Update Wallpaper picker and fix bug
-Fixed b/3271838
-On a phone, Fragment would not remember its
previous state and crash on rotation
Change-Id: Ida923fba0c7f4622b090e2838fd932328ad68c63
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 247f5b7..6cdf205 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -86,10 +86,10 @@
<activity
android:name="com.android.launcher2.WallpaperChooser"
+ style="@style/config_orientation"
android:label="@string/pick_wallpaper"
android:icon="@drawable/ic_launcher_wallpaper"
android:theme="@style/Theme.WallpaperPicker"
- android:screenOrientation="nosensor"
android:finishOnCloseSystemDialogs="true">
<intent-filter>
<action android:name="android.intent.action.SET_WALLPAPER" />
diff --git a/res/layout-xlarge/wallpaper_chooser.xml b/res/layout-xlarge/wallpaper_chooser.xml
index 9649e88..76a896d 100644
--- a/res/layout-xlarge/wallpaper_chooser.xml
+++ b/res/layout-xlarge/wallpaper_chooser.xml
@@ -20,8 +20,11 @@
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/gallery"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:numColumns="4"
- android:columnWidth="@dimen/wallpaper_small_width"
- android:stretchMode="columnWidth" />
\ No newline at end of file
+ android:layout_width="match_parent"
+ android:layout_height="400dp"
+ android:layout_gravity="center"
+ android:numColumns="3"
+ android:stretchMode="spacingWidth"
+ android:columnWidth="@dimen/wallpaper_chooser_grid_width"
+ android:verticalSpacing="15dp"
+ android:drawSelectorOnTop="false" />
diff --git a/res/layout-xlarge/wallpaper_chooser_base.xml b/res/layout-xlarge/wallpaper_chooser_base.xml
new file mode 100644
index 0000000..16888ec
--- /dev/null
+++ b/res/layout-xlarge/wallpaper_chooser_base.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+**
+** Copyright 2010, 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.
+*/
+-->
+
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent" />
diff --git a/res/layout-xlarge/wallpaper_item.xml b/res/layout-xlarge/wallpaper_item.xml
index 4246b9a..e17c046 100644
--- a/res/layout-xlarge/wallpaper_item.xml
+++ b/res/layout-xlarge/wallpaper_item.xml
@@ -15,9 +15,9 @@
-->
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
- android:layout_width="@dimen/wallpaper_small_width"
- android:layout_height="wrap_content"
- android:padding="5dp"
+ android:layout_width="match_parent"
+ android:layout_height="@dimen/wallpaper_chooser_grid_height"
+ android:padding="6dp"
android:scaleType="fitXY"
android:adjustViewBounds="false"
android:focusable="false" />
diff --git a/res/layout/wallpaper_chooser_base.xml b/res/layout/wallpaper_chooser_base.xml
index 8447027..fa8ea93 100644
--- a/res/layout/wallpaper_chooser_base.xml
+++ b/res/layout/wallpaper_chooser_base.xml
@@ -19,7 +19,10 @@
-->
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
- android:id="@+id/wallpaper_chooser_base"
android:layout_width="match_parent"
android:layout_height="match_parent">
+ <fragment class="com.android.launcher2.WallpaperChooserDialogFragment"
+ android:id="@+id/wallpaper_chooser_fragment"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent" />
</FrameLayout>
diff --git a/res/values-xlarge/config.xml b/res/values-xlarge/config.xml
index 55a96f6..c254eb3 100644
--- a/res/values-xlarge/config.xml
+++ b/res/values-xlarge/config.xml
@@ -51,4 +51,8 @@
<!-- The slope, in percent, of the drag movement needed to drag an item out of the customization
drawer (y / x * 100%) -->
<integer name="config_customizationDrawerDragSlopeThreshold">150</integer>
+
+ <style name="config_orientation">
+ <item name="@android:screenOrientation">unspecified</item>
+ </style>
</resources>
diff --git a/res/values-xlarge/dimens.xml b/res/values-xlarge/dimens.xml
index a9ba1d5..89722e4 100644
--- a/res/values-xlarge/dimens.xml
