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The Android Open Source Project31dd5032009-03-03 19:32:27 -08001/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
Daniel Sandler325dc232013-06-05 22:57:57 -040017package com.android.launcher3;
The Android Open Source Project31dd5032009-03-03 19:32:27 -080018
Sunny Goyalfafca522014-11-03 11:30:01 -080019import android.annotation.TargetApi;
Michael Jurkaa805e1a2013-08-22 15:00:33 +020020import android.app.Activity;
Sunny Goyal594d76d2014-11-06 10:12:54 -080021import android.app.SearchManager;
Sunny Goyal1ed6c4a2016-04-21 15:16:11 -070022import android.app.WallpaperManager;
Sunny Goyal594d76d2014-11-06 10:12:54 -080023import android.appwidget.AppWidgetManager;
24import android.appwidget.AppWidgetProviderInfo;
Michael Jurkaa805e1a2013-08-22 15:00:33 +020025import android.content.ActivityNotFoundException;
Sunny Goyalc5c60ad2014-07-14 12:02:01 -070026import android.content.ComponentName;
Winson Chungaafa03c2010-06-11 17:34:16 -070027import android.content.Context;
Michael Jurkaa805e1a2013-08-22 15:00:33 +020028import android.content.Intent;
Rahul Chaturvedi7fc77ca2015-05-19 18:02:16 -070029import android.content.SharedPreferences;
Sunny Goyalc5c60ad2014-07-14 12:02:01 -070030import android.content.pm.ApplicationInfo;
31import android.content.pm.PackageInfo;
32import android.content.pm.PackageManager;
33import android.content.pm.PackageManager.NameNotFoundException;
34import android.content.pm.ResolveInfo;
Winson Chungaafa03c2010-06-11 17:34:16 -070035import android.content.res.Resources;
Sunny Goyal4fbc3822015-02-18 16:46:50 -080036import android.database.Cursor;
The Android Open Source Project31dd5032009-03-03 19:32:27 -080037import android.graphics.Bitmap;
Sunny Goyal4fbc3822015-02-18 16:46:50 -080038import android.graphics.BitmapFactory;
The Android Open Source Project31dd5032009-03-03 19:32:27 -080039import android.graphics.Canvas;
Sunny Goyal95abbb32014-08-04 10:53:22 -070040import android.graphics.Color;
Winson Chungc763c4e2013-07-19 13:49:06 -070041import android.graphics.Matrix;
The Android Open Source Project31dd5032009-03-03 19:32:27 -080042import android.graphics.Paint;
Joe Onoratobf15cb42009-08-07 14:33:40 -070043import android.graphics.PaintFlagsDrawFilter;
The Android Open Source Project31dd5032009-03-03 19:32:27 -080044import android.graphics.Rect;
Winson Chungaafa03c2010-06-11 17:34:16 -070045import android.graphics.drawable.BitmapDrawable;
46import android.graphics.drawable.Drawable;
47import android.graphics.drawable.PaintDrawable;
Sandeep Siddhartha2efc7d92014-05-16 17:21:15 -070048import android.os.Build;
Sunny Goyal1ed6c4a2016-04-21 15:16:11 -070049import android.os.Build.VERSION_CODES;
Sunny Goyal4e5cc642015-06-25 16:37:44 -070050import android.os.Bundle;
Tony Wickham112ac952015-11-12 12:31:50 -080051import android.os.PowerManager;
Sunny Goyale78e3d72015-09-24 11:23:31 -070052import android.text.Spannable;
53import android.text.SpannableString;
Sunny Goyal5c97f512015-05-19 16:03:28 -070054import android.text.TextUtils;
Sunny Goyale78e3d72015-09-24 11:23:31 -070055import android.text.style.TtsSpan;
Adam Cohen2e6da152015-05-06 11:42:25 -070056import android.util.DisplayMetrics;
Michael Jurkaa805e1a2013-08-22 15:00:33 +020057import android.util.Log;
Sunny Goyal0fe505b2014-08-06 09:55:36 -070058import android.util.Pair;
Sunny Goyal95abbb32014-08-04 10:53:22 -070059import android.util.SparseArray;
Adam Cohen2e6da152015-05-06 11:42:25 -070060import android.util.TypedValue;
Winson Chungc763c4e2013-07-19 13:49:06 -070061import android.view.View;
Michael Jurkaa805e1a2013-08-22 15:00:33 +020062import android.widget.Toast;
Sunny Goyalb1622cc2015-06-10 16:00:42 -070063
Sunny Goyalb84046d2015-10-19 14:03:30 -070064import com.android.launcher3.compat.UserHandleCompat;
Sunny Goyald896ee42015-12-17 11:24:31 -080065import com.android.launcher3.config.FeatureFlags;
Sunny Goyalfc218302015-09-17 14:59:10 -070066import com.android.launcher3.util.IconNormalizer;
Sunny Goyal6c56c682015-07-16 14:09:05 -070067
Sunny Goyal5b0e6692015-03-19 14:31:19 -070068import java.io.ByteArrayOutputStream;
69import java.io.IOException;
Sunny Goyal25aba0a2015-07-16 15:07:47 -070070import java.lang.reflect.Method;
Winson Chungc763c4e2013-07-19 13:49:06 -070071import java.util.ArrayList;
Sunny Goyalb1622cc2015-06-10 16:00:42 -070072import java.util.Locale;
Sunny Goyal4e5cc642015-06-25 16:37:44 -070073import java.util.Set;
Sunny Goyal8ac727b2015-09-23 15:38:09 -070074import java.util.concurrent.Executor;
75import java.util.concurrent.LinkedBlockingQueue;
76import java.util.concurrent.ThreadPoolExecutor;
77import java.util.concurrent.TimeUnit;
Winson Chung82b016c2015-05-08 17:00:10 -070078import java.util.regex.Matcher;
79import java.util.regex.Pattern;
The Android Open Source Project31dd5032009-03-03 19:32:27 -080080
81/**
82 * Various utilities shared amongst the Launcher's classes.
