diff --git a/WallpaperPicker/src/com/android/gallery3d/common/BitmapCropTask.java b/WallpaperPicker/src/com/android/gallery3d/common/BitmapCropTask.java
new file mode 100644
index 0000000..45118bf
--- /dev/null
+++ b/WallpaperPicker/src/com/android/gallery3d/common/BitmapCropTask.java
@@ -0,0 +1,405 @@
+/**
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.gallery3d.common;
+
+import android.app.WallpaperManager;
+import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Bitmap.CompressFormat;
+import android.graphics.BitmapFactory;
+import android.graphics.BitmapRegionDecoder;
+import android.graphics.Canvas;
+import android.graphics.Matrix;
+import android.graphics.Paint;
+import android.graphics.Point;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.net.Uri;
+import android.os.AsyncTask;
+import android.util.Log;
+
+import java.io.BufferedInputStream;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+
+public class BitmapCropTask extends AsyncTask<Void, Void, Boolean> {
+
+    public interface OnBitmapCroppedHandler {
+        public void onBitmapCropped(byte[] imageBytes);
+    }
+
+    private static final int DEFAULT_COMPRESS_QUALITY = 90;
+    private static final String LOGTAG = "BitmapCropTask";
+
+    Uri mInUri = null;
+    Context mContext;
+    String mInFilePath;
+    byte[] mInImageBytes;
+    int mInResId = 0;
+    RectF mCropBounds = null;
+    int mOutWidth, mOutHeight;
+    int mRotation;
+    boolean mSetWallpaper;
+    boolean mSaveCroppedBitmap;
+    Bitmap mCroppedBitmap;
+    Runnable mOnEndRunnable;
+    Resources mResources;
+    BitmapCropTask.OnBitmapCroppedHandler mOnBitmapCroppedHandler;
+    boolean mNoCrop;
+
+    public BitmapCropTask(Context c, String filePath,
+            RectF cropBounds, int rotation, int outWidth, int outHeight,
+            boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
+        mContext = c;
+        mInFilePath = filePath;
+        init(cropBounds, rotation,
+                outWidth, outHeight, setWallpaper, saveCroppedBitmap, onEndRunnable);
+    }
+
+    public BitmapCropTask(byte[] imageBytes,
+            RectF cropBounds, int rotation, int outWidth, int outHeight,
+            boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
+        mInImageBytes = imageBytes;
+        init(cropBounds, rotation,
+                outWidth, outHeight, setWallpaper, saveCroppedBitmap, onEndRunnable);
+    }
+
+    public BitmapCropTask(Context c, Uri inUri,
+            RectF cropBounds, int rotation, int outWidth, int outHeight,
+            boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
+        mContext = c;
+        mInUri = inUri;
+        init(cropBounds, rotation,
+                outWidth, outHeight, setWallpaper, saveCroppedBitmap, onEndRunnable);
+    }
+
+    public BitmapCropTask(Context c, Resources res, int inResId,
+            RectF cropBounds, int rotation, int outWidth, int outHeight,
+            boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
+        mContext = c;
+        mInResId = inResId;
+        mResources = res;
+        init(cropBounds, rotation,
+                outWidth, outHeight, setWallpaper, saveCroppedBitmap, onEndRunnable);
+    }
+
+    private void init(RectF cropBounds, int rotation, int outWidth, int outHeight,
+            boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
+        mCropBounds = cropBounds;
+        mRotation = rotation;
+        mOutWidth = outWidth;
+        mOutHeight = outHeight;
+        mSetWallpaper = setWallpaper;
+        mSaveCroppedBitmap = saveCroppedBitmap;
+        mOnEndRunnable = onEndRunnable;
+    }
+
+    public void setOnBitmapCropped(BitmapCropTask.OnBitmapCroppedHandler handler) {
+        mOnBitmapCroppedHandler = handler;
+    }
+
+    public void setNoCrop(boolean value) {
+        mNoCrop = value;
+    }
+
+    public void setOnEndRunnable(Runnable onEndRunnable) {
+        mOnEndRunnable = onEndRunnable;
+    }
+
+    // Helper to setup input stream
+    private InputStream regenerateInputStream() {
+        if (mInUri == null && mInResId == 0 && mInFilePath == null && mInImageBytes == null) {
+            Log.w(LOGTAG, "cannot read original file, no input URI, resource ID, or " +
+                    "image byte array given");
+        } else {
+            try {
+                if (mInUri != null) {
+                    return new BufferedInputStream(
+                            mContext.getContentResolver().openInputStream(mInUri));
+                } else if (mInFilePath != null) {
+                    return mContext.openFileInput(mInFilePath);
+                } else if (mInImageBytes != null) {
+                    return new BufferedInputStream(new ByteArrayInputStream(mInImageBytes));
+                } else {
+                    return new BufferedInputStream(mResources.openRawResource(mInResId));
+                }
+            } catch (FileNotFoundException e) {
+                Log.w(LOGTAG, "cannot read file: " + mInUri.toString(), e);
+            }
+        }
+        return null;
+    }
+
+    public Point getImageBounds() {
+        InputStream is = regenerateInputStream();
+        if (is != null) {
+            BitmapFactory.Options options = new BitmapFactory.Options();
+            options.inJustDecodeBounds = true;
+            BitmapFactory.decodeStream(is, null, options);
+            Utils.closeSilently(is);
+            if (options.outWidth != 0 && options.outHeight != 0) {
+                return new Point(options.outWidth, options.outHeight);
+            }
+        }
+        return null;
+    }
+
+    public void setCropBounds(RectF cropBounds) {
+        mCropBounds = cropBounds;
+    }
+
+    public Bitmap getCroppedBitmap() {
+        return mCroppedBitmap;
+    }
+    public boolean cropBitmap() {
+        boolean failure = false;
+
+
+        WallpaperManager wallpaperManager = null;
+        if (mSetWallpaper) {
+            wallpaperManager = WallpaperManager.getInstance(mContext.getApplicationContext());
+        }
+
+
+        if (mSetWallpaper && mNoCrop) {
+            try {
+                InputStream is = regenerateInputStream();
+                if (is != null) {
+                    wallpaperManager.setStream(is);
+                    Utils.closeSilently(is);
+                }
+            } catch (IOException e) {
+                Log.w(LOGTAG, "cannot write stream to wallpaper", e);
+                failure = true;
+            }
+            return !failure;
+        } else {
+            // Find crop bounds (scaled to original image size)
+            Rect roundedTrueCrop = new Rect();
+            Matrix rotateMatrix = new Matrix();
+            Matrix inverseRotateMatrix = new Matrix();
+
+            Point bounds = getImageBounds();
+            if (mRotation > 0) {
+                rotateMatrix.setRotate(mRotation);
+                inverseRotateMatrix.setRotate(-mRotation);
+
+                mCropBounds.roundOut(roundedTrueCrop);
+                mCropBounds = new RectF(roundedTrueCrop);
+
+                if (bounds == null) {
+                    Log.w(LOGTAG, "cannot get bounds for image");
+                    failure = true;
+                    return false;
+                }
+
+                float[] rotatedBounds = new float[] { bounds.x, bounds.y };
+                rotateMatrix.mapPoints(rotatedBounds);
+                rotatedBounds[0] = Math.abs(rotatedBounds[0]);
+                rotatedBounds[1] = Math.abs(rotatedBounds[1]);
+
+                mCropBounds.offset(-rotatedBounds[0]/2, -rotatedBounds[1]/2);
+                inverseRotateMatrix.mapRect(mCropBounds);
+                mCropBounds.offset(bounds.x/2, bounds.y/2);
+
+            }
+
+            mCropBounds.roundOut(roundedTrueCrop);
+
+            if (roundedTrueCrop.width() <= 0 || roundedTrueCrop.height() <= 0) {
+                Log.w(LOGTAG, "crop has bad values for full size image");
+                failure = true;
+                return false;
+            }
+
+            // See how much we're reducing the size of the image
+            int scaleDownSampleSize = Math.max(1, Math.min(roundedTrueCrop.width() / mOutWidth,
+                    roundedTrueCrop.height() / mOutHeight));
+            // Attempt to open a region decoder
+            BitmapRegionDecoder decoder = null;
+            InputStream is = null;
+            try {
+                is = regenerateInputStream();
+                if (is == null) {
+                    Log.w(LOGTAG, "cannot get input stream for uri=" + mInUri.toString());
+                    failure = true;
+                    return false;
+                }
+                decoder = BitmapRegionDecoder.newInstance(is, false);
+                Utils.closeSilently(is);
+            } catch (IOException e) {
+                Log.w(LOGTAG, "cannot open region decoder for file: " + mInUri.toString(), e);
+            } finally {
+               Utils.closeSilently(is);
+               is = null;
+            }
+
+            Bitmap crop = null;
+            if (decoder != null) {
+                // Do region decoding to get crop bitmap
+                BitmapFactory.Options options = new BitmapFactory.Options();
+                if (scaleDownSampleSize > 1) {
+                    options.inSampleSize = scaleDownSampleSize;
+                }
+                crop = decoder.decodeRegion(roundedTrueCrop, options);
+                decoder.recycle();
+            }
+
+            if (crop == null) {
+                // BitmapRegionDecoder has failed, try to crop in-memory
+                is = regenerateInputStream();
+                Bitmap fullSize = null;
+                if (is != null) {
+                    BitmapFactory.Options options = new BitmapFactory.Options();
+                    if (scaleDownSampleSize > 1) {
+                        options.inSampleSize = scaleDownSampleSize;
+                    }
+                    fullSize = BitmapFactory.decodeStream(is, null, options);
+                    Utils.closeSilently(is);
+                }
+                if (fullSize != null) {
+                    // Find out the true sample size that was used by the decoder
+                    scaleDownSampleSize = bounds.x / fullSize.getWidth();
+                    mCropBounds.left /= scaleDownSampleSize;
+                    mCropBounds.top /= scaleDownSampleSize;
+                    mCropBounds.bottom /= scaleDownSampleSize;
+                    mCropBounds.right /= scaleDownSampleSize;
+                    mCropBounds.roundOut(roundedTrueCrop);
+
+                    // Adjust values to account for issues related to rounding
+                    if (roundedTrueCrop.width() > fullSize.getWidth()) {
+                        // Adjust the width
+                        roundedTrueCrop.right = roundedTrueCrop.left + fullSize.getWidth();
+                    }
+                    if (roundedTrueCrop.right > fullSize.getWidth()) {
+                        // Adjust the left value
+                        int adjustment = roundedTrueCrop.left -
+                                Math.max(0, roundedTrueCrop.right - roundedTrueCrop.width());
+                        roundedTrueCrop.left -= adjustment;
+                        roundedTrueCrop.right -= adjustment;
+                    }
+                    if (roundedTrueCrop.height() > fullSize.getHeight()) {
+                        // Adjust the height
+                        roundedTrueCrop.bottom = roundedTrueCrop.top + fullSize.getHeight();
+                    }
+                    if (roundedTrueCrop.bottom > fullSize.getHeight()) {
+                        // Adjust the top value
+                        int adjustment = roundedTrueCrop.top -
+                                Math.max(0, roundedTrueCrop.bottom - roundedTrueCrop.height());
+                        roundedTrueCrop.top -= adjustment;
+                        roundedTrueCrop.bottom -= adjustment;
+                    }
+
+                    crop = Bitmap.createBitmap(fullSize, roundedTrueCrop.left,
+                            roundedTrueCrop.top, roundedTrueCrop.width(),
+                            roundedTrueCrop.height());
+                }
+            }
+
+            if (crop == null) {
+                Log.w(LOGTAG, "cannot decode file: " + mInUri.toString());
+                failure = true;
+                return false;
+            }
+            if (mOutWidth > 0 && mOutHeight > 0 || mRotation > 0) {
+                float[] dimsAfter = new float[] { crop.getWidth(), crop.getHeight() };
+                rotateMatrix.mapPoints(dimsAfter);
+                dimsAfter[0] = Math.abs(dimsAfter[0]);
+                dimsAfter[1] = Math.abs(dimsAfter[1]);
+
+                if (!(mOutWidth > 0 && mOutHeight > 0)) {
+                    mOutWidth = Math.round(dimsAfter[0]);
+                    mOutHeight = Math.round(dimsAfter[1]);
+                }
+
+                RectF cropRect = new RectF(0, 0, dimsAfter[0], dimsAfter[1]);
+                RectF returnRect = new RectF(0, 0, mOutWidth, mOutHeight);
+
+                Matrix m = new Matrix();
+                if (mRotation == 0) {
+                    m.setRectToRect(cropRect, returnRect, Matrix.ScaleToFit.FILL);
+                } else {
+                    Matrix m1 = new Matrix();
+                    m1.setTranslate(-crop.getWidth() / 2f, -crop.getHeight() / 2f);
+                    Matrix m2 = new Matrix();
+                    m2.setRotate(mRotation);
+                    Matrix m3 = new Matrix();
+                    m3.setTranslate(dimsAfter[0] / 2f, dimsAfter[1] / 2f);
+                    Matrix m4 = new Matrix();
+                    m4.setRectToRect(cropRect, returnRect, Matrix.ScaleToFit.FILL);
+
+                    Matrix c1 = new Matrix();
+                    c1.setConcat(m2, m1);
+                    Matrix c2 = new Matrix();
+                    c2.setConcat(m4, m3);
+                    m.setConcat(c2, c1);
+                }
+
+                Bitmap tmp = Bitmap.createBitmap((int) returnRect.width(),
+                        (int) returnRect.height(), Bitmap.Config.ARGB_8888);
+                if (tmp != null) {
+                    Canvas c = new Canvas(tmp);
+                    Paint p = new Paint();
+                    p.setFilterBitmap(true);
+                    c.drawBitmap(crop, m, p);
+                    crop = tmp;
+                }
+            }
+
+            if (mSaveCroppedBitmap) {
+                mCroppedBitmap = crop;
+            }
+
+            // Compress to byte array
+            ByteArrayOutputStream tmpOut = new ByteArrayOutputStream(2048);
+            if (crop.compress(CompressFormat.JPEG, DEFAULT_COMPRESS_QUALITY, tmpOut)) {
+                // If we need to set to the wallpaper, set it
+                if (mSetWallpaper && wallpaperManager != null) {
+                    try {
+                        byte[] outByteArray = tmpOut.toByteArray();
+                        wallpaperManager.setStream(new ByteArrayInputStream(outByteArray));
+                        if (mOnBitmapCroppedHandler != null) {
+                            mOnBitmapCroppedHandler.onBitmapCropped(outByteArray);
+                        }
+                    } catch (IOException e) {
+                        Log.w(LOGTAG, "cannot write stream to wallpaper", e);
+                        failure = true;
+                    }
+                }
+            } else {
+                Log.w(LOGTAG, "cannot compress bitmap");
+                failure = true;
+            }
+        }
+        return !failure; // True if any of the operations failed
+    }
+
+    @Override
+    protected Boolean doInBackground(Void... params) {
+        return cropBitmap();
+    }
+
+    @Override
+    protected void onPostExecute(Boolean result) {
+        if (mOnEndRunnable != null) {
+            mOnEndRunnable.run();
+        }
+    }
+}
\ No newline at end of file
diff --git a/WallpaperPicker/src/com/android/gallery3d/common/BitmapUtils.java b/WallpaperPicker/src/com/android/gallery3d/common/BitmapUtils.java
index 6a816d9..3470017 100644
--- a/WallpaperPicker/src/com/android/gallery3d/common/BitmapUtils.java
+++ b/WallpaperPicker/src/com/android/gallery3d/common/BitmapUtils.java
@@ -16,83 +16,32 @@
 
 package com.android.gallery3d.common;
 
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.content.res.Resources;
 import android.graphics.Bitmap;
-import android.graphics.Bitmap.CompressFormat;
 import android.graphics.Canvas;
-import android.graphics.Matrix;
 import android.graphics.Paint;
-import android.util.FloatMath;
+import android.graphics.Point;
+import android.net.Uri;
+import android.os.Build;
 import android.util.Log;
+import android.view.WindowManager;
 
