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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 Goyal1ed6c4a2016-04-21 15:16:11 -070019import android.app.WallpaperManager;
Sunny Goyalc5c60ad2014-07-14 12:02:01 -070020import android.content.ComponentName;
Winson Chungaafa03c2010-06-11 17:34:16 -070021import android.content.Context;
Michael Jurkaa805e1a2013-08-22 15:00:33 +020022import android.content.Intent;
Rahul Chaturvedi7fc77ca2015-05-19 18:02:16 -070023import android.content.SharedPreferences;
Sunny Goyalc5c60ad2014-07-14 12:02:01 -070024import android.content.pm.ApplicationInfo;
25import android.content.pm.PackageInfo;
26import android.content.pm.PackageManager;
27import android.content.pm.PackageManager.NameNotFoundException;
28import android.content.pm.ResolveInfo;
Winson Chungaafa03c2010-06-11 17:34:16 -070029import android.content.res.Resources;
The Android Open Source Project31dd5032009-03-03 19:32:27 -080030import android.graphics.Bitmap;
Winson Chungc763c4e2013-07-19 13:49:06 -070031import android.graphics.Matrix;
The Android Open Source Project31dd5032009-03-03 19:32:27 -080032import android.graphics.Paint;
33import android.graphics.Rect;
Sunny Goyalb1e2e292018-02-21 10:14:30 -080034import android.graphics.RectF;
Sandeep Siddhartha2efc7d92014-05-16 17:21:15 -070035import android.os.Build;
Sunny Goyal4e5cc642015-06-25 16:37:44 -070036import android.os.Bundle;
Sunny Goyal712ee532016-11-04 10:19:58 -070037import android.os.DeadObjectException;
Tony Wickham112ac952015-11-12 12:31:50 -080038import android.os.PowerManager;
Sunny Goyal712ee532016-11-04 10:19:58 -070039import android.os.TransactionTooLargeException;
Tony Mak6eeb0402018-01-03 14:41:31 +000040import android.support.v4.os.BuildCompat;
Sunny Goyale78e3d72015-09-24 11:23:31 -070041import android.text.Spannable;
42import android.text.SpannableString;
Sunny Goyal5c97f512015-05-19 16:03:28 -070043import android.text.TextUtils;
Sunny Goyale78e3d72015-09-24 11:23:31 -070044import android.text.style.TtsSpan;
Adam Cohen2e6da152015-05-06 11:42:25 -070045import android.util.DisplayMetrics;
Michael Jurkaa805e1a2013-08-22 15:00:33 +020046import android.util.Log;
Sunny Goyal0fe505b2014-08-06 09:55:36 -070047import android.util.Pair;
Adam Cohen2e6da152015-05-06 11:42:25 -070048import android.util.TypedValue;
Winson Chungc763c4e2013-07-19 13:49:06 -070049import android.view.View;
Sunny Goyalb1622cc2015-06-10 16:00:42 -070050
Sunny Goyal3d706ad2017-03-06 16:56:39 -080051import com.android.launcher3.config.FeatureFlags;
Sunny Goyal6c56c682015-07-16 14:09:05 -070052
Sunny Goyal5b0e6692015-03-19 14:31:19 -070053import java.io.ByteArrayOutputStream;
Sunny Goyal713edfc2016-05-06 09:58:34 -070054import java.io.Closeable;
Sunny Goyal5b0e6692015-03-19 14:31:19 -070055import java.io.IOException;
Sunny Goyalab121c12016-12-02 19:29:43 +053056import java.lang.reflect.InvocationTargetException;
Sunny Goyal25aba0a2015-07-16 15:07:47 -070057import java.lang.reflect.Method;
Tony Wickham1bce7fd2016-04-28 17:39:03 -070058import java.util.Collection;
Tony Wickham580edcf2017-02-09 08:28:52 -080059import java.util.HashSet;
Sunny Goyalb1622cc2015-06-10 16:00:42 -070060import java.util.Locale;
Sunny Goyal8ac727b2015-09-23 15:38:09 -070061import java.util.concurrent.Executor;
62import java.util.concurrent.LinkedBlockingQueue;
63import java.util.concurrent.ThreadPoolExecutor;
64import java.util.concurrent.TimeUnit;
Winson Chung82b016c2015-05-08 17:00:10 -070065import java.util.regex.Matcher;
66import java.util.regex.Pattern;
The Android Open Source Project31dd5032009-03-03 19:32:27 -080067
68/**
69 * Various utilities shared amongst the Launcher's classes.
