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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
Vadim Tryshev2ce6a132018-06-18 19:14:44 -070019import android.app.ActivityManager;
Sunny Goyal1ed6c4a2016-04-21 15:16:11 -070020import android.app.WallpaperManager;
Sunny Goyalc5c60ad2014-07-14 12:02:01 -070021import android.content.ComponentName;
Winson Chungaafa03c2010-06-11 17:34:16 -070022import android.content.Context;
Michael Jurkaa805e1a2013-08-22 15:00:33 +020023import android.content.Intent;
Rahul Chaturvedi7fc77ca2015-05-19 18:02:16 -070024import android.content.SharedPreferences;
Sunny Goyalc5c60ad2014-07-14 12:02:01 -070025import android.content.pm.ApplicationInfo;
26import android.content.pm.PackageInfo;
27import android.content.pm.PackageManager;
28import android.content.pm.PackageManager.NameNotFoundException;
29import android.content.pm.ResolveInfo;
Winson Chungaafa03c2010-06-11 17:34:16 -070030import android.content.res.Resources;
The Android Open Source Project31dd5032009-03-03 19:32:27 -080031import android.graphics.Bitmap;
Winson Chungc763c4e2013-07-19 13:49:06 -070032import android.graphics.Matrix;
The Android Open Source Project31dd5032009-03-03 19:32:27 -080033import android.graphics.Paint;
34import android.graphics.Rect;
Sunny Goyalb1e2e292018-02-21 10:14:30 -080035import android.graphics.RectF;
Sandeep Siddhartha2efc7d92014-05-16 17:21:15 -070036import android.os.Build;
Sunny Goyal4e5cc642015-06-25 16:37:44 -070037import android.os.Bundle;
Sunny Goyal712ee532016-11-04 10:19:58 -070038import android.os.DeadObjectException;
Sunny Goyal3483c522018-04-12 11:23:33 -070039import android.os.Handler;
40import android.os.Message;
Tony Wickham112ac952015-11-12 12:31:50 -080041import android.os.PowerManager;
Sunny Goyal712ee532016-11-04 10:19:58 -070042import android.os.TransactionTooLargeException;
Sunny Goyale78e3d72015-09-24 11:23:31 -070043import android.text.Spannable;
44import android.text.SpannableString;
Sunny Goyal5c97f512015-05-19 16:03:28 -070045import android.text.TextUtils;
Sunny Goyale78e3d72015-09-24 11:23:31 -070046import android.text.style.TtsSpan;
Adam Cohen2e6da152015-05-06 11:42:25 -070047import android.util.DisplayMetrics;
Michael Jurkaa805e1a2013-08-22 15:00:33 +020048import android.util.Log;
Sunny Goyal0fe505b2014-08-06 09:55:36 -070049import android.util.Pair;
Adam Cohen2e6da152015-05-06 11:42:25 -070050import android.util.TypedValue;
Winson Chungc763c4e2013-07-19 13:49:06 -070051import android.view.View;
Sunny Goyal0f3af752018-06-08 13:01:04 -070052import android.view.animation.Interpolator;
Sunny Goyalb1622cc2015-06-10 16:00:42 -070053
Sunny Goyal3d706ad2017-03-06 16:56:39 -080054import com.android.launcher3.config.FeatureFlags;
Sunny Goyal6c56c682015-07-16 14:09:05 -070055
Sunny Goyal5b0e6692015-03-19 14:31:19 -070056import java.io.ByteArrayOutputStream;
Sunny Goyal713edfc2016-05-06 09:58:34 -070057import java.io.Closeable;
Sunny Goyal5b0e6692015-03-19 14:31:19 -070058import java.io.IOException;
Sunny Goyal25aba0a2015-07-16 15:07:47 -070059import java.lang.reflect.Method;
Tony Wickham1bce7fd2016-04-28 17:39:03 -070060import java.util.Collection;
Tony Wickham580edcf2017-02-09 08:28:52 -080061import java.util.HashSet;
Sunny Goyalb1622cc2015-06-10 16:00:42 -070062import java.util.Locale;
Sunny Goyal8ac727b2015-09-23 15:38:09 -070063import java.util.concurrent.Executor;
64import java.util.concurrent.LinkedBlockingQueue;
65import java.util.concurrent.ThreadPoolExecutor;
66import java.util.concurrent.TimeUnit;
Winson Chung82b016c2015-05-08 17:00:10 -070067import java.util.regex.Matcher;
68import java.util.regex.Pattern;
The Android Open Source Project31dd5032009-03-03 19:32:27 -080069
70/**
71 * Various utilities shared amongst the Launcher's classes.