-import java.io.ByteArrayOutputStream;
+import com.android.gallery3d.exif.ExifInterface;
+import com.android.launcher3.WallpaperCropActivity;
+
+import java.io.BufferedInputStream;
+import java.io.IOException;
+import java.io.InputStream;
 
 public class BitmapUtils {
+
     private static final String TAG = "BitmapUtils";
-    private static final int DEFAULT_JPEG_QUALITY = 90;
-    public static final int UNCONSTRAINED = -1;
-
-    private BitmapUtils(){}
-
-    /*
-     * Compute the sample size as a function of minSideLength
-     * and maxNumOfPixels.
-     * minSideLength is used to specify that minimal width or height of a
-     * bitmap.
-     * maxNumOfPixels is used to specify the maximal size in pixels that is
-     * tolerable in terms of memory usage.
-     *
-     * The function returns a sample size based on the constraints.
-     * Both size and minSideLength can be passed in as UNCONSTRAINED,
-     * which indicates no care of the corresponding constraint.
-     * The functions prefers returning a sample size that
-     * generates a smaller bitmap, unless minSideLength = UNCONSTRAINED.
-     *
-     * Also, the function rounds up the sample size to a power of 2 or multiple
-     * of 8 because BitmapFactory only honors sample size this way.
-     * For example, BitmapFactory downsamples an image by 2 even though the
-     * request is 3. So we round up the sample size to avoid OOM.
-     */
-    public static int computeSampleSize(int width, int height,
-            int minSideLength, int maxNumOfPixels) {
-        int initialSize = computeInitialSampleSize(
-                width, height, minSideLength, maxNumOfPixels);
-
-        return initialSize <= 8
-                ? Utils.nextPowerOf2(initialSize)
-                : (initialSize + 7) / 8 * 8;
-    }
-
-    private static int computeInitialSampleSize(int w, int h,
-            int minSideLength, int maxNumOfPixels) {
-        if (maxNumOfPixels == UNCONSTRAINED
-                && minSideLength == UNCONSTRAINED) return 1;
-
-        int lowerBound = (maxNumOfPixels == UNCONSTRAINED) ? 1 :
-                (int) FloatMath.ceil(FloatMath.sqrt((float) (w * h) / maxNumOfPixels));
-
-        if (minSideLength == UNCONSTRAINED) {
-            return lowerBound;
-        } else {
-            int sampleSize = Math.min(w / minSideLength, h / minSideLength);
-            return Math.max(sampleSize, lowerBound);
-        }
-    }
-
-    // This computes a sample size which makes the longer side at least
-    // minSideLength long. If that's not possible, return 1.
-    public static int computeSampleSizeLarger(int w, int h,
-            int minSideLength) {
-        int initialSize = Math.max(w / minSideLength, h / minSideLength);
-        if (initialSize <= 1) return 1;
-
-        return initialSize <= 8
-                ? Utils.prevPowerOf2(initialSize)
-                : initialSize / 8 * 8;
-    }
 
     // Find the min x that 1 / x >= scale
     public static int computeSampleSizeLarger(float scale) {
-        int initialSize = (int) FloatMath.floor(1f / scale);
+        int initialSize = (int) Math.floor(1f / scale);
         if (initialSize <= 1) return 1;
 
         return initialSize <= 8
@@ -100,15 +49,6 @@
                 : initialSize / 8 * 8;
     }
 
-    // Find the max x that 1 / x <= scale.
-    public static int computeSampleSize(float scale) {
-        Utils.assertTrue(scale > 0);
-        int initialSize = Math.max(1, (int) FloatMath.ceil(1 / scale));
-        return initialSize <= 8
-                ? Utils.nextPowerOf2(initialSize)
-                : (initialSize + 7) / 8 * 8;
-    }
-
     public static Bitmap resizeBitmapByScale(
             Bitmap bitmap, float scale, boolean recycle) {
         int width = Math.round(bitmap.getWidth() * scale);
@@ -132,77 +72,104 @@
         return config;
     }
 
-    public static Bitmap resizeDownBySideLength(
-            Bitmap bitmap, int maxLength, boolean recycle) {
-        int srcWidth = bitmap.getWidth();
-        int srcHeight = bitmap.getHeight();
-        float scale = Math.min(
-                (float) maxLength / srcWidth, (float) maxLength / srcHeight);
-        if (scale >= 1.0f) return bitmap;
-        return resizeBitmapByScale(bitmap, scale, recycle);
+    /**
+     * As a ratio of screen height, the total distance we want the parallax effect to span
+     * horizontally
+     */
+    public static float wallpaperTravelToScreenWidthRatio(int width, int height) {
+        float aspectRatio = width / (float) height;
+
+        // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width
+        // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width
+        // We will use these two data points to extrapolate how much the wallpaper parallax effect
+        // to span (ie travel) at any aspect ratio:
+
+        final float ASPECT_RATIO_LANDSCAPE = 16/10f;
+        final float ASPECT_RATIO_PORTRAIT = 10/16f;
+        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f;
+        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f;
+
+        // To find out the desired width at different aspect ratios, we use the following two
+        // formulas, where the coefficient on x is the aspect ratio (width/height):
+        //   (16/10)x + y = 1.5
+        //   (10/16)x + y = 1.2
+        // We solve for x and y and end up with a final formula:
+        final float x =
+            (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) /
+            (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT);
+        final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT;
+        return x * aspectRatio + y;
     }
 
-    public static Bitmap resizeAndCropCenter(Bitmap bitmap, int size, boolean recycle) {
-        int w = bitmap.getWidth();
-        int h = bitmap.getHeight();
-        if (w == size && h == size) return bitmap;
+    private static Point sDefaultWallpaperSize;
 
-        // scale the image so that the shorter side equals to the target;
-        // the longer side will be center-cropped.
-        float scale = (float) size / Math.min(w,  h);
+    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
+    public static Point getDefaultWallpaperSize(Resources res, WindowManager windowManager) {
+        if (sDefaultWallpaperSize == null) {
+            Point minDims = new Point();
+            Point maxDims = new Point();
+            windowManager.getDefaultDisplay().getCurrentSizeRange(minDims, maxDims);
 
-        Bitmap target = Bitmap.createBitmap(size, size, getConfig(bitmap));
-        int width = Math.round(scale * bitmap.getWidth());
-        int height = Math.round(scale * bitmap.getHeight());
-        Canvas canvas = new Canvas(target);
-        canvas.translate((size - width) / 2f, (size - height) / 2f);
-        canvas.scale(scale, scale);
-        Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
-        canvas.drawBitmap(bitmap, 0, 0, paint);
-        if (recycle) bitmap.recycle();
-        return target;
-    }
+            int maxDim = Math.max(maxDims.x, maxDims.y);
+            int minDim = Math.max(minDims.x, minDims.y);
 
-    public static void recycleSilently(Bitmap bitmap) {
-        if (bitmap == null) return;
-        try {
-            bitmap.recycle();
-        } catch (Throwable t) {
-            Log.w(TAG, "unable recycle bitmap", t);
+            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR1) {
+                Point realSize = new Point();
+                windowManager.getDefaultDisplay().getRealSize(realSize);
+                maxDim = Math.max(realSize.x, realSize.y);
+                minDim = Math.min(realSize.x, realSize.y);
+            }
+
+            // We need to ensure that there is enough extra space in the wallpaper
+            // for the intended parallax effects
+            final int defaultWidth, defaultHeight;
+            if (res.getConfiguration().smallestScreenWidthDp >= 720) {
+                defaultWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim));
+                defaultHeight = maxDim;
+            } else {
+                defaultWidth = Math.max((int) (minDim * WallpaperCropActivity.WALLPAPER_SCREENS_SPAN), maxDim);
+                defaultHeight = maxDim;
+            }
+            sDefaultWallpaperSize = new Point(defaultWidth, defaultHeight);
         }
+        return sDefaultWallpaperSize;
     }
 
-    public static Bitmap rotateBitmap(Bitmap source, int rotation, boolean recycle) {
-        if (rotation == 0) return source;
-        int w = source.getWidth();
-        int h = source.getHeight();
-        Matrix m = new Matrix();
-        m.postRotate(rotation);
-        Bitmap bitmap = Bitmap.createBitmap(source, 0, 0, w, h, m, true);
-        if (recycle) source.recycle();
-        return bitmap;
+    public static int getRotationFromExif(Context context, Uri uri) {
+        return BitmapUtils.getRotationFromExifHelper(null, 0, context, uri);
     }
 
-    public static byte[] compressToBytes(Bitmap bitmap) {
-        return compressToBytes(bitmap, DEFAULT_JPEG_QUALITY);
+    public static int getRotationFromExif(Resources res, int resId) {
+        return BitmapUtils.getRotationFromExifHelper(res, resId, null, null);
     }
 
-    public static byte[] compressToBytes(Bitmap bitmap, int quality) {
-        ByteArrayOutputStream baos = new ByteArrayOutputStream(65536);
-        bitmap.compress(CompressFormat.JPEG, quality, baos);
-        return baos.toByteArray();
-    }
-
-    public static boolean isSupportedByRegionDecoder(String mimeType) {
-        if (mimeType == null) return false;
-        mimeType = mimeType.toLowerCase();
-        return mimeType.startsWith("image/") &&
-                (!mimeType.equals("image/gif") && !mimeType.endsWith("bmp"));
-    }
-
-    public static boolean isRotationSupported(String mimeType) {
-        if (mimeType == null) return false;
-        mimeType = mimeType.toLowerCase();
-        return mimeType.equals("image/jpeg");
+    private static int getRotationFromExifHelper(Resources res, int resId, Context context, Uri uri) {
+        ExifInterface ei = new ExifInterface();
+        InputStream is = null;
+        BufferedInputStream bis = null;
+        try {
+            if (uri != null) {
+                is = context.getContentResolver().openInputStream(uri);
+                bis = new BufferedInputStream(is);
+                ei.readExif(bis);
+            } else {
+                is = res.openRawResource(resId);
+                bis = new BufferedInputStream(is);
+                ei.readExif(bis);
+            }
+            Integer ori = ei.getTagIntValue(ExifInterface.TAG_ORIENTATION);
+            if (ori != null) {
+                return ExifInterface.getRotationForOrientationValue(ori.shortValue());
+            }
+        } catch (IOException e) {
+            Log.w(TAG, "Getting exif data failed", e);
+        } catch (NullPointerException e) {
+            // Sometimes the ExifInterface has an internal NPE if Exif data isn't valid
+            Log.w(TAG, "Getting exif data failed", e);
+        } finally {
+            Utils.closeSilently(bis);
+            Utils.closeSilently(is);
+        }
+        return 0;
     }
 }
diff --git a/WallpaperPicker/src/com/android/gallery3d/common/Utils.java b/WallpaperPicker/src/com/android/gallery3d/common/Utils.java
index 614a081..8466c22 100644
--- a/WallpaperPicker/src/com/android/gallery3d/common/Utils.java
+++ b/WallpaperPicker/src/com/android/gallery3d/common/Utils.java
@@ -16,32 +16,16 @@
 
 package com.android.gallery3d.common;
 
-import android.content.Context;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager.NameNotFoundException;
 import android.database.Cursor;
-import android.os.Build;
+import android.graphics.RectF;
 import android.os.ParcelFileDescriptor;
-import android.text.TextUtils;
 import android.util.Log;
 
 import java.io.Closeable;
 import java.io.IOException;
-import java.io.InterruptedIOException;
 
 public class Utils {
     private static final String TAG = "Utils";
-    private static final String DEBUG_TAG = "GalleryDebug";
-
-    private static final long POLY64REV = 0x95AC9329AC4BC9B5L;
-    private static final long INITIALCRC = 0xFFFFFFFFFFFFFFFFL;
-
-    private static long[] sCrcTable = new long[256];
-
-    private static final boolean IS_DEBUG_BUILD =
-            Build.TYPE.equals("eng") || Build.TYPE.equals("userdebug");
-
-    private static final String MASK_STRING = "********************************";
 
     // Throws AssertionError if the input is false.
     public static void assertTrue(boolean cond) {
@@ -50,28 +34,6 @@
         }
     }
 
-    // Throws AssertionError with the message. We had a method having the form
-    //   assertTrue(boolean cond, String message, Object ... args);
-    // However a call to that method will cause memory allocation even if the
-    // condition is false (due to autoboxing generated by "Object ... args"),
-    // so we don't use that anymore.
-    public static void fail(String message, Object ... args) {
-        throw new AssertionError(
-                args.length == 0 ? message : String.format(message, args));
-    }
-
-    // Throws NullPointerException if the input is null.
-    public static <T> T checkNotNull(T object) {
-        if (object == null) throw new NullPointerException();
-        return object;
-    }
-
-    // Returns true if two input Object are both null or equal
-    // to each other.
-    public static boolean equals(Object a, Object b) {
-        return (a == b) || (a == null ? false : a.equals(b));
-    }
-
     // Returns the next power of two.
     // Returns the input if it is already power of 2.
     // Throws IllegalArgumentException if the input is <= 0 or
@@ -102,87 +64,6 @@
         return x;
     }
 
-    // Returns the input value x clamped to the range [min, max].
-    public static float clamp(float x, float min, float max) {
-        if (x > max) return max;
-        if (x < min) return min;
-        return x;
-    }
-
-    // Returns the input value x clamped to the range [min, max].
-    public static long clamp(long x, long min, long max) {
-        if (x > max) return max;
-        if (x < min) return min;
-        return x;
-    }
-
-    public static boolean isOpaque(int color) {
-        return color >>> 24 == 0xFF;
-    }
-
-    public static void swap(int[] array, int i, int j) {
-        int temp = array[i];
-        array[i] = array[j];
-        array[j] = temp;
-    }
-
-    /**
-     * A function thats returns a 64-bit crc for string
-     *
-     * @param in input string
-     * @return a 64-bit crc value
-     */
-    public static final long crc64Long(String in) {
-        if (in == null || in.length() == 0) {
-            return 0;
-        }
-        return crc64Long(getBytes(in));
-    }
-
-    static {
-        // http://bioinf.cs.ucl.ac.uk/downloads/crc64/crc64.c
-        long part;
-        for (int i = 0; i < 256; i++) {
-            part = i;
-            for (int j = 0; j < 8; j++) {
-                long x = ((int) part & 1) != 0 ? POLY64REV : 0;
-                part = (part >> 1) ^ x;
-            }
-            sCrcTable[i] = part;
-        }
-    }
-
-    public static final long crc64Long(byte[] buffer) {
-        long crc = INITIALCRC;
-        for (int k = 0, n = buffer.length; k < n; ++k) {
-            crc = sCrcTable[(((int) crc) ^ buffer[k]) & 0xff] ^ (crc >> 8);
-        }
-        return crc;
-    }
-
-    public static byte[] getBytes(String in) {
-        byte[] result = new byte[in.length() * 2];
-        int output = 0;
-        for (char ch : in.toCharArray()) {
-            result[output++] = (byte) (ch & 0xFF);
-            result[output++] = (byte) (ch >> 8);
-        }
-        return result;
-    }
-
-    public static void closeSilently(Closeable c) {
-        if (c == null) return;
-        try {
-            c.close();
-        } catch (IOException t) {
-            Log.w(TAG, "close fail ", t);
-        }
-    }
-
-    public static int compare(long a, long b) {
-        return a < b ? -1 : a == b ? 0 : 1;
-    }
-
     public static int ceilLog2(float value) {
         int i;
         for (i = 0; i < 31; i++) {
@@ -199,6 +80,15 @@
         return i - 1;
     }
 
+    public static void closeSilently(Closeable c) {
+        if (c == null) return;
+        try {
+            c.close();
+        } catch (IOException t) {
+            Log.w(TAG, "close fail ", t);
+        }
+    }
+
     public static void closeSilently(ParcelFileDescriptor fd) {
         try {
             if (fd != null) fd.close();
@@ -215,126 +105,25 @@
         }
     }
 