70 */
Mathew Inwood72fbec12013-11-19 15:45:07 +000071public final class Utilities {
Rahul Chaturvedi7fc77ca2015-05-19 18:02:16 -070072
Joe Onorato1291a8c2009-09-15 15:07:25 -040073 private static final String TAG = "Launcher.Utilities";
74
Winson Chung82b016c2015-05-08 17:00:10 -070075 private static final Pattern sTrimPattern =
76 Pattern.compile("^[\\s|\\p{javaSpaceChar}]*(.*)[\\s|\\p{javaSpaceChar}]*$");
77
Sunny Goyal53d7ee42015-05-22 12:25:45 -070078 private static final int[] sLoc0 = new int[2];
79 private static final int[] sLoc1 = new int[2];
Sunny Goyal5e0e94f2016-10-28 10:01:00 -070080 private static final float[] sPoint = new float[2];
81 private static final Matrix sMatrix = new Matrix();
82 private static final Matrix sInverseMatrix = new Matrix();
Michael Jurka7ad868b2013-12-12 15:04:25 +010083
Tony Mak6eeb0402018-01-03 14:41:31 +000084 public static final boolean ATLEAST_P = BuildCompat.isAtLeastP();
85
Hyunyoung Songe24cb632017-09-11 11:18:03 -070086 public static final boolean ATLEAST_OREO_MR1 =
87 Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1;
88
89 public static final boolean ATLEAST_OREO =
90 Build.VERSION.SDK_INT >= Build.VERSION_CODES.O;
Sunny Goyaldcc0ba22016-11-02 11:22:39 -070091
Sunny Goyalf5e37442016-11-02 10:31:24 -070092 public static final boolean ATLEAST_NOUGAT_MR1 =
Hyunyoung Songe24cb632017-09-11 11:18:03 -070093 Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1;
Sunny Goyal9994b2b2016-06-23 14:17:24 -070094
Sunny Goyalf5e37442016-11-02 10:31:24 -070095 public static final boolean ATLEAST_NOUGAT =
Hyunyoung Songe24cb632017-09-11 11:18:03 -070096 Build.VERSION.SDK_INT >= Build.VERSION_CODES.N;
Sunny Goyale2ec8a32016-09-01 11:00:49 -070097
Winsonbe9798b2016-07-20 12:55:49 -070098 public static final boolean ATLEAST_MARSHMALLOW =
99 Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
Sunny Goyal9fc953b2015-08-17 12:24:25 -0700100
101 public static final boolean ATLEAST_LOLLIPOP_MR1 =
102 Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1;
103
Sunny Goyal49f19f02017-01-05 14:36:02 -0800104 /**
105 * Indicates if the device has a debug build. Should only be used to store additional info or
106 * add extra logging and not for changing the app behavior.
107 */
Matthew Ngf0f00b32018-04-09 16:20:42 -0700108 public static final boolean IS_DEBUG_DEVICE = Build.TYPE.toLowerCase().contains("debug")
109 || Build.TYPE.toLowerCase().equals("eng");
Sunny Goyal49f19f02017-01-05 14:36:02 -0800110
Sunny Goyal6f866092016-03-17 17:04:15 -0700111 // An intent extra to indicate the horizontal scroll of the wallpaper.
112 public static final String EXTRA_WALLPAPER_OFFSET = "com.android.launcher3.WALLPAPER_OFFSET";
113
Tony629a67c2017-06-02 15:43:26 -0700114 public static final int COLOR_EXTRACTION_JOB_ID = 1;
Sunny Goyal82315962017-06-08 14:27:49 -0700115 public static final int WALLPAPER_COMPAT_JOB_ID = 2;
Tony629a67c2017-06-02 15:43:26 -0700116
Sunny Goyal8ac727b2015-09-23 15:38:09 -0700117 // These values are same as that in {@link AsyncTask}.