+++ b/res/values-xlarge/dimens.xml
@@ -51,5 +51,6 @@
<dimen name="delete_zone_padding">20dip</dimen>
<!-- dimensions for the wallpaper picker wallpaper thumbnail width -->
- <dimen name="wallpaper_small_width">170dp</dimen>
+ <dimen name="wallpaper_chooser_grid_width">230dp</dimen>
+ <dimen name="wallpaper_chooser_grid_height">185dp</dimen>
</resources>
diff --git a/res/values/config.xml b/res/values/config.xml
index 9350ad1..473ed58 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -32,4 +32,8 @@
<!-- The distance at which the animation should take the max duration -->
<integer name="config_dropAnimMaxDist">800</integer>
+
+ <style name="config_orientation">
+ <item name="@android:screenOrientation">nosensor</item>
+ </style>
</resources>
diff --git a/src/com/android/launcher2/WallpaperChooser.java b/src/com/android/launcher2/WallpaperChooser.java
index 0a8d9f4..2311d1e 100644
--- a/src/com/android/launcher2/WallpaperChooser.java
+++ b/src/com/android/launcher2/WallpaperChooser.java
@@ -16,309 +16,29 @@
package com.android.launcher2;
-import android.app.Activity;
-import android.app.AlertDialog;
-import android.app.Dialog;
-import android.app.DialogFragment;
-import android.app.FragmentTransaction;
-import android.app.WallpaperManager;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.content.res.Resources;
-import android.graphics.BitmapFactory;
-import android.graphics.Bitmap;
-import android.graphics.drawable.Drawable;
-import android.os.Bundle;
-import android.os.AsyncTask;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.view.View.OnClickListener;
-import android.widget.AdapterView;
-import android.widget.BaseAdapter;
-import android.widget.Gallery;
-import android.widget.GridView;
-import android.widget.ImageView;
-import android.widget.ListAdapter;
-import android.widget.SpinnerAdapter;
-
-import java.io.IOException;
-import java.util.ArrayList;
-
import com.android.launcher.R;
+import android.app.Activity;
+import android.app.DialogFragment;
+import android.app.Fragment;
+import android.os.Bundle;
+
public class WallpaperChooser extends Activity {
private static final String TAG = "Launcher.WallpaperChooser";
- private ViewGroup mWallpaperChooserBase;
- private ImageView mImageView = null;
- private Bitmap mBitmap = null;
-
- private ArrayList<Integer> mThumbs;
- private ArrayList<Integer> mImages;
- private WallpaperLoader mLoader;
-
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
- /* We need some container to attach to in order for the fragment to be
- * considered embedded, so inflate an empty FrameLayout and use that
- * as the parent view
- */
setContentView(R.layout.wallpaper_chooser_base);
- mWallpaperChooserBase = (ViewGroup) findViewById(R.id.wallpaper_chooser_base);
- findWallpapers();
-
- DialogFragment newFragment = new WallpaperDialogFragment(this);
- if (LauncherApplication.isScreenXLarge()) {
- // Display a dialog instead of embedding the view in the activity
- newFragment.show(getFragmentManager(), "dialog");
- } else {
- // Embed the fragment in the base view
- FragmentTransaction ft = getFragmentManager().openTransaction();
- ft.add(R.id.wallpaper_chooser_base, newFragment);
- ft.commit();
- }
- }
-
- @Override
- protected void onDestroy() {
- super.onDestroy();
-
- if (mLoader != null && mLoader.getStatus() != WallpaperLoader.Status.FINISHED) {
- mLoader.cancel(true);
- mLoader = null;
- }
- }
-
- private void findWallpapers() {
- mThumbs = new ArrayList<Integer>(24);
- mImages = new ArrayList<Integer>(24);
-
- final Resources resources = getResources();
- // Context.getPackageName() may return the "original" package name,
- // com.android.launcher2; Resources needs the real package name,
- // com.android.launcher. So we ask Resources for what it thinks the
- // package name should be.