-    public static float interpolateAngle(
-            float source, float target, float progress) {
-        // interpolate the angle from source to target
-        // We make the difference in the range of [-179, 180], this is the
-        // shortest path to change source to target.
-        float diff = target - source;
-        if (diff < 0) diff += 360f;
-        if (diff > 180) diff -= 360f;
-
-        float result = source + diff * progress;
-        return result < 0 ? result + 360f : result;
-    }
-
-    public static float interpolateScale(
-            float source, float target, float progress) {
-        return source + progress * (target - source);
-    }
-
-    public static String ensureNotNull(String value) {
-        return value == null ? "" : value;
-    }
-
-    public static float parseFloatSafely(String content, float defaultValue) {
-        if (content == null) return defaultValue;
-        try {
-            return Float.parseFloat(content);
-        } catch (NumberFormatException e) {
-            return defaultValue;
+    public static RectF getMaxCropRect(
+            int inWidth, int inHeight, int outWidth, int outHeight, boolean leftAligned) {
+        RectF cropRect = new RectF();
+        // Get a crop rect that will fit this
+        if (inWidth / (float) inHeight > outWidth / (float) outHeight) {
+             cropRect.top = 0;
+             cropRect.bottom = inHeight;
+             cropRect.left = (inWidth - (outWidth / (float) outHeight) * inHeight) / 2;
+             cropRect.right = inWidth - cropRect.left;
+             if (leftAligned) {
+                 cropRect.right -= cropRect.left;
+                 cropRect.left = 0;
+             }
+        } else {
+            cropRect.left = 0;
+            cropRect.right = inWidth;
+            cropRect.top = (inHeight - (outHeight / (float) outWidth) * inWidth) / 2;
+            cropRect.bottom = inHeight - cropRect.top;
         }
-    }
-
-    public static int parseIntSafely(String content, int defaultValue) {
-        if (content == null) return defaultValue;
-        try {
-            return Integer.parseInt(content);
-        } catch (NumberFormatException e) {
-            return defaultValue;
-        }
-    }
-
-    public static boolean isNullOrEmpty(String exifMake) {
-        return TextUtils.isEmpty(exifMake);
-    }
-
-    public static void waitWithoutInterrupt(Object object) {
-        try {
-            object.wait();
-        } catch (InterruptedException e) {
-            Log.w(TAG, "unexpected interrupt: " + object);
-        }
-    }
-
-    public static boolean handleInterrruptedException(Throwable e) {
-        // A helper to deal with the interrupt exception
-        // If an interrupt detected, we will setup the bit again.
-        if (e instanceof InterruptedIOException
-                || e instanceof InterruptedException) {
-            Thread.currentThread().interrupt();
-            return true;
-        }
-        return false;
-    }
-
-    /**
-     * @return String with special XML characters escaped.
-     */
-    public static String escapeXml(String s) {
-        StringBuilder sb = new StringBuilder();
-        for (int i = 0, len = s.length(); i < len; ++i) {
-            char c = s.charAt(i);
-            switch (c) {
-                case '<':  sb.append("&lt;"); break;
-                case '>':  sb.append("&gt;"); break;
-                case '\"': sb.append("&quot;"); break;
-                case '\'': sb.append("&#039;"); break;
-                case '&':  sb.append("&amp;"); break;
-                default: sb.append(c);
-            }
-        }
-        return sb.toString();
-    }
-
-    public static String getUserAgent(Context context) {
-        PackageInfo packageInfo;
-        try {
-            packageInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
-        } catch (NameNotFoundException e) {
-            throw new IllegalStateException("getPackageInfo failed");
-        }
-        return String.format("%s/%s; %s/%s/%s/%s; %s/%s/%s",
-                packageInfo.packageName,
-                packageInfo.versionName,
-                Build.BRAND,
-                Build.DEVICE,
-                Build.MODEL,
-                Build.ID,
-                Build.VERSION.SDK_INT,
-                Build.VERSION.RELEASE,
-                Build.VERSION.INCREMENTAL);
-    }
-
-    public static String[] copyOf(String[] source, int newSize) {
-        String[] result = new String[newSize];
-        newSize = Math.min(source.length, newSize);
-        System.arraycopy(source, 0, result, 0, newSize);
-        return result;
-    }
-
-    // Mask information for debugging only. It returns <code>info.toString()</code> directly
-    // for debugging build (i.e., 'eng' and 'userdebug') and returns a mask ("****")
-    // in release build to protect the information (e.g. for privacy issue).
-    public static String maskDebugInfo(Object info) {
-        if (info == null) return null;
-        String s = info.toString();
-        int length = Math.min(s.length(), MASK_STRING.length());
-        return IS_DEBUG_BUILD ? s : MASK_STRING.substring(0, length);
-    }
-
-    // This method should be ONLY used for debugging.
-    public static void debug(String message, Object ... args) {
-        Log.v(DEBUG_TAG, String.format(message, args));
+        return cropRect;
     }
 }
diff --git a/WallpaperPicker/src/com/android/gallery3d/glrenderer/BasicTexture.java b/WallpaperPicker/src/com/android/gallery3d/glrenderer/BasicTexture.java
index 2e77b90..0f3efb7 100644
--- a/WallpaperPicker/src/com/android/gallery3d/glrenderer/BasicTexture.java
+++ b/WallpaperPicker/src/com/android/gallery3d/glrenderer/BasicTexture.java
@@ -27,7 +27,6 @@
 // If a BasicTexture is loaded into GL memory, it has a GL texture id.
 public abstract class BasicTexture implements Texture {
 
-    @SuppressWarnings("unused")
     private static final String TAG = "BasicTexture";
     protected static final int UNSPECIFIED = -1;
 
diff --git a/WallpaperPicker/src/com/android/gallery3d/glrenderer/GLES20Canvas.java b/WallpaperPicker/src/com/android/gallery3d/glrenderer/GLES20Canvas.java
index 4ead131..8af1f59 100644
--- a/WallpaperPicker/src/com/android/gallery3d/glrenderer/GLES20Canvas.java
+++ b/WallpaperPicker/src/com/android/gallery3d/glrenderer/GLES20Canvas.java
@@ -23,8 +23,6 @@
 import android.opengl.Matrix;
 import android.util.Log;
 
-import com.android.gallery3d.util.IntArray;
-
 import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
diff --git a/WallpaperPicker/src/com/android/gallery3d/util/IntArray.java b/WallpaperPicker/src/com/android/gallery3d/glrenderer/IntArray.java
similarity index 97%
rename from WallpaperPicker/src/com/android/gallery3d/util/IntArray.java
rename to WallpaperPicker/src/com/android/gallery3d/glrenderer/IntArray.java
index 2c4dc2c..f123624 100644
--- a/WallpaperPicker/src/com/android/gallery3d/util/IntArray.java
+++ b/WallpaperPicker/src/com/android/gallery3d/glrenderer/IntArray.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.android.gallery3d.util;
+package com.android.gallery3d.glrenderer;
 
 public class IntArray {
     private static final int INIT_CAPACITY = 8;
diff --git a/WallpaperPicker/src/com/android/launcher3/LiveWallpaperListAdapter.java b/WallpaperPicker/src/com/android/launcher3/LiveWallpaperListAdapter.java
index 88f4461..0a9050c 100644
--- a/WallpaperPicker/src/com/android/launcher3/LiveWallpaperListAdapter.java
+++ b/WallpaperPicker/src/com/android/launcher3/LiveWallpaperListAdapter.java
@@ -122,8 +122,8 @@
             Intent preview = new Intent(WallpaperManager.ACTION_CHANGE_LIVE_WALLPAPER);
             preview.putExtra(WallpaperManager.EXTRA_LIVE_WALLPAPER_COMPONENT,
                     mInfo.getComponent());
-            a.onLiveWallpaperPickerLaunch(mInfo);
-            a.startActivityForResultSafely(preview, WallpaperPickerActivity.PICK_LIVE_WALLPAPER);
+            a.startActivityForResultSafely(preview,
+                    WallpaperPickerActivity.PICK_WALLPAPER_THIRD_PARTY_ACTIVITY);
         }
     }
 
diff --git a/WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.java b/WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.java
index fa8ec64..71c7a16 100644
--- a/WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.java
+++ b/WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.java
@@ -16,6 +16,7 @@
 
 package com.android.launcher3;
 
+import android.annotation.TargetApi;
 import android.app.ActionBar;
 import android.app.Activity;
 import android.app.WallpaperManager;
@@ -24,43 +25,30 @@
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.content.res.Resources;
-import android.graphics.Bitmap;
-import android.graphics.Bitmap.CompressFormat;
-import android.graphics.BitmapFactory;
-import android.graphics.BitmapRegionDecoder;
-import android.graphics.Canvas;
 import android.graphics.Matrix;
-import android.graphics.Paint;
 import android.graphics.Point;
-import android.graphics.Rect;
 import android.graphics.RectF;
 import android.net.Uri;
 import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.Display;
 import android.view.View;
 import android.view.WindowManager;
 import android.widget.Toast;
-
+import com.android.gallery3d.common.BitmapCropTask;
+import com.android.gallery3d.common.BitmapUtils;
 import com.android.gallery3d.common.Utils;
-import com.android.gallery3d.exif.ExifInterface;
 import com.android.photos.BitmapRegionTileSource;
 import com.android.photos.BitmapRegionTileSource.BitmapSource;
 
-import java.io.BufferedInputStream;
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-
 public class WallpaperCropActivity extends Activity {
     private static final String LOGTAG = "Launcher3.CropActivity";
 
     protected static final String WALLPAPER_WIDTH_KEY = "wallpaper.width";
     protected static final String WALLPAPER_HEIGHT_KEY = "wallpaper.height";
-    private static final int DEFAULT_COMPRESS_QUALITY = 90;
+
     /**
      * The maximum bitmap size we allow to be returned through the intent.
      * Intents have a maximum of 1MB in total size. However, the Bitmap seems to
@@ -69,9 +57,7 @@
      * array instead of a Bitmap instance to avoid overhead.
      */
     public static final int MAX_BMAP_IN_INTENT = 750000;
-    private static final float WALLPAPER_SCREENS_SPAN = 2f;
-
-    protected static Point sDefaultWallpaperSize;
+    public static final float WALLPAPER_SCREENS_SPAN = 2f;
 
     protected CropView mCropView;
     protected Uri mUri;
@@ -205,111 +191,8 @@
         return LauncherFiles.WALLPAPER_CROP_PREFERENCES_KEY;
     }
 
-    // As a ratio of screen height, the total distance we want the parallax effect to span
-    // horizontally
-    private static float wallpaperTravelToScreenWidthRatio(int width, int height) {
-        float aspectRatio = width / (float) height;
-
-        // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width
-        // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width
-        // We will use these two data points to extrapolate how much the wallpaper parallax effect
-        // to span (ie travel) at any aspect ratio:
-
-        final float ASPECT_RATIO_LANDSCAPE = 16/10f;
-        final float ASPECT_RATIO_PORTRAIT = 10/16f;
-        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f;
-        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f;
-
-        // To find out the desired width at different aspect ratios, we use the following two
-        // formulas, where the coefficient on x is the aspect ratio (width/height):
-        //   (16/10)x + y = 1.5
-        //   (10/16)x + y = 1.2
-        // We solve for x and y and end up with a final formula:
-        final float x =
-            (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) /
-            (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT);
-        final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT;
-        return x * aspectRatio + y;
-    }
-
-    static protected Point getDefaultWallpaperSize(Resources res, WindowManager windowManager) {
-        if (sDefaultWallpaperSize == null) {
-            Point minDims = new Point();
-            Point maxDims = new Point();
-            windowManager.getDefaultDisplay().getCurrentSizeRange(minDims, maxDims);
-
-            int maxDim = Math.max(maxDims.x, maxDims.y);
-            int minDim = Math.max(minDims.x, minDims.y);
-
-            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR1) {
-                Point realSize = new Point();
-                windowManager.getDefaultDisplay().getRealSize(realSize);
-                maxDim = Math.max(realSize.x, realSize.y);
-                minDim = Math.min(realSize.x, realSize.y);
-            }
-
-            // We need to ensure that there is enough extra space in the wallpaper
-            // for the intended parallax effects
-            final int defaultWidth, defaultHeight;
-            if (isScreenLarge(res)) {
-                defaultWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim));
-                defaultHeight = maxDim;
-            } else {
-                defaultWidth = Math.max((int) (minDim * WALLPAPER_SCREENS_SPAN), maxDim);
-                defaultHeight = maxDim;
-            }
-            sDefaultWallpaperSize = new Point(defaultWidth, defaultHeight);
-        }
-        return sDefaultWallpaperSize;
-    }
-
-    public static int getRotationFromExif(String path) {
-        return getRotationFromExifHelper(path, null, 0, null, null);
-    }
-
-    public static int getRotationFromExif(Context context, Uri uri) {
-        return getRotationFromExifHelper(null, null, 0, context, uri);
-    }
-
-    public static int getRotationFromExif(Resources res, int resId) {
-        return getRotationFromExifHelper(null, res, resId, null, null);
-    }
-
-    private static int getRotationFromExifHelper(
-            String path, Resources res, int resId, Context context, Uri uri) {
-        ExifInterface ei = new ExifInterface();
-        InputStream is = null;
-        BufferedInputStream bis = null;
-        try {
-            if (path != null) {
-                ei.readExif(path);
-            } else if (uri != null) {
-                is = context.getContentResolver().openInputStream(uri);
-                bis = new BufferedInputStream(is);
-                ei.readExif(bis);
-            } else {
-                is = res.openRawResource(resId);
-                bis = new BufferedInputStream(is);
-                ei.readExif(bis);
-            }
-            Integer ori = ei.getTagIntValue(ExifInterface.TAG_ORIENTATION);
-            if (ori != null) {
-                return ExifInterface.getRotationForOrientationValue(ori.shortValue());
-            }
-        } catch (IOException e) {
-            Log.w(LOGTAG, "Getting exif data failed", e);
-        } catch (NullPointerException e) {
-            // Sometimes the ExifInterface has an internal NPE if Exif data isn't valid
-            Log.w(LOGTAG, "Getting exif data failed", e);
-        } finally {
-            Utils.closeSilently(bis);
-            Utils.closeSilently(is);
-        }
-        return 0;
-    }
-
     protected void setWallpaper(Uri uri, final boolean finishActivityWhenDone) {
-        int rotation = getRotationFromExif(this, uri);
+        int rotation = BitmapUtils.getRotationFromExif(this, uri);
         BitmapCropTask cropTask = new BitmapCropTask(
                 this, uri, null, rotation, 0, 0, true, false, null);
         final Point bounds = cropTask.getImageBounds();
@@ -331,11 +214,11 @@
             Resources res, int resId, final boolean finishActivityWhenDone) {
         // crop this image and scale it down to the default wallpaper size for
         // this device
-        int rotation = getRotationFromExif(res, resId);
+        int rotation = BitmapUtils.getRotationFromExif(res, resId);
         Point inSize = mCropView.getSourceDimensions();
-        Point outSize = getDefaultWallpaperSize(getResources(),
+        Point outSize = BitmapUtils.getDefaultWallpaperSize(getResources(),
                 getWindowManager());
-        RectF crop = getMaxCropRect(
+        RectF crop = Utils.getMaxCropRect(
                 inSize.x, inSize.y, outSize.x, outSize.y, false);
         Runnable onEndCrop = new Runnable() {
             public void run() {
@@ -353,13 +236,9 @@
         cropTask.execute();
     }
 
-    private static boolean isScreenLarge(Resources res) {
-        Configuration config = res.getConfiguration();
-        return config.smallestScreenWidthDp >= 720;
-    }
-
+    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
     protected void cropImageAndSetWallpaper(Uri uri,
-            OnBitmapCroppedHandler onBitmapCroppedHandler, final boolean finishActivityWhenDone) {
+            BitmapCropTask.OnBitmapCroppedHandler onBitmapCroppedHandler, final boolean finishActivityWhenDone) {
         boolean centerCrop = getResources().getBoolean(R.bool.center_crop);
         // Get the crop
         boolean ltr = mCropView.getLayoutDirection() == View.LAYOUT_DIRECTION_LTR;
@@ -370,7 +249,7 @@
         d.getSize(displaySize);
         boolean isPortrait = displaySize.x < displaySize.y;
 
-        Point defaultWallpaperSize = getDefaultWallpaperSize(getResources(),
+        Point defaultWallpaperSize = BitmapUtils.getDefaultWallpaperSize(getResources(),
                 getWindowManager());
         // Get the crop
         RectF cropRect = mCropView.getCrop();
@@ -452,372 +331,6 @@
         cropTask.execute();
     }
 