83 */
Mathew Inwood72fbec12013-11-19 15:45:07 +000084public final class Utilities {
Rahul Chaturvedi7fc77ca2015-05-19 18:02:16 -070085
Joe Onorato1291a8c2009-09-15 15:07:25 -040086 private static final String TAG = "Launcher.Utilities";
87
The Android Open Source Project31dd5032009-03-03 19:32:27 -080088 private static final Rect sOldBounds = new Rect();
Romain Guy89911d22009-09-28 18:48:49 -070089 private static final Canvas sCanvas = new Canvas();
The Android Open Source Project31dd5032009-03-03 19:32:27 -080090
Winson Chung82b016c2015-05-08 17:00:10 -070091 private static final Pattern sTrimPattern =
92 Pattern.compile("^[\\s|\\p{javaSpaceChar}]*(.*)[\\s|\\p{javaSpaceChar}]*$");
93
The Android Open Source Project31dd5032009-03-03 19:32:27 -080094 static {
95 sCanvas.setDrawFilter(new PaintFlagsDrawFilter(Paint.DITHER_FLAG,
96 Paint.FILTER_BITMAP_FLAG));
97 }
Joe Onorato6665c0f2009-09-02 15:27:24 -070098 static int sColors[] = { 0xffff0000, 0xff00ff00, 0xff0000ff };
99 static int sColorIndex = 0;
100
Sunny Goyal53d7ee42015-05-22 12:25:45 -0700101 private static final int[] sLoc0 = new int[2];
102 private static final int[] sLoc1 = new int[2];
Michael Jurka7ad868b2013-12-12 15:04:25 +0100103
Sunny Goyal9fc953b2015-08-17 12:24:25 -0700104 // TODO: use Build.VERSION_CODES when available
105 public static final boolean ATLEAST_MARSHMALLOW = Build.VERSION.SDK_INT >= 23;
106
107 public static final boolean ATLEAST_LOLLIPOP_MR1 =
108 Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1;
109
110 public static final boolean ATLEAST_LOLLIPOP =
111 Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
112
113 public static final boolean ATLEAST_KITKAT =
114 Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
115
116 public static final boolean ATLEAST_JB_MR1 =
117 Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1;
118
119 public static final boolean ATLEAST_JB_MR2 =
120 Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2;
121
Sunny Goyal6f866092016-03-17 17:04:15 -0700122 // An intent extra to indicate the horizontal scroll of the wallpaper.
123 public static final String EXTRA_WALLPAPER_OFFSET = "com.android.launcher3.WALLPAPER_OFFSET";
124
Sunny Goyal8ac727b2015-09-23 15:38:09 -0700125 // These values are same as that in {@link AsyncTask}.
126 private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
127 private static final int CORE_POOL_SIZE = CPU_COUNT + 1;
128 private static final int MAXIMUM_POOL_SIZE = CPU_COUNT * 2 + 1;
129 private static final int KEEP_ALIVE = 1;
130 /**
131 * An {@link Executor} to be used with async task with no limit on the queue size.
132 */
133 public static final Executor THREAD_POOL_EXECUTOR = new ThreadPoolExecutor(
134 CORE_POOL_SIZE, MAXIMUM_POOL_SIZE, KEEP_ALIVE,
135 TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>());
136
Rahul Chaturvedi7fc77ca2015-05-19 18:02:16 -0700137 public static final String ALLOW_ROTATION_PREFERENCE_KEY = "pref_allowRotation";
138
Sunny Goyal4bbf4192014-11-11 12:23:59 -0800139 public static boolean isPropertyEnabled(String propertyName) {
Michael Jurka7ad868b2013-12-12 15:04:25 +0100140 return Log.isLoggable(propertyName, Log.VERBOSE);
141 }
142
Sunny Goyal21bf5312015-08-21 11:08:24 -0700143 public static boolean isAllowRotationPrefEnabled(Context context) {
Sunny Goyal8f3819b2016-02-23 14:49:22 -0800144 boolean allowRotationPref = false;
145 if (isNycOrAbove()) {
146 // If the device was scaled, used the original dimensions to determine if rotation
147 // is allowed of not.
148 try {
149 // TODO: Use the actual field when the API is finalized.
150 int originalDensity =
151 DisplayMetrics.class.getField("DENSITY_DEVICE_STABLE").getInt(null);
152 Resources res = context.getResources();
153 int originalSmallestWidth = res.getConfiguration().smallestScreenWidthDp
154 * res.getDisplayMetrics().densityDpi / originalDensity;
155 allowRotationPref = originalSmallestWidth >= 600;
156 } catch (Exception e) {
157 // Ignore
158 }
159 }
Rahul Chaturvedi7fc77ca2015-05-19 18:02:16 -0700160
Sunny Goyal8f3819b2016-02-23 14:49:22 -0800161 return getPrefs(context).getBoolean(ALLOW_ROTATION_PREFERENCE_KEY, allowRotationPref);
Michael Jurka7ad868b2013-12-12 15:04:25 +0100162 }
163
Vadim Tryshev9de91272015-08-03 18:37:17 -0700164 public static boolean isNycOrAbove() {
165 // TODO(vadimt): Replace using reflection with looking at the API version once
166 // Build.VERSION.SDK_INT gets bumped to 24. b/22942492.