118 private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
119 private static final int CORE_POOL_SIZE = CPU_COUNT + 1;
120 private static final int MAXIMUM_POOL_SIZE = CPU_COUNT * 2 + 1;
121 private static final int KEEP_ALIVE = 1;
122 /**
123 * An {@link Executor} to be used with async task with no limit on the queue size.
124 */
125 public static final Executor THREAD_POOL_EXECUTOR = new ThreadPoolExecutor(
126 CORE_POOL_SIZE, MAXIMUM_POOL_SIZE, KEEP_ALIVE,
127 TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>());
128
Sunny Goyal4bbf4192014-11-11 12:23:59 -0800129 public static boolean isPropertyEnabled(String propertyName) {
Michael Jurka7ad868b2013-12-12 15:04:25 +0100130 return Log.isLoggable(propertyName, Log.VERBOSE);
131 }
132
The Android Open Source Project31dd5032009-03-03 19:32:27 -0800133 /**
Winson Chungc763c4e2013-07-19 13:49:06 -0700134 * Given a coordinate relative to the descendant, find the coordinate in a parent view's
135 * coordinates.
136 *
137 * @param descendant The descendant to which the passed coordinate is relative.
Sunny Goyale8b5d202016-06-13 16:36:59 -0700138 * @param ancestor The root view to make the coordinates relative to.
Winson Chungc763c4e2013-07-19 13:49:06 -0700139 * @param coord The coordinate that we want mapped.
140 * @param includeRootScroll Whether or not to account for the scroll of the descendant:
141 * sometimes this is relevant as in a child's coordinates within the descendant.
142 * @return The factor by which this descendant is scaled relative to this DragLayer. Caution
143 * this scale factor is assumed to be equal in X and Y, and so if at any point this
144 * assumption fails, we will need to return a pair of scale factors.
145 */
Sunny Goyale8b5d202016-06-13 16:36:59 -0700146 public static float getDescendantCoordRelativeToAncestor(
147 View descendant, View ancestor, int[] coord, boolean includeRootScroll) {
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700148 sPoint[0] = coord[0];
149 sPoint[1] = coord[1];
150
Sunny Goyal8cf47a52016-06-15 10:11:30 -0700151 float scale = 1.0f;
Winson Chungc763c4e2013-07-19 13:49:06 -0700152 View v = descendant;
Sunny Goyale8b5d202016-06-13 16:36:59 -0700153 while(v != ancestor && v != null) {
Sunny Goyal8cf47a52016-06-15 10:11:30 -0700154 // For TextViews, scroll has a meaning which relates to the text position
155 // which is very strange... ignore the scroll.
156 if (v != descendant || includeRootScroll) {
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700157 sPoint[0] -= v.getScrollX();
158 sPoint[1] -= v.getScrollY();
Sunny Goyal8cf47a52016-06-15 10:11:30 -0700159 }
160
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700161 v.getMatrix().mapPoints(sPoint);
162 sPoint[0] += v.getLeft();
163 sPoint[1] += v.getTop();
Sunny Goyal8cf47a52016-06-15 10:11:30 -0700164 scale *= v.getScaleX();
165
Winson Chungc763c4e2013-07-19 13:49:06 -0700166 v = (View) v.getParent();
167 }
Winson Chungc763c4e2013-07-19 13:49:06 -0700168
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700169 coord[0] = Math.round(sPoint[0]);
170 coord[1] = Math.round(sPoint[1]);
Winson Chungc763c4e2013-07-19 13:49:06 -0700171 return scale;
172 }
173
174 /**
Sunny Goyale8b5d202016-06-13 16:36:59 -0700175 * Inverse of {@link #getDescendantCoordRelativeToAncestor(View, View, int[], boolean)}.