-    public interface OnBitmapCroppedHandler {
-        public void onBitmapCropped(byte[] imageBytes);
-    }
-
-    protected static class BitmapCropTask extends AsyncTask<Void, Void, Boolean> {
-        Uri mInUri = null;
-        Context mContext;
-        String mInFilePath;
-        byte[] mInImageBytes;
-        int mInResId = 0;
-        RectF mCropBounds = null;
-        int mOutWidth, mOutHeight;
-        int mRotation;
-        String mOutputFormat = "jpg"; // for now
-        boolean mSetWallpaper;
-        boolean mSaveCroppedBitmap;
-        Bitmap mCroppedBitmap;
-        Runnable mOnEndRunnable;
-        Resources mResources;
-        OnBitmapCroppedHandler mOnBitmapCroppedHandler;
-        boolean mNoCrop;
-
-        public BitmapCropTask(Context c, String filePath,
-                RectF cropBounds, int rotation, int outWidth, int outHeight,
-                boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
-            mContext = c;
-            mInFilePath = filePath;
-            init(cropBounds, rotation,
-                    outWidth, outHeight, setWallpaper, saveCroppedBitmap, onEndRunnable);
-        }
-
-        public BitmapCropTask(byte[] imageBytes,
-                RectF cropBounds, int rotation, int outWidth, int outHeight,
-                boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
-            mInImageBytes = imageBytes;
-            init(cropBounds, rotation,
-                    outWidth, outHeight, setWallpaper, saveCroppedBitmap, onEndRunnable);
-        }
-
-        public BitmapCropTask(Context c, Uri inUri,
-                RectF cropBounds, int rotation, int outWidth, int outHeight,
-                boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
-            mContext = c;
-            mInUri = inUri;
-            init(cropBounds, rotation,
-                    outWidth, outHeight, setWallpaper, saveCroppedBitmap, onEndRunnable);
-        }
-
-        public BitmapCropTask(Context c, Resources res, int inResId,
-                RectF cropBounds, int rotation, int outWidth, int outHeight,
-                boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
-            mContext = c;
-            mInResId = inResId;
-            mResources = res;
-            init(cropBounds, rotation,
-                    outWidth, outHeight, setWallpaper, saveCroppedBitmap, onEndRunnable);
-        }
-
-        private void init(RectF cropBounds, int rotation, int outWidth, int outHeight,
-                boolean setWallpaper, boolean saveCroppedBitmap, Runnable onEndRunnable) {
-            mCropBounds = cropBounds;
-            mRotation = rotation;
-            mOutWidth = outWidth;
-            mOutHeight = outHeight;
-            mSetWallpaper = setWallpaper;
-            mSaveCroppedBitmap = saveCroppedBitmap;
-            mOnEndRunnable = onEndRunnable;
-        }
-
-        public void setOnBitmapCropped(OnBitmapCroppedHandler handler) {
-            mOnBitmapCroppedHandler = handler;
-        }
-
-        public void setNoCrop(boolean value) {
-            mNoCrop = value;
-        }
-
-        public void setOnEndRunnable(Runnable onEndRunnable) {
-            mOnEndRunnable = onEndRunnable;
-        }
-
-        // Helper to setup input stream
-        private InputStream regenerateInputStream() {
-            if (mInUri == null && mInResId == 0 && mInFilePath == null && mInImageBytes == null) {
-                Log.w(LOGTAG, "cannot read original file, no input URI, resource ID, or " +
-                        "image byte array given");
-            } else {
-                try {
-                    if (mInUri != null) {
-                        return new BufferedInputStream(
-                                mContext.getContentResolver().openInputStream(mInUri));
-                    } else if (mInFilePath != null) {
-                        return mContext.openFileInput(mInFilePath);
-                    } else if (mInImageBytes != null) {
-                        return new BufferedInputStream(new ByteArrayInputStream(mInImageBytes));
-                    } else {
-                        return new BufferedInputStream(mResources.openRawResource(mInResId));
-                    }
-                } catch (FileNotFoundException e) {
-                    Log.w(LOGTAG, "cannot read file: " + mInUri.toString(), e);
-                }
-            }
-            return null;
-        }
-
-        public Point getImageBounds() {
-            InputStream is = regenerateInputStream();
-            if (is != null) {
-                BitmapFactory.Options options = new BitmapFactory.Options();
-                options.inJustDecodeBounds = true;
-                BitmapFactory.decodeStream(is, null, options);
-                Utils.closeSilently(is);
-                if (options.outWidth != 0 && options.outHeight != 0) {
-                    return new Point(options.outWidth, options.outHeight);
-                }
-            }
-            return null;
-        }
-
-        public void setCropBounds(RectF cropBounds) {
-            mCropBounds = cropBounds;
-        }
-
-        public Bitmap getCroppedBitmap() {
-            return mCroppedBitmap;
-        }
-        public boolean cropBitmap() {
-            boolean failure = false;
-
-
-            WallpaperManager wallpaperManager = null;
-            if (mSetWallpaper) {
-                wallpaperManager = WallpaperManager.getInstance(mContext.getApplicationContext());
-            }
-
-
-            if (mSetWallpaper && mNoCrop) {
-                try {
-                    InputStream is = regenerateInputStream();
-                    if (is != null) {
-                        wallpaperManager.setStream(is);
-                        Utils.closeSilently(is);
-                    }
-                } catch (IOException e) {
-                    Log.w(LOGTAG, "cannot write stream to wallpaper", e);
-                    failure = true;
-                }
-                return !failure;
-            } else {
-                // Find crop bounds (scaled to original image size)
-                Rect roundedTrueCrop = new Rect();
-                Matrix rotateMatrix = new Matrix();
-                Matrix inverseRotateMatrix = new Matrix();
-
-                Point bounds = getImageBounds();
-                if (mRotation > 0) {
-                    rotateMatrix.setRotate(mRotation);
-                    inverseRotateMatrix.setRotate(-mRotation);
-
-                    mCropBounds.roundOut(roundedTrueCrop);
-                    mCropBounds = new RectF(roundedTrueCrop);
-
-                    if (bounds == null) {
-                        Log.w(LOGTAG, "cannot get bounds for image");
-                        failure = true;
-                        return false;
-                    }
-
-                    float[] rotatedBounds = new float[] { bounds.x, bounds.y };
-                    rotateMatrix.mapPoints(rotatedBounds);
-                    rotatedBounds[0] = Math.abs(rotatedBounds[0]);
-                    rotatedBounds[1] = Math.abs(rotatedBounds[1]);
-
-                    mCropBounds.offset(-rotatedBounds[0]/2, -rotatedBounds[1]/2);
-                    inverseRotateMatrix.mapRect(mCropBounds);
-                    mCropBounds.offset(bounds.x/2, bounds.y/2);
-
-                }
-
-                mCropBounds.roundOut(roundedTrueCrop);
-
-                if (roundedTrueCrop.width() <= 0 || roundedTrueCrop.height() <= 0) {
-                    Log.w(LOGTAG, "crop has bad values for full size image");
-                    failure = true;
-                    return false;
-                }
-
-                // See how much we're reducing the size of the image
-                int scaleDownSampleSize = Math.max(1, Math.min(roundedTrueCrop.width() / mOutWidth,
-                        roundedTrueCrop.height() / mOutHeight));
-                // Attempt to open a region decoder
-                BitmapRegionDecoder decoder = null;
-                InputStream is = null;
-                try {
-                    is = regenerateInputStream();
-                    if (is == null) {
-                        Log.w(LOGTAG, "cannot get input stream for uri=" + mInUri.toString());
-                        failure = true;
-                        return false;
-                    }
-                    decoder = BitmapRegionDecoder.newInstance(is, false);
-                    Utils.closeSilently(is);
-                } catch (IOException e) {
-                    Log.w(LOGTAG, "cannot open region decoder for file: " + mInUri.toString(), e);
-                } finally {
-                   Utils.closeSilently(is);
-                   is = null;
-                }
-
-                Bitmap crop = null;
-                if (decoder != null) {
-                    // Do region decoding to get crop bitmap
-                    BitmapFactory.Options options = new BitmapFactory.Options();
-                    if (scaleDownSampleSize > 1) {
-                        options.inSampleSize = scaleDownSampleSize;
-                    }
-                    crop = decoder.decodeRegion(roundedTrueCrop, options);
-                    decoder.recycle();
-                }
-
-                if (crop == null) {
-                    // BitmapRegionDecoder has failed, try to crop in-memory
-                    is = regenerateInputStream();
-                    Bitmap fullSize = null;
-                    if (is != null) {
-                        BitmapFactory.Options options = new BitmapFactory.Options();
-                        if (scaleDownSampleSize > 1) {
-                            options.inSampleSize = scaleDownSampleSize;
-                        }
-                        fullSize = BitmapFactory.decodeStream(is, null, options);
-                        Utils.closeSilently(is);
-                    }
-                    if (fullSize != null) {
-                        // Find out the true sample size that was used by the decoder
-                        scaleDownSampleSize = bounds.x / fullSize.getWidth();
-                        mCropBounds.left /= scaleDownSampleSize;
-                        mCropBounds.top /= scaleDownSampleSize;
-                        mCropBounds.bottom /= scaleDownSampleSize;
-                        mCropBounds.right /= scaleDownSampleSize;
-                        mCropBounds.roundOut(roundedTrueCrop);
-
-                        // Adjust values to account for issues related to rounding
-                        if (roundedTrueCrop.width() > fullSize.getWidth()) {
-                            // Adjust the width
-                            roundedTrueCrop.right = roundedTrueCrop.left + fullSize.getWidth();
-                        }
-                        if (roundedTrueCrop.right > fullSize.getWidth()) {
-                            // Adjust the left value
-                            int adjustment = roundedTrueCrop.left -
-                                    Math.max(0, roundedTrueCrop.right - roundedTrueCrop.width());
-                            roundedTrueCrop.left -= adjustment;
-                            roundedTrueCrop.right -= adjustment;
-                        }
-                        if (roundedTrueCrop.height() > fullSize.getHeight()) {
-                            // Adjust the height
-                            roundedTrueCrop.bottom = roundedTrueCrop.top + fullSize.getHeight();
-                        }
-                        if (roundedTrueCrop.bottom > fullSize.getHeight()) {
-                            // Adjust the top value
-                            int adjustment = roundedTrueCrop.top -
-                                    Math.max(0, roundedTrueCrop.bottom - roundedTrueCrop.height());
-                            roundedTrueCrop.top -= adjustment;
-                            roundedTrueCrop.bottom -= adjustment;
-                        }
-
-                        crop = Bitmap.createBitmap(fullSize, roundedTrueCrop.left,
-                                roundedTrueCrop.top, roundedTrueCrop.width(),
-                                roundedTrueCrop.height());
-                    }
-                }
-
-                if (crop == null) {
-                    Log.w(LOGTAG, "cannot decode file: " + mInUri.toString());
-                    failure = true;
-                    return false;
-                }
-                if (mOutWidth > 0 && mOutHeight > 0 || mRotation > 0) {
-                    float[] dimsAfter = new float[] { crop.getWidth(), crop.getHeight() };
-                    rotateMatrix.mapPoints(dimsAfter);
-                    dimsAfter[0] = Math.abs(dimsAfter[0]);
-                    dimsAfter[1] = Math.abs(dimsAfter[1]);
-
-                    if (!(mOutWidth > 0 && mOutHeight > 0)) {
-                        mOutWidth = Math.round(dimsAfter[0]);
-                        mOutHeight = Math.round(dimsAfter[1]);
-                    }
-
-                    RectF cropRect = new RectF(0, 0, dimsAfter[0], dimsAfter[1]);
-                    RectF returnRect = new RectF(0, 0, mOutWidth, mOutHeight);
-
-                    Matrix m = new Matrix();
-                    if (mRotation == 0) {
-                        m.setRectToRect(cropRect, returnRect, Matrix.ScaleToFit.FILL);
-                    } else {
-                        Matrix m1 = new Matrix();
-                        m1.setTranslate(-crop.getWidth() / 2f, -crop.getHeight() / 2f);
-                        Matrix m2 = new Matrix();
-                        m2.setRotate(mRotation);
-                        Matrix m3 = new Matrix();
-                        m3.setTranslate(dimsAfter[0] / 2f, dimsAfter[1] / 2f);
-                        Matrix m4 = new Matrix();
-                        m4.setRectToRect(cropRect, returnRect, Matrix.ScaleToFit.FILL);
-
-                        Matrix c1 = new Matrix();
-                        c1.setConcat(m2, m1);
-                        Matrix c2 = new Matrix();
-                        c2.setConcat(m4, m3);
-                        m.setConcat(c2, c1);
-                    }
-
-                    Bitmap tmp = Bitmap.createBitmap((int) returnRect.width(),
-                            (int) returnRect.height(), Bitmap.Config.ARGB_8888);
-                    if (tmp != null) {
-                        Canvas c = new Canvas(tmp);
-                        Paint p = new Paint();
-                        p.setFilterBitmap(true);
-                        c.drawBitmap(crop, m, p);
-                        crop = tmp;
-                    }
-                }
-
-                if (mSaveCroppedBitmap) {
-                    mCroppedBitmap = crop;
-                }
-
-                // Get output compression format
-                CompressFormat cf =
-                        convertExtensionToCompressFormat(getFileExtension(mOutputFormat));
-
-                // Compress to byte array
-                ByteArrayOutputStream tmpOut = new ByteArrayOutputStream(2048);
-                if (crop.compress(cf, DEFAULT_COMPRESS_QUALITY, tmpOut)) {
-                    // If we need to set to the wallpaper, set it
-                    if (mSetWallpaper && wallpaperManager != null) {
-                        try {
-                            byte[] outByteArray = tmpOut.toByteArray();
-                            wallpaperManager.setStream(new ByteArrayInputStream(outByteArray));
-                            if (mOnBitmapCroppedHandler != null) {
-                                mOnBitmapCroppedHandler.onBitmapCropped(outByteArray);
-                            }
-                        } catch (IOException e) {
-                            Log.w(LOGTAG, "cannot write stream to wallpaper", e);
-                            failure = true;
-                        }
-                    }
-                } else {
-                    Log.w(LOGTAG, "cannot compress bitmap");
-                    failure = true;
-                }
-            }
-            return !failure; // True if any of the operations failed
-        }
-
-        @Override
-        protected Boolean doInBackground(Void... params) {
-            return cropBitmap();
-        }
-
-        @Override
-        protected void onPostExecute(Boolean result) {
-            if (mOnEndRunnable != null) {
-                mOnEndRunnable.run();
-            }
-        }
-    }
-
     protected void updateWallpaperDimensions(int width, int height) {
         String spKey = getSharedPreferencesKey();
         SharedPreferences sp = getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS);
@@ -835,11 +348,11 @@
                 sp, getWindowManager(), WallpaperManager.getInstance(this), true);
     }
 
-    static public void suggestWallpaperDimension(Resources res,
+    public static void suggestWallpaperDimension(Resources res,
             final SharedPreferences sharedPrefs,
             WindowManager windowManager,
             final WallpaperManager wallpaperManager, boolean fallBackToDefaults) {
-        final Point defaultWallpaperSize = getDefaultWallpaperSize(res, windowManager);
+        final Point defaultWallpaperSize = BitmapUtils.getDefaultWallpaperSize(res, windowManager);
         // If we have saved a wallpaper width/height, use that instead
 
         int savedWidth = sharedPrefs.getInt(WALLPAPER_WIDTH_KEY, -1);
@@ -859,40 +372,4 @@
             wallpaperManager.suggestDesiredDimensions(savedWidth, savedHeight);
         }
     }
-
-    protected static RectF getMaxCropRect(
-            int inWidth, int inHeight, int outWidth, int outHeight, boolean leftAligned) {
-        RectF cropRect = new RectF();
-        // Get a crop rect that will fit this
-        if (inWidth / (float) inHeight > outWidth / (float) outHeight) {
-             cropRect.top = 0;
-             cropRect.bottom = inHeight;
-             cropRect.left = (inWidth - (outWidth / (float) outHeight) * inHeight) / 2;
-             cropRect.right = inWidth - cropRect.left;
-             if (leftAligned) {
-                 cropRect.right -= cropRect.left;
-                 cropRect.left = 0;
-             }
-        } else {
-            cropRect.left = 0;
-            cropRect.right = inWidth;
-            cropRect.top = (inHeight - (outHeight / (float) outWidth) * inWidth) / 2;
-            cropRect.bottom = inHeight - cropRect.top;
-        }
-        return cropRect;
-    }
-
-    protected static CompressFormat convertExtensionToCompressFormat(String extension) {
-        return extension.equals("png") ? CompressFormat.PNG : CompressFormat.JPEG;
-    }
-
-    protected static String getFileExtension(String requestFormat) {
-        String outputFormat = (requestFormat == null)
-                ? "jpg"
-                : requestFormat;
-        outputFormat = outputFormat.toLowerCase();
-        return (outputFormat.equals("png") || outputFormat.equals("gif"))
-                ? "png" // We don't support gif compression.
-                : "jpg";
-    }
 }
diff --git a/WallpaperPicker/src/com/android/launcher3/WallpaperPickerActivity.java b/WallpaperPicker/src/com/android/launcher3/WallpaperPickerActivity.java
index 09e0963..f6cc6d0 100644
--- a/WallpaperPicker/src/com/android/launcher3/WallpaperPickerActivity.java
+++ b/WallpaperPicker/src/com/android/launcher3/WallpaperPickerActivity.java
@@ -20,7 +20,6 @@
 import android.annotation.TargetApi;
 import android.app.ActionBar;
 import android.app.Activity;
-import android.app.WallpaperInfo;
 import android.app.WallpaperManager;
 import android.content.Context;
 import android.content.Intent;
@@ -70,6 +69,9 @@
 import android.widget.LinearLayout;
 import android.widget.Toast;
 
+import com.android.gallery3d.common.BitmapCropTask;
+import com.android.gallery3d.common.BitmapUtils;
+import com.android.gallery3d.common.Utils;
 import com.android.photos.BitmapRegionTileSource;
 import com.android.photos.BitmapRegionTileSource.BitmapSource;
 
@@ -83,7 +85,6 @@
 
     public static final int IMAGE_PICK = 5;
     public static final int PICK_WALLPAPER_THIRD_PARTY_ACTIVITY = 6;
-    public static final int PICK_LIVE_WALLPAPER = 7;
     private static final String TEMP_WALLPAPER_TILES = "TEMP_WALLPAPER_TILES";
     private static final String SELECTED_INDEX = "SELECTED_INDEX";
     private static final int FLAG_POST_DELAY_MILLIS = 200;
@@ -102,9 +103,7 @@
 
     ArrayList<Uri> mTempWallpaperTiles = new ArrayList<Uri>();
     private SavedWallpaperImages mSavedImages;
-    private WallpaperInfo mLiveWallpaperInfoOnPickerLaunch;
     private int mSelectedIndex = -1;
-    private WallpaperInfo mLastClickedLiveWallpaperInfo;
 
     public static abstract class WallpaperTileInfo {
         protected View mView;
@@ -174,7 +173,7 @@
         @Override
         public void onSave(final WallpaperPickerActivity a) {
             boolean finishActivityWhenDone = true;
-            OnBitmapCroppedHandler h = new OnBitmapCroppedHandler() {
+            BitmapCropTask.OnBitmapCroppedHandler h = new BitmapCropTask.OnBitmapCroppedHandler() {
                 public void onBitmapCropped(byte[] imageBytes) {
                     Point thumbSize = getDefaultThumbnailSize(a.getResources());
                     // rotation is set to 0 since imageBytes has already been correctly rotated
@@ -240,9 +239,9 @@
             BitmapRegionTileSource source = new BitmapRegionTileSource(a, bitmapSource);
             CropView v = a.getCropView();
             v.setTileSource(source, null);
-            Point wallpaperSize = WallpaperCropActivity.getDefaultWallpaperSize(
+            Point wallpaperSize = BitmapUtils.getDefaultWallpaperSize(
                     a.getResources(), a.getWindowManager());
-            RectF crop = WallpaperCropActivity.getMaxCropRect(
+            RectF crop = Utils.getMaxCropRect(
                     source.getImageWidth(), source.getImageHeight(),
                     wallpaperSize.x, wallpaperSize.y, false);
             v.setScale(wallpaperSize.x / crop.width());
@@ -500,10 +499,9 @@
         if (lastPhoto != null) {
             ImageView galleryThumbnailBg =
                     (ImageView) pickImageTile.findViewById(R.id.wallpaper_image);
-            galleryThumbnailBg.setImageBitmap(getThumbnailOfLastPhoto());
+            galleryThumbnailBg.setImageBitmap(lastPhoto);
             int colorOverlay = getResources().getColor(R.color.wallpaper_picker_translucent_gray);
             galleryThumbnailBg.setColorFilter(colorOverlay, PorterDuff.Mode.SRC_ATOP);
-
         }
 