- final String packageName = resources.getResourcePackageName(R.array.wallpapers);
-
- addWallpapers(resources, packageName, R.array.wallpapers);
- addWallpapers(resources, packageName, R.array.extra_wallpapers);
- }
-
- private void addWallpapers(Resources resources, String packageName, int list) {
- final String[] extras = resources.getStringArray(list);
- for (String extra : extras) {
- int res = resources.getIdentifier(extra, "drawable", packageName);
- if (res != 0) {
- final int thumbRes = resources.getIdentifier(extra + "_small",
- "drawable", packageName);
-
- if (thumbRes != 0) {
- mThumbs.add(thumbRes);
- mImages.add(res);
- // Log.d(TAG, "addWallpapers: [" + packageName + "]: " + extra + " (" + res + ")");
- }
- }
- }
- }
-
- private void selectWallpaper(int position) {
- try {
- WallpaperManager wpm = (WallpaperManager)getSystemService(WALLPAPER_SERVICE);
- wpm.setResource(mImages.get(position));
- setResult(RESULT_OK);
- finish();
- } catch (IOException e) {
- Log.e(TAG, "Failed to set wallpaper: " + e);
- }
- }
-
- private class WallpaperDialogFragment extends DialogFragment implements
- AdapterView.OnItemSelectedListener, AdapterView.OnItemClickListener {
- private Context mContext;
-
- public WallpaperDialogFragment(Context context) {
- super();
- mContext = context;
- setCancelable(true);
- }
-
- @Override
- public void onDismiss(DialogInterface dialog) {
- WallpaperChooser.this.finish();
- }
-
- /* This will only be called when in XLarge mode, since this Fragment is invoked like
- * a dialog in that mode
- */
- @Override
- public Dialog onCreateDialog(Bundle savedInstanceState) {
- final View v = getLayoutInflater().inflate(
- R.layout.wallpaper_chooser, mWallpaperChooserBase, false);
-
- GridView gridView = (GridView) v.findViewById(R.id.gallery);
- gridView.setOnItemClickListener(this);
- gridView.setAdapter(new ImageAdapter(WallpaperChooser.this));
-
- final int viewInset =
- getResources().getDimensionPixelSize(R.dimen.alert_dialog_content_inset);
-
- AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
- builder.setCancelable(true);
- builder.setNegativeButton(R.string.wallpaper_cancel, null);
- builder.setTitle(R.string.wallpaper_dialog_title);
- builder.setView(gridView, viewInset, viewInset, viewInset, viewInset);
- return builder.create();
- }
-
- /* This will be called on both XLarge and small screens, but since the dialog
- * is already created on XLarge, we want to skip this view creation
- */
- @Override
- public View onCreateView(LayoutInflater inflater, ViewGroup container,
- Bundle savedInstanceState) {
- /* Only generate a custom view if this fragment is being embedded in a view,
- * i.e: on a small screen
+ Fragment fragmentView =
+ getFragmentManager().findFragmentById(R.id.wallpaper_chooser_fragment);
+ if (fragmentView == null) {
+ /* When the screen is XLarge, the fragment is not included in the layout, so show it
+ * as a dialog
*/
- if (!LauncherApplication.isScreenXLarge()) {
- View view = inflater.inflate(R.layout.wallpaper_chooser, container, false);
-
- final Gallery gallery = (Gallery) view.findViewById(R.id.gallery);
- gallery.setCallbackDuringFling(false);
- gallery.setOnItemSelectedListener(this);
- gallery.setAdapter(new ImageAdapter(WallpaperChooser.this));
-
- View setButton = view.findViewById(R.id.set);
- setButton.setOnClickListener(new OnClickListener() {
- @Override
- public void onClick(View v) {
- selectWallpaper(gallery.getSelectedItemPosition());
- }
- });
- mImageView = (ImageView) view.findViewById(R.id.wallpaper);
- return view;
- }
- return super.onCreateView(inflater, container, savedInstanceState);
- }
-
- // Click handler for the Dialog's GridView
- @Override
- public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
- selectWallpaper(position);
- }
-
- // Selection handler for the embedded Gallery view