Winson Chungc763c4e2013-07-19 13:49:06 -0700176 */
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700177 public static void mapCoordInSelfToDescendant(View descendant, View root, int[] coord) {
178 sMatrix.reset();
Winson Chungc763c4e2013-07-19 13:49:06 -0700179 View v = descendant;
180 while(v != root) {
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700181 sMatrix.postTranslate(-v.getScrollX(), -v.getScrollY());
182 sMatrix.postConcat(v.getMatrix());
183 sMatrix.postTranslate(v.getLeft(), v.getTop());
Winson Chungc763c4e2013-07-19 13:49:06 -0700184 v = (View) v.getParent();
185 }
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700186 sMatrix.postTranslate(-v.getScrollX(), -v.getScrollY());
187 sMatrix.invert(sInverseMatrix);
Winson Chungc763c4e2013-07-19 13:49:06 -0700188
Sunny Goyal5e0e94f2016-10-28 10:01:00 -0700189 sPoint[0] = coord[0];
190 sPoint[1] = coord[1];
191 sInverseMatrix.mapPoints(sPoint);
192 coord[0] = Math.round(sPoint[0]);
193 coord[1] = Math.round(sPoint[1]);
Winson Chungc763c4e2013-07-19 13:49:06 -0700194 }
195
Jason Monk02dd7ae2014-04-15 15:23:31 -0400196 /**
197 * Utility method to determine whether the given point, in local coordinates,
198 * is inside the view, where the area of the view is expanded by the slop factor.
199 * This method is called while processing touch-move events to determine if the event
200 * is still within the view.
201 */
202 public static boolean pointInView(View v, float localX, float localY, float slop) {
203 return localX >= -slop && localY >= -slop && localX < (v.getWidth() + slop) &&
204 localY < (v.getHeight() + slop);
205 }
206
Sunny Goyala52ecb02016-12-16 15:04:51 -0800207 public static int[] getCenterDeltaInScreenSpace(View v0, View v1) {
Adam Cohen63f1ec02014-08-12 09:23:13 -0700208 v0.getLocationInWindow(sLoc0);
209 v1.getLocationInWindow(sLoc1);
210
211 sLoc0[0] += (v0.getMeasuredWidth() * v0.getScaleX()) / 2;
212 sLoc0[1] += (v0.getMeasuredHeight() * v0.getScaleY()) / 2;
213 sLoc1[0] += (v1.getMeasuredWidth() * v1.getScaleX()) / 2;
214 sLoc1[1] += (v1.getMeasuredHeight() * v1.getScaleY()) / 2;
Sunny Goyala52ecb02016-12-16 15:04:51 -0800215 return new int[] {sLoc1[0] - sLoc0[0], sLoc1[1] - sLoc0[1]};
Adam Cohen63f1ec02014-08-12 09:23:13 -0700216 }
217
Sunny Goyalb1e2e292018-02-21 10:14:30 -0800218 public static void scaleRectFAboutCenter(RectF r, float scale) {
219 if (scale != 1.0f) {
220 float cx = r.centerX();
221 float cy = r.centerY();
222 r.offset(-cx, -cy);
223 r.left = r.left * scale;
224 r.top = r.top * scale ;
225 r.right = r.right * scale;
226 r.bottom = r.bottom * scale;
227 r.offset(cx, cy);
228 }
229 }
230
Jon Miranda6f6a06a2016-12-15 11:24:18 -0800231 public static void scaleRectAboutCenter(Rect r, float scale) {
232 if (scale != 1.0f) {
233 int cx = r.centerX();
234 int cy = r.centerY();
235 r.offset(-cx, -cy);
Winson Chung3e803c72018-01-29 11:16:32 -0800236 scaleRect(r, scale);
237 r.offset(cx, cy);
238 }
239 }
Jon Miranda6f6a06a2016-12-15 11:24:18 -0800240
Winson Chung3e803c72018-01-29 11:16:32 -0800241 public static void scaleRect(Rect r, float scale) {
242 if (scale != 1.0f) {
Jon Miranda6f6a06a2016-12-15 11:24:18 -0800243 r.left = (int) (r.left * scale + 0.5f);
244 r.top = (int) (r.top * scale + 0.5f);
245 r.right = (int) (r.right * scale + 0.5f);
246 r.bottom = (int) (r.bottom * scale + 0.5f);
Jon Miranda6f6a06a2016-12-15 11:24:18 -0800247 }
248 }
249
Winson Chung3e803c72018-01-29 11:16:32 -0800250 public static void insetRect(Rect r, Rect insets) {
251 r.left = Math.min(r.right, r.left + insets.left);
252 r.top = Math.min(r.bottom, r.top + insets.top);
253 r.right = Math.max(r.left, r.right - insets.right);