         PickImageInfo pickImageInfo = new PickImageInfo();
@@ -812,7 +810,7 @@
         rotatedBounds[0] = Math.abs(rotatedBounds[0]);
         rotatedBounds[1] = Math.abs(rotatedBounds[1]);
 
-        RectF cropRect = WallpaperCropActivity.getMaxCropRect(
+        RectF cropRect = Utils.getMaxCropRect(
                 (int) rotatedBounds[0], (int) rotatedBounds[1], width, height, leftAligned);
         cropTask.setCropBounds(cropRect);
 
@@ -839,7 +837,7 @@
         new AsyncTask<Void, Bitmap, Bitmap>() {
             protected Bitmap doInBackground(Void...args) {
                 try {
-                    int rotation = WallpaperCropActivity.getRotationFromExif(context, uri);
+                    int rotation = BitmapUtils.getRotationFromExif(context, uri);
                     return createThumbnail(defaultSize, context, uri, null, null, 0, rotation, false);
                 } catch (SecurityException securityException) {
                     if (isDestroyed()) {
@@ -885,25 +883,10 @@
                 Uri uri = data.getData();
                 addTemporaryWallpaperTile(uri, false);
             }
-        } else if (requestCode == PICK_WALLPAPER_THIRD_PARTY_ACTIVITY) {
+        } else if (requestCode == PICK_WALLPAPER_THIRD_PARTY_ACTIVITY && resultCode == RESULT_OK) {
+            // Something was set on the third-party activity.
             setResult(RESULT_OK);
             finish();
-        } else if (requestCode == PICK_LIVE_WALLPAPER) {
-            WallpaperManager wm = WallpaperManager.getInstance(this);
-            final WallpaperInfo oldLiveWallpaper = mLiveWallpaperInfoOnPickerLaunch;
-            final WallpaperInfo clickedWallpaper = mLastClickedLiveWallpaperInfo;
-            WallpaperInfo newLiveWallpaper = wm.getWallpaperInfo();
-            // Try to figure out if a live wallpaper was set;
-            if (newLiveWallpaper != null &&
-                    (oldLiveWallpaper == null
-                            || !oldLiveWallpaper.getComponent()
-                                    .equals(newLiveWallpaper.getComponent())
-                            || clickedWallpaper.getComponent()
-                                    .equals(oldLiveWallpaper.getComponent()))) {
-                // Return if a live wallpaper was set
-                setResult(RESULT_OK);
-                finish();
-            }
         }
     }
 
@@ -1024,7 +1007,7 @@
         } else {
             Resources res = getResources();
             Point defaultThumbSize = getDefaultThumbnailSize(res);
-            int rotation = WallpaperCropActivity.getRotationFromExif(res, resId);
+            int rotation = BitmapUtils.getRotationFromExif(res, resId);
             thumb = createThumbnail(
                     defaultThumbSize, this, null, null, sysRes, resId, rotation, false);
             if (thumb != null) {
@@ -1110,11 +1093,6 @@
         return mSavedImages;
     }
 
-    public void onLiveWallpaperPickerLaunch(WallpaperInfo info) {
-        mLastClickedLiveWallpaperInfo = info;
-        mLiveWallpaperInfoOnPickerLaunch = WallpaperManager.getInstance(this).getWallpaperInfo();
-    }
-
     static class ZeroPaddingDrawable extends LevelListDrawable {
         public ZeroPaddingDrawable(Drawable d) {
             super();
diff --git a/WallpaperPicker/src/com/android/photos/views/BlockingGLTextureView.java b/WallpaperPicker/src/com/android/photos/views/BlockingGLTextureView.java
deleted file mode 100644
index 8a05051..0000000
--- a/WallpaperPicker/src/com/android/photos/views/BlockingGLTextureView.java
+++ /dev/null
@@ -1,438 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.photos.views;
-
-import android.content.Context;
-import android.graphics.SurfaceTexture;
-import android.opengl.GLSurfaceView.Renderer;
-import android.opengl.GLUtils;
-import android.util.Log;
-import android.view.TextureView;
-import android.view.TextureView.SurfaceTextureListener;
-
-import javax.microedition.khronos.egl.EGL10;
-import javax.microedition.khronos.egl.EGLConfig;
-import javax.microedition.khronos.egl.EGLContext;
-import javax.microedition.khronos.egl.EGLDisplay;
-import javax.microedition.khronos.egl.EGLSurface;
-import javax.microedition.khronos.opengles.GL10;
-
-/**
- * A TextureView that supports blocking rendering for synchronous drawing
- */
-public class BlockingGLTextureView extends TextureView
-        implements SurfaceTextureListener {
-
-    private RenderThread mRenderThread;
-
-    public BlockingGLTextureView(Context context) {
-        super(context);
-        setSurfaceTextureListener(this);
-    }
-
-    public void setRenderer(Renderer renderer) {
-        if (mRenderThread != null) {
-            throw new IllegalArgumentException("Renderer already set");
-        }
-        mRenderThread = new RenderThread(renderer);
-    }
-
-    public void render() {
-        mRenderThread.render();
-    }
-
-    public void destroy() {
-        if (mRenderThread != null) {
-            mRenderThread.finish();
-            mRenderThread = null;
-        }
-    }
-
-    @Override
-    public void onSurfaceTextureAvailable(SurfaceTexture surface, int width,
-            int height) {
-        mRenderThread.setSurface(surface);
-        mRenderThread.setSize(width, height);
-    }
-
-    @Override
-    public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width,
-            int height) {
-        mRenderThread.setSize(width, height);
-    }
-
-    @Override
-    public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
-        if (mRenderThread != null) {
-            mRenderThread.setSurface(null);
-        }
-        return false;
-    }
-
-    @Override
-    public void onSurfaceTextureUpdated(SurfaceTexture surface) {
-    }
-
-    @Override
-    protected void finalize() throws Throwable {
-        try {
-            destroy();
-        } catch (Throwable t) {
-            // Ignore
-        }
-        super.finalize();
-    }
-
-    /**
-     * An EGL helper class.
-     */
-
-    private static class EglHelper {
-        private static final int EGL_CONTEXT_CLIENT_VERSION = 0x3098;
-        private static final int EGL_OPENGL_ES2_BIT = 4;
-
-        EGL10 mEgl;
-        EGLDisplay mEglDisplay;
-        EGLSurface mEglSurface;
-        EGLConfig mEglConfig;
-        EGLContext mEglContext;
-
-        private EGLConfig chooseEglConfig() {
-            int[] configsCount = new int[1];
-            EGLConfig[] configs = new EGLConfig[1];
-            int[] configSpec = getConfig();
-            if (!mEgl.eglChooseConfig(mEglDisplay, configSpec, configs, 1, configsCount)) {
-                throw new IllegalArgumentException("eglChooseConfig failed " +
-                        GLUtils.getEGLErrorString(mEgl.eglGetError()));
-            } else if (configsCount[0] > 0) {
-                return configs[0];
-            }
-            return null;
-        }
-
-        private static int[] getConfig() {
-            return new int[] {
-                    EGL10.EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
-                    EGL10.EGL_RED_SIZE, 8,
-                    EGL10.EGL_GREEN_SIZE, 8,
-                    EGL10.EGL_BLUE_SIZE, 8,
-                    EGL10.EGL_ALPHA_SIZE, 8,
-                    EGL10.EGL_DEPTH_SIZE, 0,
-                    EGL10.EGL_STENCIL_SIZE, 0,
-                    EGL10.EGL_NONE
-            };
-        }
-
-        EGLContext createContext(EGL10 egl, EGLDisplay eglDisplay, EGLConfig eglConfig) {
-            int[] attribList = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL10.EGL_NONE };
-            return egl.eglCreateContext(eglDisplay, eglConfig, EGL10.EGL_NO_CONTEXT, attribList);
-        }
-
-        /**
-         * Initialize EGL for a given configuration spec.
-         */
-        public void start() {
-            /*
-             * Get an EGL instance
-             */
-            mEgl = (EGL10) EGLContext.getEGL();
-
-            /*
-             * Get to the default display.
-             */
-            mEglDisplay = mEgl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
-
-            if (mEglDisplay == EGL10.EGL_NO_DISPLAY) {
-                throw new RuntimeException("eglGetDisplay failed");
-            }
-
-            /*
-             * We can now initialize EGL for that display
-             */
-            int[] version = new int[2];
-            if (!mEgl.eglInitialize(mEglDisplay, version)) {
-                throw new RuntimeException("eglInitialize failed");
-            }
-            mEglConfig = chooseEglConfig();
-
-            /*
-            * Create an EGL context. We want to do this as rarely as we can, because an
-            * EGL context is a somewhat heavy object.
-            */
-            mEglContext = createContext(mEgl, mEglDisplay, mEglConfig);
-
-            if (mEglContext == null || mEglContext == EGL10.EGL_NO_CONTEXT) {
-                mEglContext = null;
-                throwEglException("createContext");
-            }
-
-            mEglSurface = null;
-        }
-
-        /**
-         * Create an egl surface for the current SurfaceTexture surface. If a surface
-         * already exists, destroy it before creating the new surface.
-         *
-         * @return true if the surface was created successfully.
-         */
-        public boolean createSurface(SurfaceTexture surface) {
-            /*
-             * Check preconditions.
-             */
-            if (mEgl == null) {
-                throw new RuntimeException("egl not initialized");
-            }
-            if (mEglDisplay == null) {
-                throw new RuntimeException("eglDisplay not initialized");
-            }
-            if (mEglConfig == null) {
-                throw new RuntimeException("mEglConfig not initialized");
-            }
-
-            /*
-             *  The window size has changed, so we need to create a new
-             *  surface.
-             */
-            destroySurfaceImp();
-
-            /*
-             * Create an EGL surface we can render into.
-             */
-            if (surface != null) {
-                mEglSurface = mEgl.eglCreateWindowSurface(mEglDisplay, mEglConfig, surface, null);
-            } else {
-                mEglSurface = null;
-            }
-
-            if (mEglSurface == null || mEglSurface == EGL10.EGL_NO_SURFACE) {
-                int error = mEgl.eglGetError();
-                if (error == EGL10.EGL_BAD_NATIVE_WINDOW) {
-                    Log.e("EglHelper", "createWindowSurface returned EGL_BAD_NATIVE_WINDOW.");
-                }
-                return false;
-            }
-
-            /*
-             * Before we can issue GL commands, we need to make sure
-             * the context is current and bound to a surface.
-             */
-            if (!mEgl.eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext)) {
-                /*
-                 * Could not make the context current, probably because the underlying
-                 * SurfaceView surface has been destroyed.
-                 */
-                logEglErrorAsWarning("EGLHelper", "eglMakeCurrent", mEgl.eglGetError());
-                return false;
-            }
-
-            return true;
-        }
-
-        /**
-         * Create a GL object for the current EGL context.
-         */
-        public GL10 createGL() {
-            return (GL10) mEglContext.getGL();
-        }
-
-        /**
-         * Display the current render surface.
-         * @return the EGL error code from eglSwapBuffers.
-         */
-        public int swap() {
-            if (!mEgl.eglSwapBuffers(mEglDisplay, mEglSurface)) {
-                return mEgl.eglGetError();
-            }
-            return EGL10.EGL_SUCCESS;
-        }
-
-        public void destroySurface() {
-            destroySurfaceImp();
-        }
-
-        private void destroySurfaceImp() {
-            if (mEglSurface != null && mEglSurface != EGL10.EGL_NO_SURFACE) {
-                mEgl.eglMakeCurrent(mEglDisplay, EGL10.EGL_NO_SURFACE,
-                        EGL10.EGL_NO_SURFACE,
-                        EGL10.EGL_NO_CONTEXT);
-                mEgl.eglDestroySurface(mEglDisplay, mEglSurface);
-                mEglSurface = null;
-            }
-        }
-
-        public void finish() {
-            if (mEglContext != null) {
-                mEgl.eglDestroyContext(mEglDisplay, mEglContext);
-                mEglContext = null;
-            }
-            if (mEglDisplay != null) {
-                mEgl.eglTerminate(mEglDisplay);
-                mEglDisplay = null;
-            }
-        }
-
-        private void throwEglException(String function) {
-            throwEglException(function, mEgl.eglGetError());
-        }
-
-        public static void throwEglException(String function, int error) {
-            String message = formatEglError(function, error);
-            throw new RuntimeException(message);
-        }
-
-        public static void logEglErrorAsWarning(String tag, String function, int error) {
-            Log.w(tag, formatEglError(function, error));
-        }
-
-        public static String formatEglError(String function, int error) {
-            return function + " failed: " + error;
-        }
-
-    }
-
-    private static class RenderThread extends Thread {
-        private static final int INVALID = -1;
-        private static final int RENDER = 1;
-        private static final int CHANGE_SURFACE = 2;
-        private static final int RESIZE_SURFACE = 3;
-        private static final int FINISH = 4;
-
-        private EglHelper mEglHelper = new EglHelper();
-
-        private Object mLock = new Object();
-        private int mExecMsgId = INVALID;
-        private SurfaceTexture mSurface;
-        private Renderer mRenderer;
-        private int mWidth, mHeight;
-
-        private boolean mFinished = false;
-        private GL10 mGL;
-
-        public RenderThread(Renderer renderer) {
-            super("RenderThread");
-            mRenderer = renderer;
-            start();
-        }
-
-        private void checkRenderer() {
-            if (mRenderer == null) {
-                throw new IllegalArgumentException("Renderer is null!");
-            }
-        }
-
-        private void checkSurface() {
-            if (mSurface == null) {
-                throw new IllegalArgumentException("surface is null!");
-            }
-        }
-
-        public void setSurface(SurfaceTexture surface) {
-            // If the surface is null we're being torn down, don't need a
-            // renderer then
-            if (surface != null) {
-                checkRenderer();
-            }
-            mSurface = surface;
-            exec(CHANGE_SURFACE);
-        }
-
-        public void setSize(int width, int height) {
-            checkRenderer();
-            checkSurface();
-            mWidth = width;
-            mHeight = height;
-            exec(RESIZE_SURFACE);
-        }
-
-        public void render() {
-            checkRenderer();
-            if (mSurface != null) {
-                exec(RENDER);
-                mSurface.updateTexImage();
-            }
-        }
-
-        public void finish() {
-            mSurface = null;
-            exec(FINISH);
-            try {
-                join();
-            } catch (InterruptedException e) {
-                // Ignore
-            }
-        }
-
-        private void exec(int msgid) {
-            synchronized (mLock) {
-                if (mExecMsgId != INVALID) {
-                    throw new IllegalArgumentException(
-                            "Message already set - multithreaded access?");
-                }
-                mExecMsgId = msgid;
-                mLock.notify();
-                try {
-                    mLock.wait();
-                } catch (InterruptedException e) {
-                    // Ignore
-                }
-            }
-        }
-
-        private void handleMessageLocked(int what) {
-            switch (what) {
-            case CHANGE_SURFACE:
-                if (mEglHelper.createSurface(mSurface)) {
-                    mGL = mEglHelper.createGL();
-                    mRenderer.onSurfaceCreated(mGL, mEglHelper.mEglConfig);
-                }
-                break;
-            case RESIZE_SURFACE:
-                mRenderer.onSurfaceChanged(mGL, mWidth, mHeight);
-                break;
-            case RENDER:
-                mRenderer.onDrawFrame(mGL);
-                mEglHelper.swap();
-                break;
-            case FINISH:
-                mEglHelper.destroySurface();
-                mEglHelper.finish();
-                mFinished = true;
-                break;
-            }
-        }
-
-        @Override
-        public void run() {
-            synchronized (mLock) {
-                mEglHelper.start();
-                while (!mFinished) {
-                    while (mExecMsgId == INVALID) {
-                        try {
-                            mLock.wait();
-                        } catch (InterruptedException e) {
-                            // Ignore
-                        }
-                    }
-                    handleMessageLocked(mExecMsgId);
-                    mExecMsgId = INVALID;
-                    mLock.notify();
-                }
-                mExecMsgId = FINISH;
-            }
-        }
-    }
-}
diff --git a/WallpaperPicker/src/android/util/Pools.java b/WallpaperPicker/src/com/android/photos/views/Pools.java
similarity index 98%
rename from WallpaperPicker/src/android/util/Pools.java
rename to WallpaperPicker/src/com/android/photos/views/Pools.java
index 40bab1e..c60f2f0 100644
--- a/WallpaperPicker/src/android/util/Pools.java
+++ b/WallpaperPicker/src/com/android/photos/views/Pools.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package android.util;
+package com.android.photos.views;
 