167 try {
168 View.class.getDeclaredField("DRAG_FLAG_OPAQUE");
169 // View.DRAG_FLAG_OPAQUE doesn't exist in M-release, so it's an indication of N+.
170 return true;
171 } catch (NoSuchFieldException e) {
172 return false;
173 }
174 }
175
Sunny Goyal745bad92016-05-02 10:54:12 -0700176 // TODO: Use Intent.ACTION_APPLICATION_PREFERENCES when N SDK is available.
177 public static final String ACTION_APPLICATION_PREFERENCES
178 = "android.intent.action.APPLICATION_PREFERENCES";
179
Sunny Goyal53d7ee42015-05-22 12:25:45 -0700180 public static Bitmap createIconBitmap(Cursor c, int iconIndex, Context context) {
Sunny Goyal4fbc3822015-02-18 16:46:50 -0800181 byte[] data = c.getBlob(iconIndex);
182 try {
183 return createIconBitmap(BitmapFactory.decodeByteArray(data, 0, data.length), context);
184 } catch (Exception e) {
185 return null;
186 }
187 }
188
Sandeep Siddhartha2efc7d92014-05-16 17:21:15 -0700189 /**
Sunny Goyalb50cc8c2014-10-06 16:23:56 -0700190 * Returns a bitmap suitable for the all apps view. If the package or the resource do not
191 * exist, it returns null.
192 */
Sunny Goyal53d7ee42015-05-22 12:25:45 -0700193 public static Bitmap createIconBitmap(String packageName, String resourceName,
Sunny Goyalb50cc8c2014-10-06 16:23:56 -0700194 Context context) {
195 PackageManager packageManager = context.getPackageManager();
196 // the resource
197 try {
198 Resources resources = packageManager.getResourcesForApplication(packageName);
199 if (resources != null) {
200 final int id = resources.getIdentifier(resourceName, null, null);
201 return createIconBitmap(
Sunny Goyal53d7ee42015-05-22 12:25:45 -0700202 resources.getDrawableForDensity(id, LauncherAppState.getInstance()
203 .getInvariantDeviceProfile().fillResIconDpi), context);
Sunny Goyalb50cc8c2014-10-06 16:23:56 -0700204 }
205 } catch (Exception e) {
206 // Icon not found.
207 }
208 return null;
209 }
210
Sunny Goyal53d7ee42015-05-22 12:25:45 -0700211 private static int getIconBitmapSize() {
212 return LauncherAppState.getInstance().getInvariantDeviceProfile().iconBitmapSize;
213 }
214
Sunny Goyalb50cc8c2014-10-06 16:23:56 -0700215 /**
Sunny Goyal2fce90c2014-10-07 12:01:58 -0700216 * Returns a bitmap which is of the appropriate size to be displayed as an icon
Michael Jurka931dc972011-08-05 15:08:15 -0700217 */
Sunny Goyal53d7ee42015-05-22 12:25:45 -0700218 public static Bitmap createIconBitmap(Bitmap icon, Context context) {
219 final int iconBitmapSize = getIconBitmapSize();
220 if (iconBitmapSize == icon.getWidth() && iconBitmapSize == icon.getHeight()) {
Sunny Goyal2fce90c2014-10-07 12:01:58 -0700221 return icon;
222 }
223 return createIconBitmap(new BitmapDrawable(context.getResources(), icon), context);
Michael Jurka931dc972011-08-05 15:08:15 -0700224 }
225
226 /**
Sunny Goyalfc218302015-09-17 14:59:10 -0700227 * Returns a bitmap suitable for the all apps view. The icon is badged for {@param user}.
228 * The bitmap is also visually normalized with other icons.
Sunny Goyalb84046d2015-10-19 14:03:30 -0700229 */
230 @TargetApi(Build.VERSION_CODES.LOLLIPOP)
231 public static Bitmap createBadgedIconBitmap(
232 Drawable icon, UserHandleCompat user, Context context) {
Sunny Goyal531cda62016-03-03 13:19:24 -0800233 float scale = FeatureFlags.LAUNCHER3_DISABLE_ICON_NORMALIZATION ?
234 1 : IconNormalizer.getInstance().getScale(icon);
Sunny Goyalfc218302015-09-17 14:59:10 -0700235 Bitmap bitmap = createIconBitmap(icon, context, scale);
Sunny Goyalb84046d2015-10-19 14:03:30 -0700236 if (Utilities.ATLEAST_LOLLIPOP && user != null
237 && !UserHandleCompat.myUserHandle().equals(user)) {
Sunny Goyale1483fb2016-01-08 12:16:15 -0800238 BitmapDrawable drawable = new FixedSizeBitmapDrawable(bitmap);
Sunny Goyalb84046d2015-10-19 14:03:30 -0700239 Drawable badged = context.getPackageManager().getUserBadgedIcon(
240 drawable, user.getUser());
241 if (badged instanceof BitmapDrawable) {
242 return ((BitmapDrawable) badged).getBitmap();
243 } else {
244 return createIconBitmap(badged, context);
245 }
246 } else {
247 return bitmap;
248 }
249 }
250
251 /**
Michael Jurka931dc972011-08-05 15:08:15 -0700252 * Returns a bitmap suitable for the all apps view.