72 */
Mathew Inwood72fbec12013-11-19 15:45:07 +000073public final class Utilities {
Rahul Chaturvedi7fc77ca2015-05-19 18:02:16 -070074
Joe Onorato1291a8c2009-09-15 15:07:25 -040075 private static final String TAG = "Launcher.Utilities";
76
Winson Chung82b016c2015-05-08 17:00:10 -070077 private static final Pattern sTrimPattern =
78 Pattern.compile("^[\\s|\\p{javaSpaceChar}]*(.*)[\\s|\\p{javaSpaceChar}]*$");
79
Sunny Goyal53d7ee42015-05-22 12:25:45 -070080 private static final int[] sLoc0 = new int[2];
81 private static final int[] sLoc1 = new int[2];
Sunny Goyal5e0e94f2016-10-28 10:01:00 -070082 private static final float[] sPoint = new float[2];
83 private static final Matrix sMatrix = new Matrix();
84 private static final Matrix sInverseMatrix = new Matrix();
Michael Jurka7ad868b2013-12-12 15:04:25 +010085
Lucas Dupineca08a12018-08-11 15:53:40 -070086 public static final boolean ATLEAST_Q = Build.VERSION.CODENAME.length() == 1
87 && Build.VERSION.CODENAME.charAt(0) >= 'Q'
88 && Build.VERSION.CODENAME.charAt(0) <= 'Z';
89
Tony Wickham8155fa22018-05-18 17:18:49 -070090 public static final boolean ATLEAST_P =
91 Build.VERSION.SDK_INT >= Build.VERSION_CODES.P;
Tony Mak6eeb0402018-01-03 14:41:31 +000092
Hyunyoung Songe24cb632017-09-11 11:18:03 -070093 public static final boolean ATLEAST_OREO_MR1 =
94 Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1;
95
96 public static final boolean ATLEAST_OREO =
97 Build.VERSION.SDK_INT >= Build.VERSION_CODES.O;
Sunny Goyaldcc0ba22016-11-02 11:22:39 -070098
Sunny Goyalf5e37442016-11-02 10:31:24 -070099 public static final boolean ATLEAST_NOUGAT_MR1 =
Hyunyoung Songe24cb632017-09-11 11:18:03 -0700100 Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1;
Sunny Goyal9994b2b2016-06-23 14:17:24 -0700101
Sunny Goyalf5e37442016-11-02 10:31:24 -0700102 public static final boolean ATLEAST_NOUGAT =
Hyunyoung Songe24cb632017-09-11 11:18:03 -0700103 Build.VERSION.SDK_INT >= Build.VERSION_CODES.N;
Sunny Goyale2ec8a32016-09-01 11:00:49 -0700104
Winsonbe9798b2016-07-20 12:55:49 -0700105 public static final boolean ATLEAST_MARSHMALLOW =
106 Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
Sunny Goyal9fc953b2015-08-17 12:24:25 -0700107
108 public static final boolean ATLEAST_LOLLIPOP_MR1 =
109 Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1;
110
Jon Miranda83337f92018-04-24 12:21:28 -0700111 public static final int SINGLE_FRAME_MS = 16;
112
Sunny Goyal49f19f02017-01-05 14:36:02 -0800113 /**
114 * Indicates if the device has a debug build. Should only be used to store additional info or
115 * add extra logging and not for changing the app behavior.
116 */
Tobias Dubois9c0ad562018-06-11 16:17:17 +0200117 public static final boolean IS_DEBUG_DEVICE =
118 Build.TYPE.toLowerCase(Locale.ROOT).contains("debug") ||
119 Build.TYPE.toLowerCase(Locale.ROOT).equals("eng");
Sunny Goyal49f19f02017-01-05 14:36:02 -0800120
Sunny Goyal6f866092016-03-17 17:04:15 -0700121 // An intent extra to indicate the horizontal scroll of the wallpaper.
122 public static final String EXTRA_WALLPAPER_OFFSET = "com.android.launcher3.WALLPAPER_OFFSET";
123
Tony629a67c2017-06-02 15:43:26 -0700124 public static final int COLOR_EXTRACTION_JOB_ID = 1;
Sunny Goyal82315962017-06-08 14:27:49 -0700125 public static final int WALLPAPER_COMPAT_JOB_ID = 2;
Tony629a67c2017-06-02 15:43:26 -0700126
Sunny Goyal8ac727b2015-09-23 15:38:09 -0700127 // These values are same as that in {@link AsyncTask}.