254 r.bottom = Math.max(r.top, r.bottom - insets.bottom);
255 }
256
Jon Miranda6f6a06a2016-12-15 11:24:18 -0800257 public static float shrinkRect(Rect r, float scaleX, float scaleY) {
Jon Mirandae96798e2016-12-07 12:10:44 -0800258 float scale = Math.min(Math.min(scaleX, scaleY), 1.0f);
259 if (scale < 1.0f) {
260 int deltaX = (int) (r.width() * (scaleX - scale) * 0.5f);
261 r.left += deltaX;
262 r.right -= deltaX;
Sunny Goyal106bf642015-07-16 12:18:06 -0700263
Jon Mirandae96798e2016-12-07 12:10:44 -0800264 int deltaY = (int) (r.height() * (scaleY - scale) * 0.5f);
265 r.top += deltaY;
266 r.bottom -= deltaY;
Sunny Goyal106bf642015-07-16 12:18:06 -0700267 }
Jon Mirandae96798e2016-12-07 12:10:44 -0800268 return scale;
Winson Chung3a6e7f32013-10-09 15:50:52 -0700269 }
270
Winson Chung3e803c72018-01-29 11:16:32 -0800271 public static float mapRange(float value, float min, float max) {
272 return min + (value * (max - min));
273 }
274
Sunny Goyal0e947fb2017-05-19 12:21:50 -0700275 public static boolean isSystemApp(Context context, Intent intent) {
Sunny Goyalc5c60ad2014-07-14 12:02:01 -0700276 PackageManager pm = context.getPackageManager();
277 ComponentName cn = intent.getComponent();
278 String packageName = null;
279 if (cn == null) {
280 ResolveInfo info = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
281 if ((info != null) && (info.activityInfo != null)) {
282 packageName = info.activityInfo.packageName;
283 }
284 } else {
285 packageName = cn.getPackageName();
286 }
287 if (packageName != null) {
288 try {
289 PackageInfo info = pm.getPackageInfo(packageName, 0);
290 return (info != null) && (info.applicationInfo != null) &&
291 ((info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0);
292 } catch (NameNotFoundException e) {
293 return false;
294 }
295 } else {
296 return false;
297 }
298 }
Sunny Goyal95abbb32014-08-04 10:53:22 -0700299
Sunny Goyal0fe505b2014-08-06 09:55:36 -0700300 /*
301 * Finds a system apk which had a broadcast receiver listening to a particular action.
302 * @param action intent action used to find the apk
303 * @return a pair of apk package name and the resources.
304 */
305 static Pair<String, Resources> findSystemApk(String action, PackageManager pm) {
306 final Intent intent = new Intent(action);
307 for (ResolveInfo info : pm.queryBroadcastReceivers(intent, 0)) {
308 if (info.activityInfo != null &&
309 (info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
310 final String packageName = info.activityInfo.packageName;
311 try {
312 final Resources res = pm.getResourcesForApplication(packageName);
313 return Pair.create(packageName, res);
314 } catch (NameNotFoundException e) {
315 Log.w(TAG, "Failed to find resources for " + packageName);
316 }
317 }
318 }
319 return null;
320 }
Sunny Goyalfafca522014-11-03 11:30:01 -0800321
Sunny Goyal594d76d2014-11-06 10:12:54 -0800322 /**
Sunny Goyal5b0e6692015-03-19 14:31:19 -0700323 * Compresses the bitmap to a byte array for serialization.
324 */
325 public static byte[] flattenBitmap(Bitmap bitmap) {
326 // Try go guesstimate how much space the icon will take when serialized
327 // to avoid unnecessary allocations/copies during the write.
328 int size = bitmap.getWidth() * bitmap.getHeight() * 4;
329 ByteArrayOutputStream out = new ByteArrayOutputStream(size);
330 try {
331 bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
332 out.flush();
333 out.close();
334 return out.toByteArray();
335 } catch (IOException e) {
336 Log.w(TAG, "Could not write bitmap");
337 return null;
338 }
339 }
340
Sunny Goyalf7a29e82015-04-24 15:20:43 -0700341 /**
Winson Chung82b016c2015-05-08 17:00:10 -0700342 * Trims the string, removing all whitespace at the beginning and end of the string.