 /**
  * Helper class for crating pools of objects. An example use looks like this:
diff --git a/WallpaperPicker/src/com/android/photos/views/TiledImageRenderer.java b/WallpaperPicker/src/com/android/photos/views/TiledImageRenderer.java
index b0292e6..f9b7ab4 100644
--- a/WallpaperPicker/src/com/android/photos/views/TiledImageRenderer.java
+++ b/WallpaperPicker/src/com/android/photos/views/TiledImageRenderer.java
@@ -23,8 +23,6 @@
 import android.util.DisplayMetrics;
 import android.util.Log;
 import android.util.LongSparseArray;
-import android.util.Pools.Pool;
-import android.util.Pools.SynchronizedPool;
 import android.view.View;
 import android.view.WindowManager;
 
@@ -32,6 +30,8 @@
 import com.android.gallery3d.glrenderer.BasicTexture;
 import com.android.gallery3d.glrenderer.GLCanvas;
 import com.android.gallery3d.glrenderer.UploadedTexture;
+import com.android.photos.views.Pools.Pool;
+import com.android.photos.views.Pools.SynchronizedPool;
 
 /**
  * Handles laying out, decoding, and drawing of tiles in GL
diff --git a/WallpaperPicker/src/com/android/photos/views/TiledImageView.java b/WallpaperPicker/src/com/android/photos/views/TiledImageView.java
index 94063b0..524fa2e 100644
--- a/WallpaperPicker/src/com/android/photos/views/TiledImageView.java
+++ b/WallpaperPicker/src/com/android/photos/views/TiledImageView.java
@@ -16,8 +16,6 @@
 
 package com.android.photos.views;
 
-import android.annotation.SuppressLint;
-import android.annotation.TargetApi;
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
@@ -28,11 +26,9 @@
 import android.graphics.RectF;
 import android.opengl.GLSurfaceView;
 import android.opengl.GLSurfaceView.Renderer;
-import android.os.Build;
 import android.util.AttributeSet;
 import android.view.Choreographer;
 import android.view.Choreographer.FrameCallback;
-import android.view.View;
 import android.widget.FrameLayout;
 
 import com.android.gallery3d.glrenderer.BasicTexture;
@@ -43,18 +39,10 @@
 import javax.microedition.khronos.opengles.GL10;
 
 /**
- * Shows an image using {@link TiledImageRenderer} using either {@link GLSurfaceView}
- * or {@link BlockingGLTextureView}.
+ * Shows an image using {@link TiledImageRenderer} using either {@link GLSurfaceView}.
  */
 public class TiledImageView extends FrameLayout {
 
-    private static final boolean USE_TEXTURE_VIEW = false;
-    private static final boolean IS_SUPPORTED =
-            Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN;
-    private static final boolean USE_CHOREOGRAPHER =
-            Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN;
-
-    private BlockingGLTextureView mTextureView;
     private GLSurfaceView mGLSurfaceView;
     private boolean mInvalPending = false;
     private FrameCallback mFrameCallback;
@@ -79,35 +67,19 @@
     protected Object mLock = new Object();
     protected ImageRendererWrapper mRenderer;
 
-    public static boolean isTilingSupported() {
-        return IS_SUPPORTED;
-    }
-
     public TiledImageView(Context context) {
         this(context, null);
     }
 
     public TiledImageView(Context context, AttributeSet attrs) {
         super(context, attrs);
-        if (!IS_SUPPORTED) {
-            return;
-        }
-
         mRenderer = new ImageRendererWrapper();
         mRenderer.image = new TiledImageRenderer(this);
-        View view;
-        if (USE_TEXTURE_VIEW) {
-            mTextureView = new BlockingGLTextureView(context);
-            mTextureView.setRenderer(new TileRenderer());
-            view = mTextureView;
-        } else {
-            mGLSurfaceView = new GLSurfaceView(context);
-            mGLSurfaceView.setEGLContextClientVersion(2);
-            mGLSurfaceView.setRenderer(new TileRenderer());
-            mGLSurfaceView.setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY);
-            view = mGLSurfaceView;
-        }
-        addView(view, new LayoutParams(
+        mGLSurfaceView = new GLSurfaceView(context);
+        mGLSurfaceView.setEGLContextClientVersion(2);
+        mGLSurfaceView.setRenderer(new TileRenderer());
+        mGLSurfaceView.setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY);
+        addView(mGLSurfaceView, new LayoutParams(
                 LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
         //setTileSource(new ColoredTiles());
     }
@@ -117,22 +89,11 @@
         super.setVisibility(visibility);
         // need to update inner view's visibility because it seems like we're causing it to draw
         // from {@link #dispatchDraw} or {@link #invalidate} even if we are invisible.
-        if (USE_TEXTURE_VIEW) {
-            mTextureView.setVisibility(visibility);
-        } else {
-            mGLSurfaceView.setVisibility(visibility);
-        }
+        mGLSurfaceView.setVisibility(visibility);
     }
 
     public void destroy() {
-        if (!IS_SUPPORTED) {
-            return;
-        }
-        if (USE_TEXTURE_VIEW) {
-            mTextureView.destroy();
-        } else {
-            mGLSurfaceView.queueEvent(mFreeTextures);
-        }
+        mGLSurfaceView.queueEvent(mFreeTextures);
     }
 
     private Runnable mFreeTextures = new Runnable() {
@@ -144,27 +105,14 @@
     };
 
     public void onPause() {
-        if (!IS_SUPPORTED) {
-            return;
-        }
-        if (!USE_TEXTURE_VIEW) {
-            mGLSurfaceView.onPause();
-        }
+        mGLSurfaceView.onPause();
     }
 
     public void onResume() {
-        if (!IS_SUPPORTED) {
-            return;
-        }
-        if (!USE_TEXTURE_VIEW) {
-            mGLSurfaceView.onResume();
-        }
+        mGLSurfaceView.onResume();
     }
 
     public void setTileSource(TileSource source, Runnable isReadyCallback) {
-        if (!IS_SUPPORTED) {
-            return;
-        }
         synchronized (mLock) {
             mRenderer.source = source;
             mRenderer.isReadyCallback = isReadyCallback;
@@ -181,9 +129,6 @@
     protected void onLayout(boolean changed, int left, int top, int right,
             int bottom) {
         super.onLayout(changed, left, top, right, bottom);
-        if (!IS_SUPPORTED) {
-            return;
-        }
         synchronized (mLock) {
             updateScaleIfNecessaryLocked(mRenderer);
         }
@@ -200,43 +145,10 @@
     }
 
     @Override
-    protected void dispatchDraw(Canvas canvas) {
-        if (!IS_SUPPORTED) {
-            return;
-        }
-        if (USE_TEXTURE_VIEW) {
-            mTextureView.render();
-        }
-        super.dispatchDraw(canvas);
-    }
-
-    @SuppressLint("NewApi")
-    @Override
-    public void setTranslationX(float translationX) {
-        if (!IS_SUPPORTED) {
-            return;
-        }
-        super.setTranslationX(translationX);
-    }
-
-    @Override
     public void invalidate() {
-        if (!IS_SUPPORTED) {
-            return;
-        }
-        if (USE_TEXTURE_VIEW) {
-            super.invalidate();
-            mTextureView.invalidate();
-        } else {
-            if (USE_CHOREOGRAPHER) {
-                invalOnVsync();
-            } else {
-                mGLSurfaceView.requestRender();
-            }
-        }
+        invalOnVsync();
     }
 
-    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
     private void invalOnVsync() {
         if (!mInvalPending) {
             mInvalPending = true;
@@ -255,9 +167,6 @@
 
     private RectF mTempRectF = new RectF();
     public void positionFromMatrix(Matrix matrix) {
-        if (!IS_SUPPORTED) {
-            return;
-        }
         if (mRenderer.source != null) {
             final int rotation = mRenderer.source.getRotation();
             final boolean swap = !(rotation % 180 == 0);
diff --git a/src/com/android/launcher3/Hotseat.java b/src/com/android/launcher3/Hotseat.java
index b08272f..289b08b 100644
--- a/src/com/android/launcher3/Hotseat.java
+++ b/src/com/android/launcher3/Hotseat.java
@@ -16,14 +16,12 @@
 
 package com.android.launcher3;
 
-import android.content.ComponentName;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
@@ -33,7 +31,6 @@
 import java.util.ArrayList;
 
 public class Hotseat extends FrameLayout {
-    private static final String TAG = "Hotseat";
 
     private CellLayout mContent;
 
@@ -182,38 +179,6 @@
         return false;
     }
 
-    void addAllAppsFolder(IconCache iconCache,
-            ArrayList<AppInfo> allApps, ArrayList<ComponentName> onWorkspace,
-            Launcher launcher, Workspace workspace) {
-        if (LauncherAppState.isDisableAllApps()) {
-            FolderInfo fi = new FolderInfo();
-
-            fi.cellX = getCellXFromOrder(mAllAppsButtonRank);
-            fi.cellY = getCellYFromOrder(mAllAppsButtonRank);
-            fi.spanX = 1;
-            fi.spanY = 1;
-            fi.container = LauncherSettings.Favorites.CONTAINER_HOTSEAT;
-            fi.screenId = mAllAppsButtonRank;
-            fi.itemType = LauncherSettings.Favorites.ITEM_TYPE_FOLDER;
-            fi.title = "More Apps";
-            LauncherModel.addItemToDatabase(launcher, fi, fi.container, fi.screenId, fi.cellX,
-                    fi.cellY, false);
-            FolderIcon folder = FolderIcon.fromXml(R.layout.folder_icon, launcher,
-                    getLayout(), fi, iconCache);
-            workspace.addInScreen(folder, fi.container, fi.screenId, fi.cellX, fi.cellY,
-                    fi.spanX, fi.spanY);
-
-            for (AppInfo info: allApps) {
-                ComponentName cn = info.intent.getComponent();
-                if (!onWorkspace.contains(cn)) {
-                    Log.d(TAG, "Adding to 'more apps': " + info.intent);
-                    ShortcutInfo si = info.makeShortcut();
-                    fi.add(si);
-                }
-            }
-        }
-    }
-
     void addAppsToAllAppsFolder(ArrayList<AppInfo> apps) {
         if (LauncherAppState.isDisableAllApps()) {
             View v = mContent.getChildAt(getCellXFromOrder(mAllAppsButtonRank), getCellYFromOrder(mAllAppsButtonRank));
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 61915b7..58b0854 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -95,6 +95,7 @@
 import android.widget.Advanceable;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
+import android.widget.TextView;
 import android.widget.Toast;
 
 import com.android.launcher3.DropTarget.DragObject;
@@ -115,6 +116,9 @@
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.text.DateFormat;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -227,8 +231,6 @@
     private static final int ON_ACTIVITY_RESULT_ANIMATION_DELAY = 500;
     private static final int ACTIVITY_START_DELAY = 1000;
 
-    private static final Object sLock = new Object();
-
     private HashMap<Integer, Integer> mItemIdToViewId = new HashMap<Integer, Integer>();
     private static final AtomicInteger sNextGeneratedId = new AtomicInteger(1);
 
@@ -306,6 +308,9 @@
 
     private View.OnTouchListener mHapticFeedbackTouchListener;
 
+    public static final int BUILD_LAYER = 0;
+    public static final int BUILD_AND_SET_LAYER = 1;
+
     // Related to the auto-advancing of widgets
     private final int ADVANCE_MSG = 1;
     private final int mAdvanceInterval = 20000;
@@ -335,8 +340,6 @@
     // it from the context.
     private SharedPreferences mSharedPrefs;
 
-    private static ArrayList<ComponentName> mIntentsOnWorkspaceFromUpgradePath = null;
-
     // Holds the page that we need to animate to, and the icon views that we need to animate up
     // when we scroll to that page on resume.
     private ImageView mFolderIconImageView;
@@ -356,6 +359,18 @@
         }
     }
 
+    // TODO: remove this field and call method directly when Launcher3 can depend on M APIs
+    private static Method sClipRevealMethod = null;
+    static {
+        Class<?> activityOptionsClass = ActivityOptions.class;
+        try {
+            sClipRevealMethod = activityOptionsClass.getDeclaredMethod("makeClipRevealAnimation",
+                    View.class, int.class, int.class, int.class, int.class);
+        } catch (Exception e) {
+            // Earlier version
+        }
+    }
+
     private Runnable mBuildLayersRunnable = new Runnable() {
         public void run() {
             if (mWorkspace != null) {
@@ -2894,9 +2909,41 @@
 
             Bundle optsBundle = null;
             if (useLaunchAnimation) {
-                ActivityOptions opts = Utilities.isLmpOrAbove() ?
-                        ActivityOptions.makeCustomAnimation(this, R.anim.task_open_enter, R.anim.no_anim) :
-                        ActivityOptions.makeScaleUpAnimation(v, 0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
+                ActivityOptions opts = null;
+                if (sClipRevealMethod != null) {
+                    // TODO: call method directly when Launcher3 can depend on M APIs
+                    int left = 0, top = 0;
+                    int width = v.getMeasuredWidth(), height = v.getMeasuredHeight();
+                    if (v instanceof TextView) {
+                        // Launch from center of icon, not entire view
+                        TextView tv = (TextView) v;
+                        Drawable[] drawables = tv.getCompoundDrawables();
+                        if (drawables != null && drawables[1] != null) {
+                            Rect bounds = drawables[1].getBounds();
+                            left = (width - bounds.width()) / 2;
+                            top = tv.getPaddingTop();
+                            width = bounds.width();
+                            height = bounds.height();
+                        }
+                    }
+                    try {
+                        opts = (ActivityOptions) sClipRevealMethod.invoke(null, v,
+                                left, top, width, height);
+                    } catch (IllegalAccessException e) {
+                        Log.d(TAG, "Could not call makeClipRevealAnimation: " + e);
+                        sClipRevealMethod = null;
+                    } catch (InvocationTargetException e) {
+                        Log.d(TAG, "Could not call makeClipRevealAnimation: " + e);
+                        sClipRevealMethod = null;
+                    }
+                }
+                if (opts == null) {
+                    opts = Utilities.isLmpOrAbove() ?
+                            ActivityOptions.makeCustomAnimation(this,
+                                    R.anim.task_open_enter, R.anim.no_anim) :
+                            ActivityOptions.makeScaleUpAnimation(v, 0, 0,
+                                    v.getMeasuredWidth(), v.getMeasuredHeight());
+                }
                 optsBundle = opts.toBundle();
             }
 
@@ -3291,7 +3338,7 @@
         final View fromView = mWorkspace;
         final AppsCustomizeTabHost toView = mAppsCustomizeTabHost;
 
-        final ArrayList<View> layerViews = new ArrayList<View>();
+        final HashMap<View, Integer> layerViews = new HashMap<View, Integer>();
 
         Workspace.State workspaceState = contentType == AppsCustomizePagedView.ContentType.Widgets ?
                 Workspace.State.OVERVIEW_HIDDEN : Workspace.State.NORMAL_HIDDEN;
@@ -3351,8 +3398,7 @@
             }
             final float initAlpha = alpha;
 
-            revealView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
-            layerViews.add(revealView);
+            layerViews.put(revealView, BUILD_AND_SET_LAYER);
             PropertyValuesHolder panelAlpha = PropertyValuesHolder.ofFloat("alpha", initAlpha, 1f);
             PropertyValuesHolder panelDriftY =
                     PropertyValuesHolder.ofFloat("translationY", yDrift, 0);
@@ -3369,8 +3415,7 @@
 
             if (page != null) {
                 page.setVisibility(View.VISIBLE);
-                page.setLayerType(View.LAYER_TYPE_HARDWARE, null);
-                layerViews.add(page);
+                layerViews.put(page, BUILD_AND_SET_LAYER);
 
                 ObjectAnimator pageDrift = ObjectAnimator.ofFloat(page, "translationY", yDrift, 0);
                 page.setTranslationY(yDrift);
@@ -3426,9 +3471,11 @@
                     dispatchOnLauncherTransitionEnd(toView, animated, false);
 
                     revealView.setVisibility(View.INVISIBLE);
-                    revealView.setLayerType(View.LAYER_TYPE_NONE, null);
-                    if (page != null) {
-                        page.setLayerType(View.LAYER_TYPE_NONE, null);
+
+                    for (View v : layerViews.keySet()) {
+                        if (layerViews.get(v) == BUILD_AND_SET_LAYER) {
+                            v.setLayerType(View.LAYER_TYPE_NONE, null);
+                        }
                     }
                     content.setPageBackgroundsVisible(true);
 