128 private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
129 private static final int CORE_POOL_SIZE = CPU_COUNT + 1;
130 private static final int MAXIMUM_POOL_SIZE = CPU_COUNT * 2 + 1;
131 private static final int KEEP_ALIVE = 1;
132 /**
133 * An {@link Executor} to be used with async task with no limit on the queue size.
134 */
135 public static final Executor THREAD_POOL_EXECUTOR = new ThreadPoolExecutor(
136 CORE_POOL_SIZE, MAXIMUM_POOL_SIZE, KEEP_ALIVE,
137 TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>());
138
Vadim Tryshev2ce6a132018-06-18 19:14:44 -0700139 public static final boolean IS_RUNNING_IN_TEST_HARNESS =
140 ActivityManager.isRunningInTestHarness();
141
Sunny Goyal4bbf4192014-11-11 12:23:59 -0800142 public static boolean isPropertyEnabled(String propertyName) {
Michael Jurka7ad868b2013-12-12 15:04:25 +0100143 return Log.isLoggable(propertyName, Log.VERBOSE);
144 }
145
The Android Open Source Project31dd5032009-03-03 19:32:27 -0800146 /**
Winson Chungc763c4e2013-07-19 13:49:06 -0700147 * Given a coordinate relative to the descendant, find the coordinate in a parent view's
148 * coordinates.
149 *
150 * @param descendant The descendant to which the passed coordinate is relative.
Sunny Goyale8b5d202016-06-13 16:36:59 -0700151 * @param ancestor The root view to make the coordinates relative to.
Winson Chungc763c4e2013-07-19 13:49:06 -0700152 * @param coord The coordinate that we want mapped.
153 * @param includeRootScroll Whether or not to account for the scroll of the descendant:
154 * sometimes this is relevant as in a child's coordinates within the descendant.
155 * @return The factor by which this descendant is scaled relative to this DragLayer. Caution
156 * this scale factor is assumed to be equal in X and Y, and so if at any point this
157 * assumption fails, we will need to return a pair of scale factors.
158 */
Sunny Goyale8b5d202016-06-13 16:36:59 -0700159 public static float getDescendantCoordRelativeToAncestor(
160 View descendant, View ancestor, int[] coord, boolean includeRootScroll) {
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700161 sPoint[0] = coord[0];
162 sPoint[1] = coord[1];
163
Sunny Goyal8cf47a52016-06-15 10:11:30 -0700164 float scale = 1.0f;
Winson Chungc763c4e2013-07-19 13:49:06 -0700165 View v = descendant;
Sunny Goyale8b5d202016-06-13 16:36:59 -0700166 while(v != ancestor && v != null) {
Sunny Goyal8cf47a52016-06-15 10:11:30 -0700167 // For TextViews, scroll has a meaning which relates to the text position
168 // which is very strange... ignore the scroll.
169 if (v != descendant || includeRootScroll) {
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700170 sPoint[0] -= v.getScrollX();
171 sPoint[1] -= v.getScrollY();
Sunny Goyal8cf47a52016-06-15 10:11:30 -0700172 }
173
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700174 v.getMatrix().mapPoints(sPoint);
175 sPoint[0] += v.getLeft();
176 sPoint[1] += v.getTop();
Sunny Goyal8cf47a52016-06-15 10:11:30 -0700177 scale *= v.getScaleX();
178
Winson Chungc763c4e2013-07-19 13:49:06 -0700179 v = (View) v.getParent();
180 }
Winson Chungc763c4e2013-07-19 13:49:06 -0700181
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700182 coord[0] = Math.round(sPoint[0]);
183 coord[1] = Math.round(sPoint[1]);
Winson Chungc763c4e2013-07-19 13:49:06 -0700184 return scale;
185 }
186
187 /**
Sunny Goyale8b5d202016-06-13 16:36:59 -0700188 * Inverse of {@link #getDescendantCoordRelativeToAncestor(View, View, int[], boolean)}.