343 * Non-breaking whitespaces are also removed.
344 */
345 public static String trim(CharSequence s) {
Winson Chungafa77e92015-05-15 12:04:03 -0700346 if (s == null) {
347 return null;
348 }
349
Winson Chung82b016c2015-05-08 17:00:10 -0700350 // Just strip any sequence of whitespace or java space characters from the beginning and end
351 Matcher m = sTrimPattern.matcher(s);
352 return m.replaceAll("$1");
353 }
Sunny Goyal70660032015-05-14 00:07:08 -0700354
Winson Chung2c6e5cc2015-06-01 14:38:24 -0700355 /**
356 * Calculates the height of a given string at a specific text size.
357 */
Sunny Goyalbaec6ff2016-09-14 11:26:21 -0700358 public static int calculateTextHeight(float textSizePx) {
Winson Chung2c6e5cc2015-06-01 14:38:24 -0700359 Paint p = new Paint();
360 p.setTextSize(textSizePx);
361 Paint.FontMetrics fm = p.getFontMetrics();
Sunny Goyalbaec6ff2016-09-14 11:26:21 -0700362 return (int) Math.ceil(fm.bottom - fm.top);
Winson Chung2c6e5cc2015-06-01 14:38:24 -0700363 }
364
Winson Chungb1777442015-06-16 13:35:04 -0700365 /**
366 * Convenience println with multiple args.
367 */
368 public static void println(String key, Object... args) {
369 StringBuilder b = new StringBuilder();
370 b.append(key);
371 b.append(": ");
372 boolean isFirstArgument = true;
373 for (Object arg : args) {
374 if (isFirstArgument) {
375 isFirstArgument = false;
376 } else {
377 b.append(", ");
378 }
379 b.append(arg);
380 }
381 System.out.println(b.toString());
382 }
383
Sunny Goyal70660032015-05-14 00:07:08 -0700384 public static boolean isRtl(Resources res) {
Sunny Goyala52ecb02016-12-16 15:04:51 -0800385 return res.getConfiguration().getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
Sunny Goyal70660032015-05-14 00:07:08 -0700386 }
Hyunyoung Song2bd3d7d2015-05-21 13:04:53 -0700387
Sunny Goyal5c97f512015-05-19 16:03:28 -0700388 /**
389 * Returns true if the intent is a valid launch intent for a launcher activity of an app.
390 * This is used to identify shortcuts which are different from the ones exposed by the
391 * applications' manifest file.
392 *
393 * @param launchIntent The intent that will be launched when the shortcut is clicked.
394 */
395 public static boolean isLauncherAppTarget(Intent launchIntent) {
Sunny Goyal4e5cc642015-06-25 16:37:44 -0700396 if (launchIntent != null
Sunny Goyal5c97f512015-05-19 16:03:28 -0700397 && Intent.ACTION_MAIN.equals(launchIntent.getAction())
398 && launchIntent.getComponent() != null
399 && launchIntent.getCategories() != null
400 && launchIntent.getCategories().size() == 1
401 && launchIntent.hasCategory(Intent.CATEGORY_LAUNCHER)
Sunny Goyal4e5cc642015-06-25 16:37:44 -0700402 && TextUtils.isEmpty(launchIntent.getDataString())) {
403 // An app target can either have no extra or have ItemInfo.EXTRA_PROFILE.