@@ -3460,12 +3507,16 @@
                     dispatchOnLauncherTransitionStart(toView, animated, false);
 
                     revealView.setAlpha(initAlpha);
+
+                    for (View v : layerViews.keySet()) {
+                        if (layerViews.get(v) == BUILD_AND_SET_LAYER) {
+                            v.setLayerType(View.LAYER_TYPE_HARDWARE, null);
+                        }
+                    }
+
                     if (Utilities.isLmpOrAbove()) {
-                        for (int i = 0; i < layerViews.size(); i++) {
-                            View v = layerViews.get(i);
-                            if (v != null) {
-                                if (Utilities.isViewAttachedToWindow(v)) v.buildLayer();
-                            }
+                        for (View v : layerViews.keySet()) {
+                            if (Utilities.isViewAttachedToWindow(v)) v.buildLayer();
                         }
                     }
                     mStateAnimation.start();
@@ -3521,7 +3572,7 @@
         final View fromView = mAppsCustomizeTabHost;
         final View toView = mWorkspace;
         Animator workspaceAnim = null;
-        final ArrayList<View> layerViews = new ArrayList<View>();
+        final HashMap<View, Integer> layerViews = new HashMap<View, Integer>();
 
         if (toState == Workspace.State.NORMAL) {
             workspaceAnim = mWorkspace.getChangeStateAnimation(
@@ -3593,7 +3644,7 @@
                     xDrift = 0;
                 }
 
-                revealView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
+                layerViews.put(revealView, BUILD_AND_SET_LAYER);
                 TimeInterpolator decelerateInterpolator = material ?
                         new LogDecelerateInterpolator(100, 0) :
                         new DecelerateInterpolator(1f);
@@ -3627,7 +3678,7 @@
                 }
 
                 if (page != null) {
-                    page.setLayerType(View.LAYER_TYPE_HARDWARE, null);
+                    layerViews.put(page, BUILD_AND_SET_LAYER);
 
                     ObjectAnimator pageDrift = LauncherAnimUtils.ofFloat(page, "translationY",
                             0, yDrift);
@@ -3695,10 +3746,12 @@
                         onCompleteRunnable.run();
                     }
 
-                    revealView.setLayerType(View.LAYER_TYPE_NONE, null);
-                    if (page != null) {
-                        page.setLayerType(View.LAYER_TYPE_NONE, null);
+                    for (View v : layerViews.keySet()) {
+                        if (layerViews.get(v) == BUILD_AND_SET_LAYER) {
+                            v.setLayerType(View.LAYER_TYPE_NONE, null);
+                        }
                     }
+
                     content.setPageBackgroundsVisible(true);
                     // Unhide side pages
                     int count = content.getChildCount();
@@ -3732,12 +3785,15 @@
                     dispatchOnLauncherTransitionStart(fromView, animated, false);
                     dispatchOnLauncherTransitionStart(toView, animated, false);
 
+                    for (View v : layerViews.keySet()) {
+                        if (layerViews.get(v) == BUILD_AND_SET_LAYER) {
+                            v.setLayerType(View.LAYER_TYPE_HARDWARE, null);
+                        }
+                    }
+
                     if (Utilities.isLmpOrAbove()) {
-                        for (int i = 0; i < layerViews.size(); i++) {
-                            View v = layerViews.get(i);
-                            if (v != null) {
-                                if (Utilities.isViewAttachedToWindow(v)) v.buildLayer();
-                            }
+                        for (View v : layerViews.keySet()) {
+                            if (Utilities.isViewAttachedToWindow(v)) v.buildLayer();
                         }
                     }
                     mStateAnimation.start();
@@ -4451,10 +4507,10 @@
      *
      * Implementation of the method from LauncherModel.Callbacks.
      */
-    public void finishBindingItems(final boolean upgradePath) {
+    public void finishBindingItems() {
         Runnable r = new Runnable() {
             public void run() {
-                finishBindingItems(upgradePath);
+                finishBindingItems();
             }
         };
         if (waitUntilResume(r)) {
@@ -4489,14 +4545,10 @@
             sPendingAddItem = null;
         }
 
-        if (upgradePath) {
-            mWorkspace.getUniqueComponents(true, null);
-            mIntentsOnWorkspaceFromUpgradePath = mWorkspace.getUniqueComponents(true, null);
-        }
         PackageInstallerCompat.getInstance(this).onFinishBind();
 
         if (mLauncherCallbacks != null) {
-            mLauncherCallbacks.finishBindingItems(upgradePath);
+            mLauncherCallbacks.finishBindingItems(false);
         }
     }
 
@@ -4563,13 +4615,6 @@
      */
     public void bindAllApplications(final ArrayList<AppInfo> apps) {
         if (LauncherAppState.isDisableAllApps()) {
-            if (mIntentsOnWorkspaceFromUpgradePath != null) {
-                if (LauncherModel.UPGRADE_USE_MORE_APPS_FOLDER) {
-                    getHotseat().addAllAppsFolder(mIconCache, apps,
-                            mIntentsOnWorkspaceFromUpgradePath, Launcher.this, mWorkspace);
-                }
-                mIntentsOnWorkspaceFromUpgradePath = null;
-            }
             if (mAppsCustomizeContent != null) {
                 mAppsCustomizeContent.onPackagesUpdated(
                         LauncherModel.getSortedWidgetsAndShortcuts(this));
@@ -4779,8 +4824,12 @@
 
     public void lockScreenOrientation() {
         if (Utilities.isRotationEnabled(this)) {
-            setRequestedOrientation(mapConfigurationOriActivityInfoOri(getResources()
-                    .getConfiguration().orientation));
+            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR2) {
+                setRequestedOrientation(mapConfigurationOriActivityInfoOri(getResources()
+                        .getConfiguration().orientation));
+            } else {
+                setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LOCKED);
+            }
         }
     }
     public void unlockScreenOrientation(boolean immediate) {
diff --git a/src/com/android/launcher3/LauncherAppWidgetHostView.java b/src/com/android/launcher3/LauncherAppWidgetHostView.java
index 2d04df2..954d2d7 100644
--- a/src/com/android/launcher3/LauncherAppWidgetHostView.java
+++ b/src/com/android/launcher3/LauncherAppWidgetHostView.java
@@ -145,9 +145,9 @@
     @Override
     public AppWidgetProviderInfo getAppWidgetInfo() {
         AppWidgetProviderInfo info = super.getAppWidgetInfo();
-        if (!(info instanceof LauncherAppWidgetProviderInfo)) {
+        if (info != null && !(info instanceof LauncherAppWidgetProviderInfo)) {
             throw new IllegalStateException("Launcher widget must have"
-                    + "LauncherAppWidgetProviderInfo");
+                    + " LauncherAppWidgetProviderInfo");
         }
         return info;
     }
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index 7879068..3983835 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -90,9 +90,6 @@
 
     static final String TAG = "Launcher.Model";
 
-    // true = use a "More Apps" folder for non-workspace apps on upgrade
-    // false = strew non-workspace apps across the workspace on upgrade
-    public static final boolean UPGRADE_USE_MORE_APPS_FOLDER = false;
     public static final int LOADER_FLAG_NONE = 0;
     public static final int LOADER_FLAG_CLEAR_WORKSPACE = 1 << 0;
     public static final int LOADER_FLAG_MIGRATE_SHORTCUTS = 1 << 1;
@@ -198,7 +195,7 @@
         public void bindScreens(ArrayList<Long> orderedScreenIds);
         public void bindAddScreens(ArrayList<Long> orderedScreenIds);
         public void bindFolders(HashMap<Long,FolderInfo> folders);
-        public void finishBindingItems(boolean upgradePath);
+        public void finishBindingItems();
         public void bindAppWidget(LauncherAppWidgetInfo info);
         public void bindAllApplications(ArrayList<AppInfo> apps);
         public void bindAppsAdded(ArrayList<Long> newScreens,
@@ -1501,8 +1498,7 @@
             return mIsLoadingAndBindingWorkspace;
         }
 
-        /** Returns whether this is an upgrade path */
-        private boolean loadAndBindWorkspace() {
+        private void loadAndBindWorkspace() {
             mIsLoadingAndBindingWorkspace = true;
 
             // Load the workspace
@@ -1510,20 +1506,18 @@
                 Log.d(TAG, "loadAndBindWorkspace mWorkspaceLoaded=" + mWorkspaceLoaded);
             }
 
-            boolean isUpgradePath = false;
             if (!mWorkspaceLoaded) {
-                isUpgradePath = loadWorkspace();
+                loadWorkspace();
                 synchronized (LoaderTask.this) {
                     if (mStopped) {
-                        return isUpgradePath;
+                        return;
                     }
                     mWorkspaceLoaded = true;
                 }
             }
 
             // Bind the workspace
-            bindWorkspace(-1, isUpgradePath);
-            return isUpgradePath;
+            bindWorkspace(-1);
         }
 
         private void waitForIdle() {
@@ -1592,15 +1586,13 @@
 
             // Divide the set of loaded items into those that we are binding synchronously, and
             // everything else that is to be bound normally (asynchronously).
-            bindWorkspace(synchronousBindPage, false);
+            bindWorkspace(synchronousBindPage);
             // XXX: For now, continue posting the binding of AllApps as there are other issues that
             //      arise from that.
             onlyBindAllApps();
         }
 
         public void run() {
-            boolean isUpgrade = false;
-
             synchronized (mLock) {
                 mIsLoaderTaskRunning = true;
             }
@@ -1617,7 +1609,7 @@
                             ? Process.THREAD_PRIORITY_DEFAULT : Process.THREAD_PRIORITY_BACKGROUND);
                 }
                 if (DEBUG_LOADERS) Log.d(TAG, "step 1: loading workspace");
-                isUpgrade = loadAndBindWorkspace();
+                loadAndBindWorkspace();
 
                 if (mStopped) {
                     break keep_running;
@@ -1655,9 +1647,7 @@
             if (LauncherAppState.isDisableAllApps()) {
                 // Ensure that all the applications that are in the system are
                 // represented on the home screen.
-                if (!UPGRADE_USE_MORE_APPS_FOLDER || !isUpgrade) {
-                    verifyApplications();
-                }
+                verifyApplications();
             }
 
             // Clear out this reference, otherwise we end up holding it until all of the
@@ -1834,8 +1824,7 @@
             }
         }
 
-        /** Returns whether this is an upgrade path */
-        private boolean loadWorkspace() {
+        private void loadWorkspace() {
             // Log to disk
             Launcher.addDumpLog(TAG, "11683562 - loadWorkspace()", true);
 
@@ -1869,12 +1858,6 @@
                 LauncherAppState.getLauncherProvider().loadDefaultFavoritesIfNecessary();
             }
 
-            // This code path is for our old migration code and should no longer be exercised
-            boolean loadedOldDb = false;
-
-            // Log to disk
-            Launcher.addDumpLog(TAG, "11683562 -   loadedOldDb: " + loadedOldDb, true);
-
             synchronized (sBgLock) {
                 clearSBgDataStructures();
                 final HashSet<String> installingPkgs = PackageInstallerCompat
@@ -2347,7 +2330,7 @@
                 // Break early if we've stopped loading
                 if (mStopped) {
                     clearSBgDataStructures();
-                    return false;
+                    return;
                 }
 
                 if (itemsToRemove.size() > 0) {
@@ -2393,60 +2376,29 @@
                             null, sWorker);
                 }
 
-                if (loadedOldDb) {
-                    long maxScreenId = 0;
-                    // If we're importing we use the old screen order.
-                    for (ItemInfo item: sBgItemsIdMap.values()) {
-                        long screenId = item.screenId;
-                        if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP &&
-                                !sBgWorkspaceScreens.contains(screenId)) {
-                            sBgWorkspaceScreens.add(screenId);
-                            if (screenId > maxScreenId) {
-                                maxScreenId = screenId;
-                            }
-                        }
-                    }
-                    Collections.sort(sBgWorkspaceScreens);
-                    // Log to disk
-                    Launcher.addDumpLog(TAG, "11683562 -   maxScreenId: " + maxScreenId, true);
-                    Launcher.addDumpLog(TAG, "11683562 -   sBgWorkspaceScreens: " +
-                            TextUtils.join(", ", sBgWorkspaceScreens), true);
+                sBgWorkspaceScreens.addAll(loadWorkspaceScreensDb(mContext));
+                // Log to disk
+                Launcher.addDumpLog(TAG, "11683562 -   sBgWorkspaceScreens: " +
+                        TextUtils.join(", ", sBgWorkspaceScreens), true);
 
-                    LauncherAppState.getLauncherProvider().updateMaxScreenId(maxScreenId);
+                // Remove any empty screens
+                ArrayList<Long> unusedScreens = new ArrayList<Long>(sBgWorkspaceScreens);
+                for (ItemInfo item: sBgItemsIdMap.values()) {
+                    long screenId = item.screenId;
+                    if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP &&
+                            unusedScreens.contains(screenId)) {
+                        unusedScreens.remove(screenId);
+                    }
+                }
+
+                // If there are any empty screens remove them, and update.
+                if (unusedScreens.size() != 0) {
+                    // Log to disk
+                    Launcher.addDumpLog(TAG, "11683562 -   unusedScreens (to be removed): " +
+                            TextUtils.join(", ", unusedScreens), true);
+
+                    sBgWorkspaceScreens.removeAll(unusedScreens);
                     updateWorkspaceScreenOrder(context, sBgWorkspaceScreens);
-
-                    // Update the max item id after we load an old db
-                    long maxItemId = 0;
-                    // If we're importing we use the old screen order.
-                    for (ItemInfo item: sBgItemsIdMap.values()) {
-                        maxItemId = Math.max(maxItemId, item.id);
-                    }
-                    LauncherAppState.getLauncherProvider().updateMaxItemId(maxItemId);
-                } else {
-                    sBgWorkspaceScreens.addAll(loadWorkspaceScreensDb(mContext));
-                    // Log to disk
-                    Launcher.addDumpLog(TAG, "11683562 -   sBgWorkspaceScreens: " +
-                            TextUtils.join(", ", sBgWorkspaceScreens), true);
-
-                    // Remove any empty screens
-                    ArrayList<Long> unusedScreens = new ArrayList<Long>(sBgWorkspaceScreens);
-                    for (ItemInfo item: sBgItemsIdMap.values()) {
-                        long screenId = item.screenId;
-                        if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP &&
-                                unusedScreens.contains(screenId)) {
-                            unusedScreens.remove(screenId);
-                        }
-                    }
-
-                    // If there are any empty screens remove them, and update.
-                    if (unusedScreens.size() != 0) {
-                        // Log to disk
-                        Launcher.addDumpLog(TAG, "11683562 -   unusedScreens (to be removed): " +
-                                TextUtils.join(", ", unusedScreens), true);
-
-                        sBgWorkspaceScreens.removeAll(unusedScreens);
-                        updateWorkspaceScreenOrder(context, sBgWorkspaceScreens);
-                    }
                 }
 
                 if (DEBUG_LOADERS) {
@@ -2475,7 +2427,6 @@
                     }
                 }
             }
-            return loadedOldDb;
         }
 
         /**
@@ -2683,7 +2634,7 @@
         /**
          * Binds all loaded data to actual views on the main thread.
          */
-        private void bindWorkspace(int synchronizeBindPage, final boolean isUpgradePath) {
+        private void bindWorkspace(int synchronizeBindPage) {
             final long t = SystemClock.uptimeMillis();
             Runnable r;
 
@@ -2787,7 +2738,7 @@
                 public void run() {
                     Callbacks callbacks = tryGetCallbacks(oldCallbacks);
                     if (callbacks != null) {
-                        callbacks.finishBindingItems(isUpgradePath);
+                        callbacks.finishBindingItems();
                     }
 
                     // If we're profiling, ensure this is the last thing in the queue.
@@ -3868,7 +3819,7 @@
                 labelB = mLabelCache.get(b);
             } else {
                 labelB = (b instanceof LauncherAppWidgetProviderInfo)
-                        ? mManager.loadLabel((LauncherAppWidgetProviderInfo) a)
+                        ? mManager.loadLabel((LauncherAppWidgetProviderInfo) b)
                         : ((ResolveInfo) b).loadLabel(mPackageManager).toString().trim();
                 mLabelCache.put(b, labelB);
             }
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index 196f57c..ab1347b 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -65,7 +65,6 @@
     static final String TABLE_FAVORITES = "favorites";
     static final String TABLE_WORKSPACE_SCREENS = "workspaceScreens";
     static final String PARAMETER_NOTIFY = "notify";
-    static final String UPGRADED_FROM_OLD_DATABASE = "UPGRADED_FROM_OLD_DATABASE";
     static final String EMPTY_DATABASE_CREATED = "EMPTY_DATABASE_CREATED";
 
     private static final String URI_PARAM_IS_EXTERNAL_ADD = "isExternalAdd";
@@ -250,12 +249,6 @@
         return mOpenHelper.generateNewScreenId();
     }
 