Winson Chungc763c4e2013-07-19 13:49:06 -0700189 */
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700190 public static void mapCoordInSelfToDescendant(View descendant, View root, int[] coord) {
191 sMatrix.reset();
Winson Chungc763c4e2013-07-19 13:49:06 -0700192 View v = descendant;
193 while(v != root) {
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700194 sMatrix.postTranslate(-v.getScrollX(), -v.getScrollY());
195 sMatrix.postConcat(v.getMatrix());
196 sMatrix.postTranslate(v.getLeft(), v.getTop());
Winson Chungc763c4e2013-07-19 13:49:06 -0700197 v = (View) v.getParent();
198 }
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700199 sMatrix.postTranslate(-v.getScrollX(), -v.getScrollY());
200 sMatrix.invert(sInverseMatrix);
Winson Chungc763c4e2013-07-19 13:49:06 -0700201
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700202 sPoint[0] = coord[0];
203 sPoint[1] = coord[1];
204 sInverseMatrix.mapPoints(sPoint);
205 coord[0] = Math.round(sPoint[0]);
206 coord[1] = Math.round(sPoint[1]);
Winson Chungc763c4e2013-07-19 13:49:06 -0700207 }
208
Jason Monk02dd7ae2014-04-15 15:23:31 -0400209 /**
210 * Utility method to determine whether the given point, in local coordinates,
211 * is inside the view, where the area of the view is expanded by the slop factor.
212 * This method is called while processing touch-move events to determine if the event
213 * is still within the view.
214 */
215 public static boolean pointInView(View v, float localX, float localY, float slop) {
216 return localX >= -slop && localY >= -slop && localX < (v.getWidth() + slop) &&
217 localY < (v.getHeight() + slop);
218 }
219
Sunny Goyala52ecb02016-12-16 15:04:51 -0800220 public static int[] getCenterDeltaInScreenSpace(View v0, View v1) {
Adam Cohen63f1ec02014-08-12 09:23:13 -0700221 v0.getLocationInWindow(sLoc0);
222 v1.getLocationInWindow(sLoc1);
223
224 sLoc0[0] += (v0.getMeasuredWidth() * v0.getScaleX()) / 2;
225 sLoc0[1] += (v0.getMeasuredHeight() * v0.getScaleY()) / 2;
226 sLoc1[0] += (v1.getMeasuredWidth() * v1.getScaleX()) / 2;
227 sLoc1[1] += (v1.getMeasuredHeight() * v1.getScaleY()) / 2;
Sunny Goyala52ecb02016-12-16 15:04:51 -0800228 return new int[] {sLoc1[0] - sLoc0[0], sLoc1[1] - sLoc0[1]};
Adam Cohen63f1ec02014-08-12 09:23:13 -0700229 }
230
Sunny Goyalb1e2e292018-02-21 10:14:30 -0800231 public static void scaleRectFAboutCenter(RectF r, float scale) {
232 if (scale != 1.0f) {
233 float cx = r.centerX();
234 float cy = r.centerY();
235 r.offset(-cx, -cy);
236 r.left = r.left * scale;
237 r.top = r.top * scale ;
238 r.right = r.right * scale;
239 r.bottom = r.bottom * scale;
240 r.offset(cx, cy);
241 }
242 }
243
Jon Miranda6f6a06a2016-12-15 11:24:18 -0800244 public static void scaleRectAboutCenter(Rect r, float scale) {
245 if (scale != 1.0f) {
246 int cx = r.centerX();
247 int cy = r.centerY();
248 r.offset(-cx, -cy);
Winson Chung3e803c72018-01-29 11:16:32 -0800249 scaleRect(r, scale);
250 r.offset(cx, cy);
251 }
252 }
Jon Miranda6f6a06a2016-12-15 11:24:18 -0800253
Winson Chung3e803c72018-01-29 11:16:32 -0800254 public static void scaleRect(Rect r, float scale) {
255 if (scale != 1.0f) {
Jon Miranda6f6a06a2016-12-15 11:24:18 -0800256 r.left = (int) (r.left * scale + 0.5f);
257 r.top = (int) (r.top * scale + 0.5f);
258 r.right = (int) (r.right * scale + 0.5f);
259 r.bottom = (int) (r.bottom * scale + 0.5f);
Jon Miranda6f6a06a2016-12-15 11:24:18 -0800260 }
261 }
262
Winson Chung3e803c72018-01-29 11:16:32 -0800263 public static void insetRect(Rect r, Rect insets) {
264 r.left = Math.min(r.right, r.left + insets.left);
265 r.top = Math.min(r.bottom, r.top + insets.top);
266 r.right = Math.max(r.left, r.right - insets.right);
267 r.bottom = Math.max(r.top, r.bottom - insets.bottom);
268 }
269
Jon Miranda6f6a06a2016-12-15 11:24:18 -0800270 public static float shrinkRect(Rect r, float scaleX, float scaleY) {
Jon Mirandae96798e2016-12-07 12:10:44 -0800271 float scale = Math.min(Math.min(scaleX, scaleY), 1.0f);
272 if (scale < 1.0f) {
273 int deltaX = (int) (r.width() * (scaleX - scale) * 0.5f);
274 r.left += deltaX;
275 r.right -= deltaX;
Sunny Goyal106bf642015-07-16 12:18:06 -0700276
Jon Mirandae96798e2016-12-07 12:10:44 -0800277 int deltaY = (int) (r.height() * (scaleY - scale) * 0.5f);
278 r.top += deltaY;
279 r.bottom -= deltaY;
Sunny Goyal106bf642015-07-16 12:18:06 -0700280 }
Jon Mirandae96798e2016-12-07 12:10:44 -0800281 return scale;
Winson Chung3a6e7f32013-10-09 15:50:52 -0700282 }
283
Tony Wickhamb45444b2018-05-18 16:57:01 -0700284 /**
285 * Maps t from one range to another range.