- @Override
- public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
- if (mLoader != null && mLoader.getStatus() != WallpaperLoader.Status.FINISHED) {
- mLoader.cancel();
- }
- mLoader = (WallpaperLoader) new WallpaperLoader().execute(position);
- }
-
- @Override
- public void onNothingSelected(AdapterView<?> parent) {
- }
- }
-
- private class ImageAdapter extends BaseAdapter implements ListAdapter, SpinnerAdapter {
- private LayoutInflater mLayoutInflater;
-
- ImageAdapter(WallpaperChooser context) {
- mLayoutInflater = context.getLayoutInflater();
- }
-
- public int getCount() {
- return mThumbs.size();
- }
-
- public Object getItem(int position) {
- return position;
- }
-
- public long getItemId(int position) {
- return position;
- }
-
- public View getView(int position, View convertView, ViewGroup parent) {
- ImageView image;
-
- if (convertView == null) {
- image = (ImageView) mLayoutInflater.inflate(R.layout.wallpaper_item, parent, false);
- } else {
- image = (ImageView) convertView;
- }
-
- int thumbRes = mThumbs.get(position);
- image.setImageResource(thumbRes);
- Drawable thumbDrawable = image.getDrawable();
- if (thumbDrawable != null) {
- thumbDrawable.setDither(true);
- } else {
- Log.e(TAG, "Error decoding thumbnail resId=" + thumbRes + " for wallpaper #"
- + position);
- }
-
- return image;
- }
- }
-
- class WallpaperLoader extends AsyncTask<Integer, Void, Bitmap> {
- BitmapFactory.Options mOptions;
-
- WallpaperLoader() {
- mOptions = new BitmapFactory.Options();
- mOptions.inDither = false;
- mOptions.inPreferredConfig = Bitmap.Config.ARGB_8888;
- }
-
- @Override
- protected Bitmap doInBackground(Integer... params) {
- if (isCancelled()) return null;
- try {
- return BitmapFactory.decodeResource(getResources(),
- mImages.get(params[0]), mOptions);
- } catch (OutOfMemoryError e) {
- return null;
- }
- }
-
- @Override
- protected void onPostExecute(Bitmap b) {
- if (b == null) return;
-
- if (!isCancelled() && !mOptions.mCancel) {
- // Help the GC
- if (mBitmap != null) {
- mBitmap.recycle();
- }
-
- // This should always be the case, but check anyways
- final ImageView view = mImageView;
- if (view != null) {
- view.setImageBitmap(b);
-
- mBitmap = b;
-
- final Drawable drawable = view.getDrawable();
- drawable.setFilterBitmap(true);
- drawable.setDither(true);
-
- view.postInvalidate();
- }
-
- mLoader = null;
- } else {
- b.recycle();
- }
- }
-
- void cancel() {
- mOptions.requestCancelDecode();
- super.cancel(true);
+ DialogFragment fragment = WallpaperChooserDialogFragment.newInstance();
+ fragment.show(getFragmentManager(), "dialog");
}
}
}
diff --git a/src/com/android/launcher2/WallpaperChooserDialogFragment.java b/src/com/android/launcher2/WallpaperChooserDialogFragment.java
new file mode 100644
index 0000000..10bfc56
--- /dev/null
+++ b/src/com/android/launcher2/WallpaperChooserDialogFragment.java
@@ -0,0 +1,321 @@
+/*
+ * Copyright (C) 2010 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.launcher2;
+
+import com.android.launcher.R;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.DialogFragment;
+import android.app.WallpaperManager;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.drawable.Drawable;
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.BaseAdapter;
+import android.widget.Gallery;
+import android.widget.GridView;
+import android.widget.ImageView;
+import android.widget.ListAdapter;
+import android.widget.SpinnerAdapter;
+
+import java.io.IOException;
+import java.util.ArrayList;
+
+public class WallpaperChooserDialogFragment extends DialogFragment implements
+ AdapterView.OnItemSelectedListener, AdapterView.OnItemClickListener {
+
+ private static final String TAG = "Launcher.WallpaperChooserDialogFragment";
+ private static final String EMBEDDED_KEY = "com.android.launcher2."