Joe Onorato6665c0f2009-09-02 15:27:24 -0700253 */
Mathew Inwood72fbec12013-11-19 15:45:07 +0000254 public static Bitmap createIconBitmap(Drawable icon, Context context) {
Sunny Goyalfc218302015-09-17 14:59:10 -0700255 return createIconBitmap(icon, context, 1.0f /* scale */);
256 }
257
258 /**
259 * @param scale the scale to apply before drawing {@param icon} on the canvas
260 */
261 public static Bitmap createIconBitmap(Drawable icon, Context context, float scale) {
Sunny Goyal53d7ee42015-05-22 12:25:45 -0700262 synchronized (sCanvas) {
263 final int iconBitmapSize = getIconBitmapSize();
Joe Onorato6665c0f2009-09-02 15:27:24 -0700264
Sunny Goyal53d7ee42015-05-22 12:25:45 -0700265 int width = iconBitmapSize;
266 int height = iconBitmapSize;
Joe Onorato6665c0f2009-09-02 15:27:24 -0700267
Joe Onorato6665c0f2009-09-02 15:27:24 -0700268 if (icon instanceof PaintDrawable) {
269 PaintDrawable painter = (PaintDrawable) icon;
270 painter.setIntrinsicWidth(width);
271 painter.setIntrinsicHeight(height);
272 } else if (icon instanceof BitmapDrawable) {
273 // Ensure the bitmap has a density.
274 BitmapDrawable bitmapDrawable = (BitmapDrawable) icon;
275 Bitmap bitmap = bitmapDrawable.getBitmap();
Sunny Goyalde9590b2015-09-23 12:56:51 -0700276 if (bitmap != null && bitmap.getDensity() == Bitmap.DENSITY_NONE) {
Joe Onorato6665c0f2009-09-02 15:27:24 -0700277 bitmapDrawable.setTargetDensity(context.getResources().getDisplayMetrics());
278 }
279 }
280 int sourceWidth = icon.getIntrinsicWidth();
281 int sourceHeight = icon.getIntrinsicHeight();
Michael Jurka931dc972011-08-05 15:08:15 -0700282 if (sourceWidth > 0 && sourceHeight > 0) {
Winson Chung5f8afe62013-08-12 16:19:28 -0700283 // Scale the icon proportionally to the icon dimensions
284 final float ratio = (float) sourceWidth / sourceHeight;
285 if (sourceWidth > sourceHeight) {
286 height = (int) (width / ratio);
287 } else if (sourceHeight > sourceWidth) {
288 width = (int) (height * ratio);
Joe Onorato6665c0f2009-09-02 15:27:24 -0700289 }
290 }
291
292 // no intrinsic size --> use default size
Sunny Goyal53d7ee42015-05-22 12:25:45 -0700293 int textureWidth = iconBitmapSize;
294 int textureHeight = iconBitmapSize;
Joe Onorato6665c0f2009-09-02 15:27:24 -0700295
296 final Bitmap bitmap = Bitmap.createBitmap(textureWidth, textureHeight,
297 Bitmap.Config.ARGB_8888);
298 final Canvas canvas = sCanvas;
299 canvas.setBitmap(bitmap);
300
301 final int left = (textureWidth-width) / 2;
302 final int top = (textureHeight-height) / 2;
303
Michael Jurka3a9fced2012-04-13 14:44:29 -0700304 @SuppressWarnings("all") // suppress dead code warning
305 final boolean debug = false;
306 if (debug) {
Joe Onorato6665c0f2009-09-02 15:27:24 -0700307 // draw a big box for the icon for debugging
308 canvas.drawColor(sColors[sColorIndex]);
309 if (++sColorIndex >= sColors.length) sColorIndex = 0;
310 Paint debugPaint = new Paint();
311 debugPaint.setColor(0xffcccc00);
312 canvas.drawRect(left, top, left+width, top+height, debugPaint);
313 }
314
315 sOldBounds.set(icon.getBounds());
316 icon.setBounds(left, top, left+width, top+height);
Sunny Goyalfc218302015-09-17 14:59:10 -0700317 canvas.save(Canvas.MATRIX_SAVE_FLAG);
318 canvas.scale(scale, scale, textureWidth / 2, textureHeight / 2);
Joe Onorato6665c0f2009-09-02 15:27:24 -0700319 icon.draw(canvas);
Sunny Goyalfc218302015-09-17 14:59:10 -0700320 canvas.restore();
Joe Onorato6665c0f2009-09-02 15:27:24 -0700321 icon.setBounds(sOldBounds);
Adam Cohenaaf473c2011-08-03 12:02:47 -0700322 canvas.setBitmap(null);
Joe Onorato6665c0f2009-09-02 15:27:24 -0700323
324 return bitmap;
325 }
326 }
327
The Android Open Source Project31dd5032009-03-03 19:32:27 -0800328 /**
Winson Chungc763c4e2013-07-19 13:49:06 -0700329 * Given a coordinate relative to the descendant, find the coordinate in a parent view's
330 * coordinates.
331 *
332 * @param descendant The descendant to which the passed coordinate is relative.
333 * @param root The root view to make the coordinates relative to.
334 * @param coord The coordinate that we want mapped.
335 * @param includeRootScroll Whether or not to account for the scroll of the descendant:
336 * sometimes this is relevant as in a child's coordinates within the descendant.
337 * @return The factor by which this descendant is scaled relative to this DragLayer. Caution
338 * this scale factor is assumed to be equal in X and Y, and so if at any point this
339 * assumption fails, we will need to return a pair of scale factors.