286 * @param t The value to map.
287 * @param fromMin The lower bound of the range that t is being mapped from.
288 * @param fromMax The upper bound of the range that t is being mapped from.
289 * @param toMin The lower bound of the range that t is being mapped to.
290 * @param toMax The upper bound of the range that t is being mapped to.
291 * @return The mapped value of t.
292 */
Sunny Goyal0f3af752018-06-08 13:01:04 -0700293 public static float mapToRange(float t, float fromMin, float fromMax, float toMin, float toMax,
294 Interpolator interpolator) {
Tony Wickhamb45444b2018-05-18 16:57:01 -0700295 if (fromMin == fromMax || toMin == toMax) {
296 Log.e(TAG, "mapToRange: range has 0 length");
297 return toMin;
298 }
299 float progress = Math.abs(t - fromMin) / Math.abs(fromMax - fromMin);
Sunny Goyal0f3af752018-06-08 13:01:04 -0700300 return mapRange(interpolator.getInterpolation(progress), toMin, toMax);
Tony Wickhamb45444b2018-05-18 16:57:01 -0700301 }
302
Winson Chung3e803c72018-01-29 11:16:32 -0800303 public static float mapRange(float value, float min, float max) {
304 return min + (value * (max - min));
305 }
306
Sunny Goyal0e947fb2017-05-19 12:21:50 -0700307 public static boolean isSystemApp(Context context, Intent intent) {
Sunny Goyalc5c60ad2014-07-14 12:02:01 -0700308 PackageManager pm = context.getPackageManager();
309 ComponentName cn = intent.getComponent();
310 String packageName = null;
311 if (cn == null) {
312 ResolveInfo info = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
313 if ((info != null) && (info.activityInfo != null)) {
314 packageName = info.activityInfo.packageName;
315 }
316 } else {
317 packageName = cn.getPackageName();
318 }
319 if (packageName != null) {
320 try {
321 PackageInfo info = pm.getPackageInfo(packageName, 0);
322 return (info != null) && (info.applicationInfo != null) &&
323 ((info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0);
324 } catch (NameNotFoundException e) {
325 return false;
326 }
327 } else {
328 return false;
329 }
330 }
Sunny Goyal95abbb32014-08-04 10:53:22 -0700331
Sunny Goyal0fe505b2014-08-06 09:55:36 -0700332 /*
333 * Finds a system apk which had a broadcast receiver listening to a particular action.
334 * @param action intent action used to find the apk
335 * @return a pair of apk package name and the resources.
336 */
337 static Pair<String, Resources> findSystemApk(String action, PackageManager pm) {
338 final Intent intent = new Intent(action);
339 for (ResolveInfo info : pm.queryBroadcastReceivers(intent, 0)) {
340 if (info.activityInfo != null &&
341 (info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
342 final String packageName = info.activityInfo.packageName;
343 try {
344 final Resources res = pm.getResourcesForApplication(packageName);
345 return Pair.create(packageName, res);
346 } catch (NameNotFoundException e) {
347 Log.w(TAG, "Failed to find resources for " + packageName);
348 }
349 }
350 }
351 return null;
352 }
Sunny Goyalfafca522014-11-03 11:30:01 -0800353
Sunny Goyal594d76d2014-11-06 10:12:54 -0800354 /**
Sunny Goyal5b0e6692015-03-19 14:31:19 -0700355 * Compresses the bitmap to a byte array for serialization.