404 Bundle extras = launchIntent.getExtras();
Sunny Goyal24bb66a2017-03-21 15:12:01 -0700405 return extras == null || extras.keySet().isEmpty();
406 }
Sunny Goyal4e5cc642015-06-25 16:37:44 -0700407 return false;
Sunny Goyal5c97f512015-05-19 16:03:28 -0700408 }
Adam Cohen2e6da152015-05-06 11:42:25 -0700409
410 public static float dpiFromPx(int size, DisplayMetrics metrics){
411 float densityRatio = (float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT;
412 return (size / densityRatio);
413 }
414 public static int pxFromDp(float size, DisplayMetrics metrics) {
415 return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
416 size, metrics));
417 }
418 public static int pxFromSp(float size, DisplayMetrics metrics) {
419 return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
420 size, metrics));
421 }
Sunny Goyalb1622cc2015-06-10 16:00:42 -0700422
423 public static String createDbSelectionQuery(String columnName, Iterable<?> values) {
424 return String.format(Locale.ENGLISH, "%s IN (%s)", columnName, TextUtils.join(", ", values));
425 }
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700426
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700427 public static boolean isBootCompleted() {
Sunny Goyaldfc8b662016-08-30 12:05:48 -0700428 return "1".equals(getSystemProperty("sys.boot_completed", "1"));
429 }
430
431 public static String getSystemProperty(String property, String defaultValue) {
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700432 try {
433 Class clazz = Class.forName("android.os.SystemProperties");
434 Method getter = clazz.getDeclaredMethod("get", String.class);
Sunny Goyaldfc8b662016-08-30 12:05:48 -0700435 String value = (String) getter.invoke(null, property);
436 if (!TextUtils.isEmpty(value)) {
437 return value;
438 }
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700439 } catch (Exception e) {
440 Log.d(TAG, "Unable to read system properties");
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700441 }
Sunny Goyaldfc8b662016-08-30 12:05:48 -0700442 return defaultValue;
Sunny Goyal25aba0a2015-07-16 15:07:47 -0700443 }
Tony Wickham29d853c2015-09-08 10:35:56 -0700444
445 /**
446 * Ensures that a value is within given bounds. Specifically:
447 * If value is less than lowerBound, return lowerBound; else if value is greater than upperBound,
448 * return upperBound; else return value unchanged.
449 */
Tony Wickhamf549dab2016-05-16 09:54:06 -0700450 public static int boundToRange(int value, int lowerBound, int upperBound) {
451 return Math.max(lowerBound, Math.min(value, upperBound));
452 }
453
454 /**
455 * @see #boundToRange(int, int, int).
456 */
457 public static float boundToRange(float value, float lowerBound, float upperBound) {
Tony Wickham29d853c2015-09-08 10:35:56 -0700458 return Math.max(lowerBound, Math.min(value, upperBound));
459 }
Sunny Goyal9d438082015-09-25 11:50:16 -0700460
Sunny Goyale78e3d72015-09-24 11:23:31 -0700461 /**
462 * Wraps a message with a TTS span, so that a different message is spoken than
463 * what is getting displayed.
464 * @param msg original message
465 * @param ttsMsg message to be spoken
466 */
Sunny Goyale78e3d72015-09-24 11:23:31 -0700467 public static CharSequence wrapForTts(CharSequence msg, String ttsMsg) {
Sunny Goyala52ecb02016-12-16 15:04:51 -0800468 SpannableString spanned = new SpannableString(msg);
469 spanned.setSpan(new TtsSpan.TextBuilder(ttsMsg).build(),
470 0, spanned.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
471 return spanned;
Sunny Goyale78e3d72015-09-24 11:23:31 -0700472 }
Winson12fb9fc2015-10-01 15:34:08 -0700473
474 /**
475 * Replacement for Long.compare() which was added in API level 19.