340 */
341 public static float getDescendantCoordRelativeToParent(View descendant, View root,
342 int[] coord, boolean includeRootScroll) {
343 ArrayList<View> ancestorChain = new ArrayList<View>();
344
345 float[] pt = {coord[0], coord[1]};
346
347 View v = descendant;
348 while(v != root && v != null) {
349 ancestorChain.add(v);
350 v = (View) v.getParent();
351 }
352 ancestorChain.add(root);
353
354 float scale = 1.0f;
355 int count = ancestorChain.size();
356 for (int i = 0; i < count; i++) {
357 View v0 = ancestorChain.get(i);
Winson Chungc763c4e2013-07-19 13:49:06 -0700358 // For TextViews, scroll has a meaning which relates to the text position
359 // which is very strange... ignore the scroll.
360 if (v0 != descendant || includeRootScroll) {
361 pt[0] -= v0.getScrollX();
362 pt[1] -= v0.getScrollY();
363 }
364
365 v0.getMatrix().mapPoints(pt);
366 pt[0] += v0.getLeft();
367 pt[1] += v0.getTop();
368 scale *= v0.getScaleX();
369 }
370
371 coord[0] = (int) Math.round(pt[0]);
372 coord[1] = (int) Math.round(pt[1]);
373 return scale;
374 }
375
376 /**
Sunny Goyalfc218302015-09-17 14:59:10 -0700377 * Inverse of {@link #getDescendantCoordRelativeToParent(View, View, int[], boolean)}.
Winson Chungc763c4e2013-07-19 13:49:06 -0700378 */
379 public static float mapCoordInSelfToDescendent(View descendant, View root,
380 int[] coord) {
381 ArrayList<View> ancestorChain = new ArrayList<View>();
382
383 float[] pt = {coord[0], coord[1]};
384
385 View v = descendant;
386 while(v != root) {
387 ancestorChain.add(v);
388 v = (View) v.getParent();
389 }
390 ancestorChain.add(root);
391
392 float scale = 1.0f;
393 Matrix inverse = new Matrix();
394 int count = ancestorChain.size();
395 for (int i = count - 1; i >= 0; i--) {
396 View ancestor = ancestorChain.get(i);
397 View next = i > 0 ? ancestorChain.get(i-1) : null;
398
399 pt[0] += ancestor.getScrollX();
400 pt[1] += ancestor.getScrollY();
401
402 if (next != null) {
403 pt[0] -= next.getLeft();
404 pt[1] -= next.getTop();
405 next.getMatrix().invert(inverse);
406 inverse.mapPoints(pt);
407 scale *= next.getScaleX();
408 }
409 }
410
411 coord[0] = (int) Math.round(pt[0]);
412 coord[1] = (int) Math.round(pt[1]);
413 return scale;
414 }
415
Jason Monk02dd7ae2014-04-15 15:23:31 -0400416 /**
417 * Utility method to determine whether the given point, in local coordinates,
418 * is inside the view, where the area of the view is expanded by the slop factor.
419 * This method is called while processing touch-move events to determine if the event
420 * is still within the view.
421 */
422 public static boolean pointInView(View v, float localX, float localY, float slop) {
423 return localX >= -slop && localY >= -slop && localX < (v.getWidth() + slop) &&
424 localY < (v.getHeight() + slop);
425 }
426
Adam Cohen63f1ec02014-08-12 09:23:13 -0700427 public static int[] getCenterDeltaInScreenSpace(View v0, View v1, int[] delta) {
428 v0.getLocationInWindow(sLoc0);
429 v1.getLocationInWindow(sLoc1);
430
431 sLoc0[0] += (v0.getMeasuredWidth() * v0.getScaleX()) / 2;
432 sLoc0[1] += (v0.getMeasuredHeight() * v0.getScaleY()) / 2;
433 sLoc1[0] += (v1.getMeasuredWidth() * v1.getScaleX()) / 2;
434 sLoc1[1] += (v1.getMeasuredHeight() * v1.getScaleY()) / 2;
435
436 if (delta == null) {
437 delta = new int[2];
438 }
439
440 delta[0] = sLoc1[0] - sLoc0[0];
441 delta[1] = sLoc1[1] - sLoc0[1];
442
443 return delta;
444 }
445
Winson Chung3a6e7f32013-10-09 15:50:52 -0700446 public static void scaleRectAboutCenter(Rect r, float scale) {
Sunny Goyal106bf642015-07-16 12:18:06 -0700447 if (scale != 1.0f) {
448 int cx = r.centerX();
449 int cy = r.centerY();
450 r.offset(-cx, -cy);
451
452 r.left = (int) (r.left * scale + 0.5f);
453 r.top = (int) (r.top * scale + 0.5f);
454 r.right = (int) (r.right * scale + 0.5f);
455 r.bottom = (int) (r.bottom * scale + 0.5f);
456
457 r.offset(cx, cy);
458 }
Winson Chung3a6e7f32013-10-09 15:50:52 -0700459 }
460
Michael Jurkaa805e1a2013-08-22 15:00:33 +0200461 public static void startActivityForResultSafely(
462 Activity activity, Intent intent, int requestCode) {
463 try {
464 activity.startActivityForResult(intent, requestCode);
465 } catch (ActivityNotFoundException e) {
466 Toast.makeText(activity, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
467 } catch (SecurityException e) {
468 Toast.makeText(activity, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
469 Log.e(TAG, "Launcher does not have the permission to launch " + intent +
470 ". Make sure to create a MAIN intent-filter for the corresponding activity " +
471 "or use the exported attribute for this activity.", e);
472 }
473 }
Sunny Goyalc5c60ad2014-07-14 12:02:01 -0700474
475 static boolean isSystemApp(Context context, Intent intent) {
476 PackageManager pm = context.getPackageManager();
477 ComponentName cn = intent.getComponent();
478 String packageName = null;
479 if (cn == null) {
480 ResolveInfo info = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
481 if ((info != null) && (info.activityInfo != null)) {
482 packageName = info.activityInfo.packageName;
483 }
484 } else {
485 packageName = cn.getPackageName();
486 }
487 if (packageName != null) {
488 try {
489 PackageInfo info = pm.getPackageInfo(packageName, 0);
490 return (info != null) && (info.applicationInfo != null) &&
491 ((info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0);
492 } catch (NameNotFoundException e) {
493 return false;
494 }
495 } else {
496 return false;
497 }
498 }
Sunny Goyal95abbb32014-08-04 10:53:22 -0700499
500 /**
501 * This picks a dominant color, looking for high-saturation, high-value, repeated hues.