356 */
357 public static byte[] flattenBitmap(Bitmap bitmap) {
358 // Try go guesstimate how much space the icon will take when serialized
359 // to avoid unnecessary allocations/copies during the write.
360 int size = bitmap.getWidth() * bitmap.getHeight() * 4;
361 ByteArrayOutputStream out = new ByteArrayOutputStream(size);
362 try {
363 bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
364 out.flush();
365 out.close();
366 return out.toByteArray();
367 } catch (IOException e) {
368 Log.w(TAG, "Could not write bitmap");
369 return null;
370 }
371 }
372
Sunny Goyalf7a29e82015-04-24 15:20:43 -0700373 /**
Winson Chung82b016c2015-05-08 17:00:10 -0700374 * Trims the string, removing all whitespace at the beginning and end of the string.
375 * Non-breaking whitespaces are also removed.
376 */
377 public static String trim(CharSequence s) {
Winson Chungafa77e92015-05-15 12:04:03 -0700378 if (s == null) {
379 return null;
380 }
381
Winson Chung82b016c2015-05-08 17:00:10 -0700382 // Just strip any sequence of whitespace or java space characters from the beginning and end
383 Matcher m = sTrimPattern.matcher(s);
384 return m.replaceAll("$1");
385 }
Sunny Goyal70660032015-05-14 00:07:08 -0700386
Winson Chung2c6e5cc2015-06-01 14:38:24 -0700387 /**
388 * Calculates the height of a given string at a specific text size.
389 */
Sunny Goyalbaec6ff2016-09-14 11:26:21 -0700390 public static int calculateTextHeight(float textSizePx) {
Winson Chung2c6e5cc2015-06-01 14:38:24 -0700391 Paint p = new Paint();
392 p.setTextSize(textSizePx);
393 Paint.FontMetrics fm = p.getFontMetrics();
Sunny Goyalbaec6ff2016-09-14 11:26:21 -0700394 return (int) Math.ceil(fm.bottom - fm.top);
Winson Chung2c6e5cc2015-06-01 14:38:24 -0700395 }
396
Winson Chungb1777442015-06-16 13:35:04 -0700397 /**
398 * Convenience println with multiple args.
399 */
400 public static void println(String key, Object... args) {
401 StringBuilder b = new StringBuilder();
402 b.append(key);
403 b.append(": ");
404 boolean isFirstArgument = true;
405 for (Object arg : args) {
406 if (isFirstArgument) {
407 isFirstArgument = false;
408 } else {
409 b.append(", ");
410 }
411 b.append(arg);
412 }
413 System.out.println(b.toString());
414 }
415
Sunny Goyal70660032015-05-14 00:07:08 -0700416 public static boolean isRtl(Resources res) {
Sunny Goyala52ecb02016-12-16 15:04:51 -0800417 return res.getConfiguration().getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
Sunny Goyal70660032015-05-14 00:07:08 -0700418 }
Hyunyoung Song2bd3d7d2015-05-21 13:04:53 -0700419
Sunny Goyal5c97f512015-05-19 16:03:28 -0700420 /**
421 * Returns true if the intent is a valid launch intent for a launcher activity of an app.
422 * This is used to identify shortcuts which are different from the ones exposed by the
423 * applications' manifest file.
424 *
425 * @param launchIntent The intent that will be launched when the shortcut is clicked.
426 */
427 public static boolean isLauncherAppTarget(Intent launchIntent) {
Sunny Goyal4e5cc642015-06-25 16:37:44 -0700428 if (launchIntent != null
Sunny Goyal5c97f512015-05-19 16:03:28 -0700429 && Intent.ACTION_MAIN.equals(launchIntent.getAction())
430 && launchIntent.getComponent() != null
431 && launchIntent.getCategories() != null
432 && launchIntent.getCategories().size() == 1
433 && launchIntent.hasCategory(Intent.CATEGORY_LAUNCHER)
Sunny Goyal4e5cc642015-06-25 16:37:44 -0700434 && TextUtils.isEmpty(launchIntent.getDataString())) {
435 // An app target can either have no extra or have ItemInfo.EXTRA_PROFILE.