476 */
477 public static int longCompare(long lhs, long rhs) {
478 return lhs < rhs ? -1 : (lhs == rhs ? 0 : 1);
479 }
Sunny Goyalf7258242015-10-19 16:59:07 -0700480
481 public static SharedPreferences getPrefs(Context context) {
482 return context.getSharedPreferences(
483 LauncherFiles.SHARED_PREFERENCES_KEY, Context.MODE_PRIVATE);
484 }
Tony Wickham112ac952015-11-12 12:31:50 -0800485
Sunny Goyal9d887a22017-06-08 14:00:43 -0700486 public static SharedPreferences getDevicePrefs(Context context) {
487 return context.getSharedPreferences(
488 LauncherFiles.DEVICE_PREFERENCES_KEY, Context.MODE_PRIVATE);
489 }
490
Tony Wickham112ac952015-11-12 12:31:50 -0800491 public static boolean isPowerSaverOn(Context context) {
492 PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
Sunny Goyala52ecb02016-12-16 15:04:51 -0800493 return powerManager.isPowerSaveMode();
Tony Wickham112ac952015-11-12 12:31:50 -0800494 }
Sunny Goyale1483fb2016-01-08 12:16:15 -0800495
Hyunyoung Song0de01172016-10-05 16:27:48 -0700496 public static boolean isWallpaperAllowed(Context context) {
Sunny Goyalf5e37442016-11-02 10:31:24 -0700497 if (ATLEAST_NOUGAT) {
Sunny Goyal1ed6c4a2016-04-21 15:16:11 -0700498 try {
499 WallpaperManager wm = context.getSystemService(WallpaperManager.class);
Kenny Guy367da9f2016-05-25 19:22:14 +0100500 return (Boolean) wm.getClass().getDeclaredMethod("isSetWallpaperAllowed")
Sunny Goyal1ed6c4a2016-04-21 15:16:11 -0700501 .invoke(wm);
502 } catch (Exception e) { }
503 }
504 return true;
505 }
506
Sunny Goyal713edfc2016-05-06 09:58:34 -0700507 public static void closeSilently(Closeable c) {
508 if (c != null) {
509 try {
510 c.close();
511 } catch (IOException e) {
Sunny Goyal3d706ad2017-03-06 16:56:39 -0800512 if (FeatureFlags.IS_DOGFOOD_BUILD) {
Sunny Goyal713edfc2016-05-06 09:58:34 -0700513 Log.d(TAG, "Error closing", e);
514 }
515 }
516 }
517 }
518
Sunny Goyale1483fb2016-01-08 12:16:15 -0800519 /**
Sunny Goyal3f732192016-05-13 13:48:44 -0700520 * Returns true if {@param original} contains all entries defined in {@param updates} and
521 * have the same value.
522 * The comparison uses {@link Object#equals(Object)} to compare the values.
523 */
524 public static boolean containsAll(Bundle original, Bundle updates) {
525 for (String key : updates.keySet()) {
526 Object value1 = updates.get(key);
527 Object value2 = original.get(key);
528 if (value1 == null) {
529 if (value2 != null) {
530 return false;
531 }
532 } else if (!value1.equals(value2)) {
533 return false;
534 }
535 }
536 return true;
537 }
538
Tony Wickham1bce7fd2016-04-28 17:39:03 -0700539 /** Returns whether the collection is null or empty. */
540 public static boolean isEmpty(Collection c) {
541 return c == null || c.isEmpty();
542 }
543
Sunny Goyal712ee532016-11-04 10:19:58 -0700544 public static boolean isBinderSizeError(Exception e) {
545 return e.getCause() instanceof TransactionTooLargeException
546 || e.getCause() instanceof DeadObjectException;
547 }
Sunny Goyalab121c12016-12-02 19:29:43 +0530548
549 public static <T> T getOverrideObject(Class<T> clazz, Context context, int resId) {
550 String className = context.getString(resId);
551 if (!TextUtils.isEmpty(className)) {
552 try {
553 Class<?> cls = Class.forName(className);
554 return (T) cls.getDeclaredConstructor(Context.class).newInstance(context);
555 } catch (ClassNotFoundException | InstantiationException | IllegalAccessException
556 | ClassCastException | NoSuchMethodException | InvocationTargetException e) {
557 Log.e(TAG, "Bad overriden class", e);
558 }
559 }
560
561 try {
562 return clazz.newInstance();
563 } catch (InstantiationException|IllegalAccessException e) {
564 throw new RuntimeException(e);
565 }
566 }
Tony Wickham580edcf2017-02-09 08:28:52 -0800567
568 /**
569 * Returns a HashSet with a single element. We use this instead of Collections.singleton()
570 * because HashSet ensures all operations, such as remove, are supported.
571 */
572 public static <T> HashSet<T> singletonHashSet(T elem) {
573 HashSet<T> hashSet = new HashSet<>(1);
574 hashSet.add(elem);
575 return hashSet;
576 }
Mario Bertschler48198d02017-01-30 17:05:24 -0800577
The Android Open Source Project31dd5032009-03-03 19:32:27 -0800578}