502 * @param bitmap The bitmap to scan
503 * @param samples The approximate max number of samples to use.
504 */
505 static int findDominantColorByHue(Bitmap bitmap, int samples) {
506 final int height = bitmap.getHeight();
507 final int width = bitmap.getWidth();
508 int sampleStride = (int) Math.sqrt((height * width) / samples);
509 if (sampleStride < 1) {
510 sampleStride = 1;
511 }
512
513 // This is an out-param, for getting the hsv values for an rgb
514 float[] hsv = new float[3];
515
516 // First get the best hue, by creating a histogram over 360 hue buckets,
517 // where each pixel contributes a score weighted by saturation, value, and alpha.
518 float[] hueScoreHistogram = new float[360];
519 float highScore = -1;
520 int bestHue = -1;
521
522 for (int y = 0; y < height; y += sampleStride) {
523 for (int x = 0; x < width; x += sampleStride) {
524 int argb = bitmap.getPixel(x, y);
525 int alpha = 0xFF & (argb >> 24);
526 if (alpha < 0x80) {
527 // Drop mostly-transparent pixels.
528 continue;
529 }
530 // Remove the alpha channel.
531 int rgb = argb | 0xFF000000;
532 Color.colorToHSV(rgb, hsv);
533 // Bucket colors by the 360 integer hues.
534 int hue = (int) hsv[0];
535 if (hue < 0 || hue >= hueScoreHistogram.length) {
536 // Defensively avoid array bounds violations.
537 continue;
538 }
539 float score = hsv[1] * hsv[2];
540 hueScoreHistogram[hue] += score;
541 if (hueScoreHistogram[hue] > highScore) {
542 highScore = hueScoreHistogram[hue];
543 bestHue = hue;
544 }
545 }
546 }
547
548 SparseArray<Float> rgbScores = new SparseArray<Float>();
549 int bestColor = 0xff000000;
550 highScore = -1;
551 // Go back over the RGB colors that match the winning hue,
552 // creating a histogram of weighted s*v scores, for up to 100*100 [s,v] buckets.
553 // The highest-scoring RGB color wins.
554 for (int y = 0; y < height; y += sampleStride) {
555 for (int x = 0; x < width; x += sampleStride) {
556 int rgb = bitmap.getPixel(x, y) | 0xff000000;
557 Color.colorToHSV(rgb, hsv);
558 int hue = (int) hsv[0];
559 if (hue == bestHue) {
560 float s = hsv[1];
561 float v = hsv[2];
562 int bucket = (int) (s * 100) + (int) (v * 10000);
563 // Score by cumulative saturation * value.
564 float score = s * v;
565 Float oldTotal = rgbScores.get(bucket);
566 float newTotal = oldTotal == null ? score : oldTotal + score;
567 rgbScores.put(bucket, newTotal);
568 if (newTotal > highScore) {
569 highScore = newTotal;
570 // All the colors in the winning bucket are very similar. Last in wins.
571 bestColor = rgb;
572 }
573 }
574 }
575 }
576 return bestColor;
577 }
Sunny Goyal0fe505b2014-08-06 09:55:36 -0700578
579 /*
580 * Finds a system apk which had a broadcast receiver listening to a particular action.
581 * @param action intent action used to find the apk
582 * @return a pair of apk package name and the resources.
583 */
584 static Pair<String, Resources> findSystemApk(String action, PackageManager pm) {
585 final Intent intent = new Intent(action);
586 for (ResolveInfo info : pm.queryBroadcastReceivers(intent, 0)) {
587 if (info.activityInfo != null &&
588 (info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
589 final String packageName = info.activityInfo.packageName;
590 try {
591 final Resources res = pm.getResourcesForApplication(packageName);
592 return Pair.create(packageName, res);
593 } catch (NameNotFoundException e) {
594 Log.w(TAG, "Failed to find resources for " + packageName);
595 }
596 }
597 }
598 return null;
599 }
Sunny Goyalfafca522014-11-03 11:30:01 -0800600
Sunny Goyal594d76d2014-11-06 10:12:54 -0800601 /**
602 * Returns a widget with category {@link AppWidgetProviderInfo#WIDGET_CATEGORY_SEARCHBOX}
603 * provided by the same package which is set to be global search activity.
604 * If widgetCategory is not supported, or no such widget is found, returns the first widget
605 * provided by the package.