436 Bundle extras = launchIntent.getExtras();
Sunny Goyal24bb66a2017-03-21 15:12:01 -0700437 return extras == null || extras.keySet().isEmpty();
438 }
Sunny Goyal4e5cc642015-06-25 16:37:44 -0700439 return false;
Sunny Goyal5c97f512015-05-19 16:03:28 -0700440 }
Adam Cohen2e6da152015-05-06 11:42:25 -0700441
442 public static float dpiFromPx(int size, DisplayMetrics metrics){
443 float densityRatio = (float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT;
444 return (size / densityRatio);
445 }
446 public static int pxFromDp(float size, DisplayMetrics metrics) {
447 return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
448 size, metrics));
449 }
450 public static int pxFromSp(float size, DisplayMetrics metrics) {
451 return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
452 size, metrics));
453 }
Sunny Goyalb1622cc2015-06-10 16:00:42 -0700454
455 public static String createDbSelectionQuery(String columnName, Iterable<?> values) {
456 return String.format(Locale.ENGLISH, "%s IN (%s)", columnName, TextUtils.join(", ", values));
457 }
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700458
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700459 public static boolean isBootCompleted() {
Sunny Goyaldfc8b662016-08-30 12:05:48 -0700460 return "1".equals(getSystemProperty("sys.boot_completed", "1"));
461 }
462
463 public static String getSystemProperty(String property, String defaultValue) {
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700464 try {
465 Class clazz = Class.forName("android.os.SystemProperties");
466 Method getter = clazz.getDeclaredMethod("get", String.class);
Sunny Goyaldfc8b662016-08-30 12:05:48 -0700467 String value = (String) getter.invoke(null, property);
468 if (!TextUtils.isEmpty(value)) {
469 return value;
470 }
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700471 } catch (Exception e) {
472 Log.d(TAG, "Unable to read system properties");
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700473 }
Sunny Goyaldfc8b662016-08-30 12:05:48 -0700474 return defaultValue;
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700475 }
Tony Wickham29d853c2015-09-08 10:35:56 -0700476
477 /**
478 * Ensures that a value is within given bounds. Specifically:
479 * If value is less than lowerBound, return lowerBound; else if value is greater than upperBound,
480 * return upperBound; else return value unchanged.
481 */
Tony Wickhamf549dab2016-05-16 09:54:06 -0700482 public static int boundToRange(int value, int lowerBound, int upperBound) {
483 return Math.max(lowerBound, Math.min(value, upperBound));
484 }
485
486 /**
487 * @see #boundToRange(int, int, int).
488 */
489 public static float boundToRange(float value, float lowerBound, float upperBound) {
Tony Wickham29d853c2015-09-08 10:35:56 -0700490 return Math.max(lowerBound, Math.min(value, upperBound));
491 }
Sunny Goyal9d438082015-09-25 11:50:16 -0700492
Sunny Goyale78e3d72015-09-24 11:23:31 -0700493 /**
Tony Wickhamb45444b2018-05-18 16:57:01 -0700494 * @see #boundToRange(int, int, int).
495 */
496 public static long boundToRange(long value, long lowerBound, long upperBound) {
497 return Math.max(lowerBound, Math.min(value, upperBound));
498 }
499
500 /**
Sunny Goyale78e3d72015-09-24 11:23:31 -0700501 * Wraps a message with a TTS span, so that a different message is spoken than
502 * what is getting displayed.
503 * @param msg original message
504 * @param ttsMsg message to be spoken
505 */
Sunny Goyale78e3d72015-09-24 11:23:31 -0700506 public static CharSequence wrapForTts(CharSequence msg, String ttsMsg) {
Sunny Goyala52ecb02016-12-16 15:04:51 -0800507 SpannableString spanned = new SpannableString(msg);
508 spanned.setSpan(new TtsSpan.TextBuilder(ttsMsg).build(),
509 0, spanned.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
510 return spanned;
Sunny Goyale78e3d72015-09-24 11:23:31 -0700511 }
Winson12fb9fc2015-10-01 15:34:08 -0700512
513 /**
514 * Replacement for Long.compare() which was added in API level 19.
515 */
516 public static int longCompare(long lhs, long rhs) {
517 return lhs < rhs ? -1 : (lhs == rhs ? 0 : 1);
518 }
Sunny Goyalf7258242015-10-19 16:59:07 -0700519
520 public static SharedPreferences getPrefs(Context context) {
521 return context.getSharedPreferences(
522 LauncherFiles.SHARED_PREFERENCES_KEY, Context.MODE_PRIVATE);
523 }
Tony Wickham112ac952015-11-12 12:31:50 -0800524
Sunny Goyal9d887a22017-06-08 14:00:43 -0700525 public static SharedPreferences getDevicePrefs(Context context) {
526 return context.getSharedPreferences(
527 LauncherFiles.DEVICE_PREFERENCES_KEY, Context.MODE_PRIVATE);
528 }
529
Tony Wickham8155fa22018-05-18 17:18:49 -0700530 public static boolean isPowerSaverPreventingAnimation(Context context) {
531 if (ATLEAST_P) {
532 // Battery saver mode no longer prevents animations.