-    // This is only required one time while loading the workspace during the
-    // upgrade path, and should never be called from anywhere else.
-    public void updateMaxScreenId(long maxScreenId) {
-        mOpenHelper.updateMaxScreenId(maxScreenId);
-    }
-
     /**
      * Clears all the data for a fresh start.
      */
@@ -473,19 +466,13 @@
         private void setFlagJustLoadedOldDb() {
             String spKey = LauncherAppState.getSharedPreferencesKey();
             SharedPreferences sp = mContext.getSharedPreferences(spKey, Context.MODE_PRIVATE);
-            SharedPreferences.Editor editor = sp.edit();
-            editor.putBoolean(UPGRADED_FROM_OLD_DATABASE, true);
-            editor.putBoolean(EMPTY_DATABASE_CREATED, false);
-            editor.commit();
+            sp.edit().putBoolean(EMPTY_DATABASE_CREATED, false).commit();
         }
 
         private void setFlagEmptyDbCreated() {
             String spKey = LauncherAppState.getSharedPreferencesKey();
             SharedPreferences sp = mContext.getSharedPreferences(spKey, Context.MODE_PRIVATE);
-            SharedPreferences.Editor editor = sp.edit();
-            editor.putBoolean(EMPTY_DATABASE_CREATED, true);
-            editor.putBoolean(UPGRADED_FROM_OLD_DATABASE, false);
-            editor.commit();
+            sp.edit().putBoolean(EMPTY_DATABASE_CREATED, true).commit();
         }
 
         @Override
@@ -620,7 +607,8 @@
                         new String[] {Integer.toString(LauncherSettings.Favorites.ITEM_TYPE_FOLDER)});
 
                 while (c.moveToNext()) {
-                    db.execSQL("UPDATE favorites SET rank=cellX+(cellY*?) WHERE container=?;",
+                    db.execSQL("UPDATE favorites SET rank=cellX+(cellY*?) WHERE "
+                            + "container=? AND cellX IS NOT NULL AND cellY IS NOT NULL;",
                             new Object[] {c.getLong(1) + 1, c.getLong(0)});
                 }
 
@@ -726,12 +714,6 @@
             return mMaxScreenId;
         }
 
-        public void updateMaxScreenId(long maxScreenId) {
-            // Log to disk
-            Launcher.addDumpLog(TAG, "11683562 - updateMaxScreenId(): " + maxScreenId, true);
-            mMaxScreenId = maxScreenId;
-        }
-
         private long initializeMaxScreenId(SQLiteDatabase db) {
             Cursor c = db.rawQuery("SELECT MAX(" + LauncherSettings.WorkspaceScreens._ID + ") FROM " + TABLE_WORKSPACE_SCREENS, null);
 
diff --git a/src/com/android/launcher3/UninstallShortcutReceiver.java b/src/com/android/launcher3/UninstallShortcutReceiver.java
index ccea4ec..c9d0bb5 100644
--- a/src/com/android/launcher3/UninstallShortcutReceiver.java
+++ b/src/com/android/launcher3/UninstallShortcutReceiver.java
@@ -104,7 +104,9 @@
             try {
                 while (c.moveToNext()) {
                     try {
-                        if (intent.filterEquals(Intent.parseUri(c.getString(intentIndex), 0))) {
+                        String intentStr = c.getString(intentIndex);
+                        if (intentStr != null
+                                && intent.filterEquals(Intent.parseUri(intentStr, 0))) {
                             final long id = c.getLong(idIndex);
                             final Uri uri = LauncherSettings.Favorites.getContentUri(id, false);
                             cr.delete(uri, null, null);
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 66e370b..1a4afe8 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -43,7 +43,6 @@
 import android.graphics.Rect;
 import android.graphics.Region.Op;
 import android.graphics.drawable.Drawable;
-import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Handler;
 import android.os.IBinder;
@@ -560,10 +559,6 @@
     }
 
     public long insertNewWorkspaceScreen(long screenId, int insertIndex) {
-        // Log to disk
-        Launcher.addDumpLog(TAG, "11683562 - insertNewWorkspaceScreen(): " + screenId +
-                " at index: " + insertIndex, true);
-
         if (mWorkspaceScreens.containsKey(screenId)) {
             throw new RuntimeException("Screen id " + screenId + " already exists!");
         }
@@ -663,9 +658,6 @@
     }
 
     public void addExtraEmptyScreenOnDrag() {
-        // Log to disk
-        Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreenOnDrag()", true);
-
         boolean lastChildOnScreen = false;
         boolean childOnFinalScreen = false;
 
@@ -692,9 +684,6 @@
     }
 
     public boolean addExtraEmptyScreen() {
-        // Log to disk
-        Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreen()", true);
-
         if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) {
             insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID);
             return true;
@@ -703,9 +692,6 @@
     }
 
     private void convertFinalScreenToEmptyScreenIfNecessary() {
-        // Log to disk
-        Launcher.addDumpLog(TAG, "11683562 - convertFinalScreenToEmptyScreenIfNecessary()", true);
-
         if (mLauncher.isWorkspaceLoading()) {
             // Invalid and dangerous operation if workspace is loading
             Launcher.addDumpLog(TAG, "    - workspace loading, skip", true);
@@ -730,7 +716,6 @@
 
             // Update the model if we have changed any screens
             mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder);
-            Launcher.addDumpLog(TAG, "11683562 -   extra empty screen: " + finalScreenId, true);
         }
     }
 
@@ -740,8 +725,6 @@
 
     public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete,
             final int delay, final boolean stripEmptyScreens) {
-        // Log to disk
-        Launcher.addDumpLog(TAG, "11683562 - removeExtraEmptyScreen()", true);
         if (mLauncher.isWorkspaceLoading()) {
             // Don't strip empty screens if the workspace is still loading
             Launcher.addDumpLog(TAG, "    - workspace loading, skip", true);
@@ -783,9 +766,7 @@
 
     private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete,
             final boolean stripEmptyScreens) {
-        // Log to disk
         // XXX: Do we need to update LM workspace screens below?
-        Launcher.addDumpLog(TAG, "11683562 - fadeAndRemoveEmptyScreen()", true);
         PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f);
         PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f);
 
@@ -829,8 +810,6 @@
     }
 
     public long commitExtraEmptyScreen() {
-        // Log to disk
-        Launcher.addDumpLog(TAG, "11683562 - commitExtraEmptyScreen()", true);
         if (mLauncher.isWorkspaceLoading()) {
             // Invalid and dangerous operation if workspace is loading
             Launcher.addDumpLog(TAG, "    - workspace loading, skip", true);
@@ -889,9 +868,6 @@
     }
 
     public void stripEmptyScreens() {
-        // Log to disk
-        Launcher.addDumpLog(TAG, "11683562 - stripEmptyScreens()", true);
-
         if (mLauncher.isWorkspaceLoading()) {
             // Don't strip empty screens if the workspace is still loading.
             // This is dangerous and can result in data loss.
@@ -919,7 +895,6 @@
 
         int pageShift = 0;
         for (Long id: removeScreens) {
-            Launcher.addDumpLog(TAG, "11683562 -   removing id: " + id, true);
             CellLayout cl = mWorkspaceScreens.get(id);
             mWorkspaceScreens.remove(id);
             mScreenOrder.remove(id);
@@ -2090,7 +2065,7 @@
     }
 
     Animator getChangeStateAnimation(final State state, boolean animated,
-            ArrayList<View> layerViews) {
+            HashMap<View, Integer> layerViews) {
         return getChangeStateAnimation(state, animated, 0, -1, layerViews);
     }
 
@@ -2221,7 +2196,7 @@
     }
 
     Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage,
-            ArrayList<View> layerViews) {
+            HashMap<View, Integer> layerViews) {
         if (mState == state) {
             return null;
         }
@@ -2351,7 +2326,7 @@
                     cl.setShortcutAndWidgetAlpha(mNewAlphas[i]);
                 } else {
                     if (layerViews != null) {
-                        layerViews.add(cl);
+                        layerViews.put(cl, Launcher.BUILD_LAYER);
                     }
                     if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) {
                         LauncherViewPropertyAnimator alphaAnim =
@@ -2388,12 +2363,12 @@
                 pageIndicatorAlpha = ValueAnimator.ofFloat(0, 0);
             }
 
-            Animator hotseatAlpha = new LauncherViewPropertyAnimator(hotseat)
-                .alpha(finalHotseatAndPageIndicatorAlpha).withLayer();
+            LauncherViewPropertyAnimator hotseatAlpha = new LauncherViewPropertyAnimator(hotseat)
+                .alpha(finalHotseatAndPageIndicatorAlpha);
             hotseatAlpha.addListener(new AlphaUpdateListener(hotseat));
 
-            Animator overviewPanelAlpha = new LauncherViewPropertyAnimator(overviewPanel)
-                .alpha(finalOverviewPanelAlpha).withLayer();
+            LauncherViewPropertyAnimator overviewPanelAlpha =
+                    new LauncherViewPropertyAnimator(overviewPanel).alpha(finalOverviewPanelAlpha);
             overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel));
 
             // For animation optimations, we may need to provide the Launcher transition
@@ -2401,8 +2376,14 @@
             hotseat.setLayerType(View.LAYER_TYPE_HARDWARE, null);
             overviewPanel.setLayerType(View.LAYER_TYPE_HARDWARE, null);
             if (layerViews != null) {
-                layerViews.add(hotseat);
-                layerViews.add(overviewPanel);
+                // If layerViews is not null, we add these views, and indicate that
+                // the caller can manage layer state.
+                layerViews.put(hotseat, Launcher.BUILD_AND_SET_LAYER);
+                layerViews.put(overviewPanel, Launcher.BUILD_AND_SET_LAYER);
+            } else {
+                // Otherwise let the animator handle layer management.
+                hotseatAlpha.withLayer();
+                overviewPanelAlpha.withLayer();
             }
 
             if (workspaceToOverview) {
@@ -2420,12 +2401,17 @@
             hotseatAlpha.setDuration(duration);
 
             if (searchBar != null) {
-                Animator searchBarAlpha = new LauncherViewPropertyAnimator(searchBar)
-                    .alpha(finalSearchBarAlpha).withLayer();
+                LauncherViewPropertyAnimator searchBarAlpha = new LauncherViewPropertyAnimator(searchBar)
+                    .alpha(finalSearchBarAlpha);
                 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar));
                 searchBar.setLayerType(View.LAYER_TYPE_HARDWARE, null);
                 if (layerViews != null) {
-                    layerViews.add(searchBar);
+                    // If layerViews is not null, we add these views, and indicate that
+                    // the caller can manage layer state.
+                    layerViews.put(searchBar, Launcher.BUILD_AND_SET_LAYER);
+                } else {
+                    // Otherwise let the animator handle layer management.
+                    searchBarAlpha.withLayer();
                 }
                 searchBarAlpha.setDuration(duration);
                 anim.play(searchBarAlpha);
@@ -3165,9 +3151,8 @@
                         // in its final location
 
                         final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell;
-                        LauncherAppWidgetProviderInfo pInfo = (LauncherAppWidgetProviderInfo)
-                                hostView.getAppWidgetInfo();
-                        if (pInfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) {
+                        AppWidgetProviderInfo pInfo = hostView.getAppWidgetInfo();
+                        if (pInfo != null && pInfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) {
                             final Runnable addResizeFrame = new Runnable() {
                                 public void run() {
                                     DragLayer dragLayer = mLauncher.getDragLayer();
@@ -4104,7 +4089,6 @@
 
         // In the case where we've prebound the widget, we remove it from the DragLayer
         if (finalView instanceof AppWidgetHostView && external) {
-            Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView");
             mLauncher.getDragLayer().removeView(finalView);
         }
 
@@ -4295,88 +4279,6 @@
         }
     }
 
-    ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) {
-        ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>();
-        getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false);
-        int count = getChildCount();
-        for (int i = 0; i < count; i++) {
-            CellLayout cl = (CellLayout) getChildAt(i);
-            getUniqueIntents(cl, uniqueIntents, duplicates, false);
-        }
-        return uniqueIntents;
-    }
-
-    void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents,
-            ArrayList<ComponentName> duplicates, boolean stripDuplicates) {
-        int count = cl.getShortcutsAndWidgets().getChildCount();
-
-        ArrayList<View> children = new ArrayList<View>();
-        for (int i = 0; i < count; i++) {
-            View v = cl.getShortcutsAndWidgets().getChildAt(i);
-            children.add(v);
-        }
-
-        for (int i = 0; i < count; i++) {
-            View v = children.get(i);
-            ItemInfo info = (ItemInfo) v.getTag();
-            // Null check required as the AllApps button doesn't have an item info
-            if (info instanceof ShortcutInfo) {
-                ShortcutInfo si = (ShortcutInfo) info;
-                ComponentName cn = si.intent.getComponent();
-
-                Uri dataUri = si.intent.getData();
-                // If dataUri is not null / empty or if this component isn't one that would
-                // have previously showed up in the AllApps list, then this is a widget-type
-                // shortcut, so ignore it.
-                if (dataUri != null && !dataUri.equals(Uri.EMPTY)) {
-                    continue;
-                }
-
-                if (!uniqueIntents.contains(cn)) {
-                    uniqueIntents.add(cn);
-                } else {
-                    if (stripDuplicates) {
-                        cl.removeViewInLayout(v);
-                        LauncherModel.deleteItemFromDatabase(mLauncher, si);
-                    }
-                    if (duplicates != null) {
-                        duplicates.add(cn);
-                    }
-                }
-            }
-            if (v instanceof FolderIcon) {
-                FolderIcon fi = (FolderIcon) v;
-                ArrayList<View> items = fi.getFolder().getItemsInReadingOrder();
-                for (int j = 0; j < items.size(); j++) {
-                    if (items.get(j).getTag() instanceof ShortcutInfo) {
-                        ShortcutInfo si = (ShortcutInfo) items.get(j).getTag();
-                        ComponentName cn = si.intent.getComponent();
-
-                        Uri dataUri = si.intent.getData();
-                        // If dataUri is not null / empty or if this component isn't one that would
-                        // have previously showed up in the AllApps list, then this is a widget-type
-                        // shortcut, so ignore it.
-                        if (dataUri != null && !dataUri.equals(Uri.EMPTY)) {
-                            continue;
-                        }
-
-                        if (!uniqueIntents.contains(cn)) {
-                            uniqueIntents.add(cn);
-                        }  else {
-                            if (stripDuplicates) {
-                                fi.getFolderInfo().remove(si);
-                                LauncherModel.deleteItemFromDatabase(mLauncher, si);
-                            }
-                            if (duplicates != null) {
-                                duplicates.add(cn);
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-
     void saveWorkspaceToDb() {
         saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout());
         int count = getChildCount();
diff --git a/src/com/android/launcher3/compat/LauncherActivityInfoCompatV16.java b/src/com/android/launcher3/compat/LauncherActivityInfoCompatV16.java
index 1d41a6f..ea51aac 100644
--- a/src/com/android/launcher3/compat/LauncherActivityInfoCompatV16.java
+++ b/src/com/android/launcher3/compat/LauncherActivityInfoCompatV16.java
@@ -29,13 +29,15 @@
 
 
 public class LauncherActivityInfoCompatV16 extends LauncherActivityInfoCompat {
-    private ActivityInfo mActivityInfo;
-    private ComponentName mComponentName;
-    private PackageManager mPm;
+    private final ResolveInfo mResolveInfo;
+    private final ActivityInfo mActivityInfo;
+    private final ComponentName mComponentName;
+    private final PackageManager mPm;
 
     LauncherActivityInfoCompatV16(Context context, ResolveInfo info) {
         super();
-        this.mActivityInfo = info.activityInfo;
+        mResolveInfo = info;
+        mActivityInfo = info.activityInfo;
         mComponentName = new ComponentName(mActivityInfo.packageName, mActivityInfo.name);
         mPm = context.getPackageManager();
     }
@@ -49,31 +51,30 @@
     }
 
     public CharSequence getLabel() {
-        return mActivityInfo.loadLabel(mPm);
+        return mResolveInfo.loadLabel(mPm);
     }
 
     public Drawable getIcon(int density) {
-        Drawable d = null;
-        if (mActivityInfo.getIconResource() != 0) {
-            Resources resources;
+        int iconRes = mResolveInfo.getIconResource();
+        Resources resources = null;
+        Drawable icon = null;
+        // Get the preferred density icon from the app's resources
+        if (density != 0 && iconRes != 0) {
             try {
-                resources = mPm.getResourcesForApplication(mActivityInfo.packageName);
-            } catch (PackageManager.NameNotFoundException e) {
-                resources = null;
-            }
-            if (resources != null) {
-                try {
-                    d = resources.getDrawableForDensity(mActivityInfo.getIconResource(), density);
-                } catch (Resources.NotFoundException e) {
-                    // Return default icon below.
-                }
+                resources = mPm.getResourcesForApplication(mActivityInfo.applicationInfo);
+                icon = resources.getDrawableForDensity(iconRes, density);
+            } catch (NameNotFoundException | Resources.NotFoundException exc) {
             }
         }
-        if (d == null) {
-            Resources resources = Resources.getSystem();
-            d = resources.getDrawableForDensity(android.R.mipmap.sym_def_app_icon, density);
+        // Get the default density icon
+        if (icon == null) {
+            icon = mResolveInfo.loadIcon(mPm);
         }
-        return d;
+        if (icon == null) {
+            resources = Resources.getSystem();
+            icon = resources.getDrawableForDensity(android.R.mipmap.sym_def_app_icon, density);
+        }
+        return icon;
     }
 
     public ApplicationInfo getApplicationInfo() {