606 */
607 @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
608 public static AppWidgetProviderInfo getSearchWidgetProvider(Context context) {
609 SearchManager searchManager =
610 (SearchManager) context.getSystemService(Context.SEARCH_SERVICE);
611 ComponentName searchComponent = searchManager.getGlobalSearchActivity();
612 if (searchComponent == null) return null;
613 String providerPkg = searchComponent.getPackageName();
614
615 AppWidgetProviderInfo defaultWidgetForSearchPackage = null;
616
617 AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
618 for (AppWidgetProviderInfo info : appWidgetManager.getInstalledProviders()) {
619 if (info.provider.getPackageName().equals(providerPkg)) {
Sunny Goyal9fc953b2015-08-17 12:24:25 -0700620 if (ATLEAST_JB_MR1) {
Sunny Goyal594d76d2014-11-06 10:12:54 -0800621 if ((info.widgetCategory & AppWidgetProviderInfo.WIDGET_CATEGORY_SEARCHBOX) != 0) {
622 return info;
623 } else if (defaultWidgetForSearchPackage == null) {
624 defaultWidgetForSearchPackage = info;
625 }
626 } else {
627 return info;
628 }
629 }
630 }
631 return defaultWidgetForSearchPackage;
632 }
Sunny Goyal08f72612015-01-05 13:41:43 -0800633
Sunny Goyal5b0e6692015-03-19 14:31:19 -0700634 /**
635 * Compresses the bitmap to a byte array for serialization.
636 */
637 public static byte[] flattenBitmap(Bitmap bitmap) {
638 // Try go guesstimate how much space the icon will take when serialized
639 // to avoid unnecessary allocations/copies during the write.
640 int size = bitmap.getWidth() * bitmap.getHeight() * 4;
641 ByteArrayOutputStream out = new ByteArrayOutputStream(size);
642 try {
643 bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
644 out.flush();
645 out.close();
646 return out.toByteArray();
647 } catch (IOException e) {
648 Log.w(TAG, "Could not write bitmap");
649 return null;
650 }
651 }
652
Sunny Goyalf7a29e82015-04-24 15:20:43 -0700653 /**
654 * Find the first vacant cell, if there is one.
655 *
656 * @param vacant Holds the x and y coordinate of the vacant cell
657 * @param spanX Horizontal cell span.
658 * @param spanY Vertical cell span.
659 *
660 * @return true if a vacant cell was found
661 */
662 public static boolean findVacantCell(int[] vacant, int spanX, int spanY,
663 int xCount, int yCount, boolean[][] occupied) {
664
665 for (int y = 0; (y + spanY) <= yCount; y++) {
666 for (int x = 0; (x + spanX) <= xCount; x++) {
667 boolean available = !occupied[x][y];
668 out: for (int i = x; i < x + spanX; i++) {
669 for (int j = y; j < y + spanY; j++) {
670 available = available && !occupied[i][j];
671 if (!available) break out;
672 }
673 }
674
675 if (available) {
676 vacant[0] = x;
677 vacant[1] = y;
678 return true;
679 }
680 }
681 }
682
683 return false;
684 }
Winson Chung82b016c2015-05-08 17:00:10 -0700685
686 /**
687 * Trims the string, removing all whitespace at the beginning and end of the string.
688 * Non-breaking whitespaces are also removed.
689 */
690 public static String trim(CharSequence s) {
Winson Chungafa77e92015-05-15 12:04:03 -0700691 if (s == null) {
692 return null;
693 }
694
Winson Chung82b016c2015-05-08 17:00:10 -0700695 // Just strip any sequence of whitespace or java space characters from the beginning and end
696 Matcher m = sTrimPattern.matcher(s);
697 return m.replaceAll("$1");
698 }
Sunny Goyal70660032015-05-14 00:07:08 -0700699
Winson Chung2c6e5cc2015-06-01 14:38:24 -0700700 /**
701 * Calculates the height of a given string at a specific text size.
702 */
703 public static float calculateTextHeight(float textSizePx) {
704 Paint p = new Paint();
705 p.setTextSize(textSizePx);
706 Paint.FontMetrics fm = p.getFontMetrics();
707 return -fm.top + fm.bottom;
708 }
709
Winson Chungb1777442015-06-16 13:35:04 -0700710 /**
711 * Convenience println with multiple args.
712 */
713 public static void println(String key, Object... args) {
714 StringBuilder b = new StringBuilder();
715 b.append(key);
716 b.append(": ");
717 boolean isFirstArgument = true;
718 for (Object arg : args) {
719 if (isFirstArgument) {
720 isFirstArgument = false;
721 } else {
722 b.append(", ");
723 }
724 b.append(arg);
725 }
726 System.out.println(b.toString());
727 }
728
Sunny Goyal70660032015-05-14 00:07:08 -0700729 @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
730 public static boolean isRtl(Resources res) {
Sunny Goyal9fc953b2015-08-17 12:24:25 -0700731 return ATLEAST_JB_MR1 &&
Sunny Goyal70660032015-05-14 00:07:08 -0700732 (res.getConfiguration().getLayoutDirection() == View.LAYOUT_DIRECTION_RTL);
733 }
Hyunyoung Song2bd3d7d2015-05-21 13:04:53 -0700734
Sunny Goyal5c97f512015-05-19 16:03:28 -0700735 /**
736 * Returns true if the intent is a valid launch intent for a launcher activity of an app.
737 * This is used to identify shortcuts which are different from the ones exposed by the
738 * applications' manifest file.
739 *
740 * @param launchIntent The intent that will be launched when the shortcut is clicked.