+ + "WallpaperChooserDialogFragment.EMBEDDED_KEY";
+
+ private boolean mEmbedded;
+ private ImageView mImageView = null;
+ private Bitmap mBitmap = null;
+
+ private ArrayList<Integer> mThumbs;
+ private ArrayList<Integer> mImages;
+ private WallpaperLoader mLoader;
+
+ public static WallpaperChooserDialogFragment newInstance() {
+ WallpaperChooserDialogFragment fragment = new WallpaperChooserDialogFragment();
+ fragment.setCancelable(true);
+ return fragment;
+ }
+
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ if (savedInstanceState != null && savedInstanceState.containsKey(EMBEDDED_KEY)) {
+ mEmbedded = savedInstanceState.getBoolean(EMBEDDED_KEY);
+ } else {
+ mEmbedded = isInLayout();
+ }
+ }
+
+ @Override
+ public void onSaveInstanceState(Bundle outState) {
+ outState.putBoolean(EMBEDDED_KEY, mEmbedded);
+ }
+
+ @Override
+ public void onDestroy() {
+ super.onDestroy();
+
+ if (mLoader != null && mLoader.getStatus() != WallpaperLoader.Status.FINISHED) {
+ mLoader.cancel(true);
+ mLoader = null;
+ }
+ }
+
+ @Override
+ public void onDismiss(DialogInterface dialog) {
+ super.onDismiss(dialog);
+ /* On orientation changes, the dialog is effectively "dismissed" so this is called
+ * when the activity is no longer associated with this dying dialog fragment. We
+ * should just safely ignore this case by checking if getActivity() returns null
+ */
+ Activity activity = getActivity();
+ if (activity != null) {
+ activity.finish();
+ }
+ }
+
+ /* This will only be called when in XLarge mode, since this Fragment is invoked like
+ * a dialog in that mode
+ */
+ @Override
+ public Dialog onCreateDialog(Bundle savedInstanceState) {
+ final View v = getActivity().getLayoutInflater().inflate(
+ R.layout.wallpaper_chooser, null, false);
+
+ GridView gridView = (GridView) v.findViewById(R.id.gallery);
+ gridView.setOnItemClickListener(this);
+ gridView.setAdapter(new ImageAdapter(getActivity()));
+
+ final int viewInset =
+ getResources().getDimensionPixelSize(R.dimen.alert_dialog_content_inset);
+
+ AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
+ builder.setNegativeButton(R.string.wallpaper_cancel, null);
+ builder.setTitle(R.string.wallpaper_dialog_title);
+ builder.setView(gridView, viewInset, viewInset, viewInset, viewInset);
+ return builder.create();
+ }
+
+ @Override
+ public View onCreateView(LayoutInflater inflater, ViewGroup container,
+ Bundle savedInstanceState) {
+ findWallpapers();
+
+ /* If this fragment is embedded in the layout of this activity, then we should
+ * generate a view to display. Otherwise, a dialog will be created in
+ * onCreateDialog()
+ */
+ if (mEmbedded) {
+ View view = inflater.inflate(R.layout.wallpaper_chooser, container, false);
+
+ final Gallery gallery = (Gallery) view.findViewById(R.id.gallery);
+ gallery.setCallbackDuringFling(false);
+ gallery.setOnItemSelectedListener(this);
+ gallery.setAdapter(new ImageAdapter(getActivity()));
+
+ View setButton = view.findViewById(R.id.set);
+ setButton.setOnClickListener(new OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ selectWallpaper(gallery.getSelectedItemPosition());
+ }
+ });
+ mImageView = (ImageView) view.findViewById(R.id.wallpaper);
+ return view;
+ }
+ return null;
+ }
+
+ private void selectWallpaper(int position) {
+ try {
+ WallpaperManager wpm = (WallpaperManager) getActivity().getSystemService(
+ Context.WALLPAPER_SERVICE);
+ wpm.setResource(mImages.get(position));
+ Activity activity = getActivity();
+ activity.setResult(Activity.RESULT_OK);
+ activity.finish();
+ } catch (IOException e) {
+ Log.e(TAG, "Failed to set wallpaper: " + e);
+ }
+ }
+
+ // Click handler for the Dialog's GridView
+ @Override
+ public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+ selectWallpaper(position);
+ }
+
+ // Selection handler for the embedded Gallery view
+ @Override
+ public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+ if (mLoader != null && mLoader.getStatus() != WallpaperLoader.Status.FINISHED) {
+ mLoader.cancel();
+ }
+ mLoader = (WallpaperLoader) new WallpaperLoader().execute(position);
+ }
+
+ @Override
+ public void onNothingSelected(AdapterView<?> parent) {
+ }
+
+ private void findWallpapers() {
+ mThumbs = new ArrayList<Integer>(24);
+ mImages = new ArrayList<Integer>(24);
+
+ final Resources resources = getResources();
+ // Context.getPackageName() may return the "original" package name,
+ // com.android.launcher2; Resources needs the real package name,
+ // com.android.launcher. So we ask Resources for what it thinks the
+ // package name should be.