533 return false;
534 }
Tony Wickham112ac952015-11-12 12:31:50 -0800535 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
Sunny Goyala52ecb02016-12-16 15:04:51 -0800536 return powerManager.isPowerSaveMode();
Tony Wickham112ac952015-11-12 12:31:50 -0800537 }
Sunny Goyale1483fb2016-01-08 12:16:15 -0800538
Hyunyoung Song0de01172016-10-05 16:27:48 -0700539 public static boolean isWallpaperAllowed(Context context) {
Sunny Goyalf5e37442016-11-02 10:31:24 -0700540 if (ATLEAST_NOUGAT) {
Sunny Goyal1ed6c4a2016-04-21 15:16:11 -0700541 try {
542 WallpaperManager wm = context.getSystemService(WallpaperManager.class);
Kenny Guy367da9f2016-05-25 19:22:14 +0100543 return (Boolean) wm.getClass().getDeclaredMethod("isSetWallpaperAllowed")
Sunny Goyal1ed6c4a2016-04-21 15:16:11 -0700544 .invoke(wm);
545 } catch (Exception e) { }
546 }
547 return true;
548 }
549
Sunny Goyal713edfc2016-05-06 09:58:34 -0700550 public static void closeSilently(Closeable c) {
551 if (c != null) {
552 try {
553 c.close();
554 } catch (IOException e) {
Sunny Goyal3d706ad2017-03-06 16:56:39 -0800555 if (FeatureFlags.IS_DOGFOOD_BUILD) {
Sunny Goyal713edfc2016-05-06 09:58:34 -0700556 Log.d(TAG, "Error closing", e);
557 }
558 }
559 }
560 }
561
Sunny Goyale1483fb2016-01-08 12:16:15 -0800562 /**
Sunny Goyal3f732192016-05-13 13:48:44 -0700563 * Returns true if {@param original} contains all entries defined in {@param updates} and
564 * have the same value.
565 * The comparison uses {@link Object#equals(Object)} to compare the values.
566 */
567 public static boolean containsAll(Bundle original, Bundle updates) {
568 for (String key : updates.keySet()) {
569 Object value1 = updates.get(key);
570 Object value2 = original.get(key);
571 if (value1 == null) {
572 if (value2 != null) {
573 return false;
574 }
575 } else if (!value1.equals(value2)) {
576 return false;
577 }
578 }
579 return true;
580 }
581
Tony Wickham1bce7fd2016-04-28 17:39:03 -0700582 /** Returns whether the collection is null or empty. */
583 public static boolean isEmpty(Collection c) {
584 return c == null || c.isEmpty();
585 }
586
Sunny Goyal712ee532016-11-04 10:19:58 -0700587 public static boolean isBinderSizeError(Exception e) {
588 return e.getCause() instanceof TransactionTooLargeException
589 || e.getCause() instanceof DeadObjectException;
590 }
Sunny Goyalab121c12016-12-02 19:29:43 +0530591
Tony Wickham580edcf2017-02-09 08:28:52 -0800592 /**
593 * Returns a HashSet with a single element. We use this instead of Collections.singleton()
594 * because HashSet ensures all operations, such as remove, are supported.
595 */
596 public static <T> HashSet<T> singletonHashSet(T elem) {
597 HashSet<T> hashSet = new HashSet<>(1);
598 hashSet.add(elem);
599 return hashSet;
600 }
Mario Bertschler48198d02017-01-30 17:05:24 -0800601
Sunny Goyal3483c522018-04-12 11:23:33 -0700602 /**
603 * Utility method to post a runnable on the handler, skipping the synchronization barriers.
604 */
605 public static void postAsyncCallback(Handler handler, Runnable callback) {
606 Message msg = Message.obtain(handler, callback);
607 msg.setAsynchronous(true);
608 handler.sendMessage(msg);
609 }
Vadim Tryshevff3fa342018-07-25 16:29:06 -0700610
611 public interface Consumer<T> {
612 void accept(T var1);
613 }
The Android Open Source Project31dd5032009-03-03 19:32:27 -0800614}