741 */
742 public static boolean isLauncherAppTarget(Intent launchIntent) {
Sunny Goyal4e5cc642015-06-25 16:37:44 -0700743 if (launchIntent != null
Sunny Goyal5c97f512015-05-19 16:03:28 -0700744 && Intent.ACTION_MAIN.equals(launchIntent.getAction())
745 && launchIntent.getComponent() != null
746 && launchIntent.getCategories() != null
747 && launchIntent.getCategories().size() == 1
748 && launchIntent.hasCategory(Intent.CATEGORY_LAUNCHER)
Sunny Goyal4e5cc642015-06-25 16:37:44 -0700749 && TextUtils.isEmpty(launchIntent.getDataString())) {
750 // An app target can either have no extra or have ItemInfo.EXTRA_PROFILE.
751 Bundle extras = launchIntent.getExtras();
752 if (extras == null) {
753 return true;
754 } else {
755 Set<String> keys = extras.keySet();
756 return keys.size() == 1 && keys.contains(ItemInfo.EXTRA_PROFILE);
757 }
758 };
759 return false;
Sunny Goyal5c97f512015-05-19 16:03:28 -0700760 }
Adam Cohen2e6da152015-05-06 11:42:25 -0700761
762 public static float dpiFromPx(int size, DisplayMetrics metrics){
763 float densityRatio = (float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT;
764 return (size / densityRatio);
765 }
766 public static int pxFromDp(float size, DisplayMetrics metrics) {
767 return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
768 size, metrics));
769 }
770 public static int pxFromSp(float size, DisplayMetrics metrics) {
771 return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
772 size, metrics));
773 }
Sunny Goyalb1622cc2015-06-10 16:00:42 -0700774
775 public static String createDbSelectionQuery(String columnName, Iterable<?> values) {
776 return String.format(Locale.ENGLISH, "%s IN (%s)", columnName, TextUtils.join(", ", values));
777 }
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700778
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700779 public static boolean isBootCompleted() {
780 try {
781 Class clazz = Class.forName("android.os.SystemProperties");
782 Method getter = clazz.getDeclaredMethod("get", String.class);
783 String value = (String) getter.invoke(null, "sys.boot_completed");
784 return "1".equals(value);
785 } catch (Exception e) {
786 Log.d(TAG, "Unable to read system properties");
787 // Assume that boot has completed
788 return true;
789 }
790 }
Tony Wickham29d853c2015-09-08 10:35:56 -0700791
792 /**
793 * Ensures that a value is within given bounds. Specifically:
794 * If value is less than lowerBound, return lowerBound; else if value is greater than upperBound,
795 * return upperBound; else return value unchanged.
796 */
797 public static int boundInRange(int value, int lowerBound, int upperBound) {
798 return Math.max(lowerBound, Math.min(value, upperBound));
799 }
Sunny Goyal9d438082015-09-25 11:50:16 -0700800
Sunny Goyale78e3d72015-09-24 11:23:31 -0700801 /**
802 * Wraps a message with a TTS span, so that a different message is spoken than
803 * what is getting displayed.
804 * @param msg original message
805 * @param ttsMsg message to be spoken
806 */
807 @TargetApi(Build.VERSION_CODES.LOLLIPOP)
808 public static CharSequence wrapForTts(CharSequence msg, String ttsMsg) {
809 if (Utilities.ATLEAST_LOLLIPOP) {
810 SpannableString spanned = new SpannableString(msg);
811 spanned.setSpan(new TtsSpan.TextBuilder(ttsMsg).build(),
812 0, spanned.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
813 return spanned;
814 } else {
815 return msg;
816 }
817 }
Winson12fb9fc2015-10-01 15:34:08 -0700818
819 /**
820 * Replacement for Long.compare() which was added in API level 19.
821 */
822 public static int longCompare(long lhs, long rhs) {
823 return lhs < rhs ? -1 : (lhs == rhs ? 0 : 1);
824 }
Sunny Goyalf7258242015-10-19 16:59:07 -0700825
826 public static SharedPreferences getPrefs(Context context) {
827 return context.getSharedPreferences(
828 LauncherFiles.SHARED_PREFERENCES_KEY, Context.MODE_PRIVATE);
829 }
Tony Wickham112ac952015-11-12 12:31:50 -0800830
831 @TargetApi(Build.VERSION_CODES.LOLLIPOP)
832 public static boolean isPowerSaverOn(Context context) {
833 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
834 return ATLEAST_LOLLIPOP && powerManager.isPowerSaveMode();
835 }
Sunny Goyale1483fb2016-01-08 12:16:15 -0800836
Sunny Goyal1ed6c4a2016-04-21 15:16:11 -0700837 public static boolean isWallapaperAllowed(Context context) {
838 if (isNycOrAbove()) {
839 try {
840 WallpaperManager wm = context.getSystemService(WallpaperManager.class);
841 return (Boolean) wm.getClass().getDeclaredMethod("isWallpaperSettingAllowed")
842 .invoke(wm);
843 } catch (Exception e) { }
844 }
845 return true;
846 }
847
Sunny Goyale1483fb2016-01-08 12:16:15 -0800848 /**
849 * An extension of {@link BitmapDrawable} which returns the bitmap pixel size as intrinsic size.
850 * This allows the badging to be done based on the action bitmap size rather than
851 * the scaled bitmap size.
852 */
853 private static class FixedSizeBitmapDrawable extends BitmapDrawable {
854
855 public FixedSizeBitmapDrawable(Bitmap bitmap) {
856 super(null, bitmap);
857 }
858
859 @Override
860 public int getIntrinsicHeight() {
861 return getBitmap().getWidth();
862 }
863
864 @Override
865 public int getIntrinsicWidth() {
866 return getBitmap().getWidth();
867 }
868 }
The Android Open Source Project31dd5032009-03-03 19:32:27 -0800869}