+ final String packageName = resources.getResourcePackageName(R.array.wallpapers);
+
+ addWallpapers(resources, packageName, R.array.wallpapers);
+ addWallpapers(resources, packageName, R.array.extra_wallpapers);
+ }
+
+ private void addWallpapers(Resources resources, String packageName, int list) {
+ final String[] extras = resources.getStringArray(list);
+ for (String extra : extras) {
+ int res = resources.getIdentifier(extra, "drawable", packageName);
+ if (res != 0) {
+ final int thumbRes = resources.getIdentifier(extra + "_small",
+ "drawable", packageName);
+
+ if (thumbRes != 0) {
+ mThumbs.add(thumbRes);
+ mImages.add(res);
+ // Log.d(TAG, "add: [" + packageName + "]: " + extra + " (" + res + ")");
+ }
+ }
+ }
+ }
+
+ private class ImageAdapter extends BaseAdapter implements ListAdapter, SpinnerAdapter {
+ private LayoutInflater mLayoutInflater;
+
+ ImageAdapter(Activity activity) {
+ mLayoutInflater = activity.getLayoutInflater();
+ }
+
+ public int getCount() {
+ return mThumbs.size();
+ }
+
+ public Object getItem(int position) {
+ return position;
+ }
+
+ public long getItemId(int position) {
+ return position;
+ }
+
+ public View getView(int position, View convertView, ViewGroup parent) {
+ ImageView image;
+
+ if (convertView == null) {
+ image = (ImageView) mLayoutInflater.inflate(R.layout.wallpaper_item, parent, false);
+ } else {
+ image = (ImageView) convertView;
+ }
+
+ int thumbRes = mThumbs.get(position);
+ image.setImageResource(thumbRes);
+ Drawable thumbDrawable = image.getDrawable();
+ if (thumbDrawable != null) {
+ thumbDrawable.setDither(true);
+ } else {
+ Log.e(TAG, "Error decoding thumbnail resId=" + thumbRes + " for wallpaper #"
+ + position);
+ }
+
+ return image;
+ }
+ }
+
+ class WallpaperLoader extends AsyncTask<Integer, Void, Bitmap> {
+ BitmapFactory.Options mOptions;
+
+ WallpaperLoader() {
+ mOptions = new BitmapFactory.Options();
+ mOptions.inDither = false;
+ mOptions.inPreferredConfig = Bitmap.Config.ARGB_8888;
+ }
+
+ @Override
+ protected Bitmap doInBackground(Integer... params) {
+ if (isCancelled()) return null;
+ try {
+ return BitmapFactory.decodeResource(getResources(),
+ mImages.get(params[0]), mOptions);
+ } catch (OutOfMemoryError e) {
+ return null;
+ }
+ }
+
+ @Override
+ protected void onPostExecute(Bitmap b) {
+ if (b == null) return;
+
+ if (!isCancelled() && !mOptions.mCancel) {
+ // Help the GC
+ if (mBitmap != null) {
+ mBitmap.recycle();
+ }
+
+ // This should always be the case, but check anyways
+ final ImageView view = mImageView;
+ if (view != null) {
+ view.setImageBitmap(b);
+
+ mBitmap = b;
+
+ final Drawable drawable = view.getDrawable();
+ drawable.setFilterBitmap(true);
+ drawable.setDither(true);
+
+ view.postInvalidate();
+ }
+
+ mLoader = null;
+ } else {
+ b.recycle();
+ }
+ }
+
+ void cancel() {
+ mOptions.requestCancelDecode();
+ super.cancel(true);
+ }
+ }
+}
\ No newline at end of file