The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 1 | /* |
| 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 Sandler | 325dc23 | 2013-06-05 22:57:57 -0400 | [diff] [blame] | 17 | package com.android.launcher3; |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 18 | |
Sunny Goyal | 1ed6c4a | 2016-04-21 15:16:11 -0700 | [diff] [blame] | 19 | import android.app.WallpaperManager; |
Sunny Goyal | c5c60ad | 2014-07-14 12:02:01 -0700 | [diff] [blame] | 20 | import android.content.ComponentName; |
Winson Chung | aafa03c | 2010-06-11 17:34:16 -0700 | [diff] [blame] | 21 | import android.content.Context; |
Michael Jurka | a805e1a | 2013-08-22 15:00:33 +0200 | [diff] [blame] | 22 | import android.content.Intent; |
Rahul Chaturvedi | 7fc77ca | 2015-05-19 18:02:16 -0700 | [diff] [blame] | 23 | import android.content.SharedPreferences; |
Sunny Goyal | c5c60ad | 2014-07-14 12:02:01 -0700 | [diff] [blame] | 24 | import android.content.pm.ApplicationInfo; |
| 25 | import android.content.pm.PackageInfo; |
| 26 | import android.content.pm.PackageManager; |
| 27 | import android.content.pm.PackageManager.NameNotFoundException; |
| 28 | import android.content.pm.ResolveInfo; |
Winson Chung | aafa03c | 2010-06-11 17:34:16 -0700 | [diff] [blame] | 29 | import android.content.res.Resources; |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 30 | import android.graphics.Bitmap; |
Sunny Goyal | 95abbb3 | 2014-08-04 10:53:22 -0700 | [diff] [blame] | 31 | import android.graphics.Color; |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 32 | import android.graphics.Matrix; |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 33 | import android.graphics.Paint; |
| 34 | import android.graphics.Rect; |
Sandeep Siddhartha | 2efc7d9 | 2014-05-16 17:21:15 -0700 | [diff] [blame] | 35 | import android.os.Build; |
Sunny Goyal | 4e5cc64 | 2015-06-25 16:37:44 -0700 | [diff] [blame] | 36 | import android.os.Bundle; |
Sunny Goyal | 712ee53 | 2016-11-04 10:19:58 -0700 | [diff] [blame] | 37 | import android.os.DeadObjectException; |
Tony Wickham | 112ac95 | 2015-11-12 12:31:50 -0800 | [diff] [blame] | 38 | import android.os.PowerManager; |
Sunny Goyal | 712ee53 | 2016-11-04 10:19:58 -0700 | [diff] [blame] | 39 | import android.os.TransactionTooLargeException; |
Sunny Goyal | e78e3d7 | 2015-09-24 11:23:31 -0700 | [diff] [blame] | 40 | import android.text.Spannable; |
| 41 | import android.text.SpannableString; |
Sunny Goyal | 5c97f51 | 2015-05-19 16:03:28 -0700 | [diff] [blame] | 42 | import android.text.TextUtils; |
Sunny Goyal | e78e3d7 | 2015-09-24 11:23:31 -0700 | [diff] [blame] | 43 | import android.text.style.TtsSpan; |
Adam Cohen | 2e6da15 | 2015-05-06 11:42:25 -0700 | [diff] [blame] | 44 | import android.util.DisplayMetrics; |
Michael Jurka | a805e1a | 2013-08-22 15:00:33 +0200 | [diff] [blame] | 45 | import android.util.Log; |
Sunny Goyal | 0fe505b | 2014-08-06 09:55:36 -0700 | [diff] [blame] | 46 | import android.util.Pair; |
Sunny Goyal | 95abbb3 | 2014-08-04 10:53:22 -0700 | [diff] [blame] | 47 | import android.util.SparseArray; |
Adam Cohen | 2e6da15 | 2015-05-06 11:42:25 -0700 | [diff] [blame] | 48 | import android.util.TypedValue; |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 49 | import android.view.View; |
Sunny Goyal | b1622cc | 2015-06-10 16:00:42 -0700 | [diff] [blame] | 50 | |
Sunny Goyal | 3d706ad | 2017-03-06 16:56:39 -0800 | [diff] [blame] | 51 | import com.android.launcher3.config.FeatureFlags; |
Sunny Goyal | 6c56c68 | 2015-07-16 14:09:05 -0700 | [diff] [blame] | 52 | |
Sunny Goyal | 5b0e669 | 2015-03-19 14:31:19 -0700 | [diff] [blame] | 53 | import java.io.ByteArrayOutputStream; |
Sunny Goyal | 713edfc | 2016-05-06 09:58:34 -0700 | [diff] [blame] | 54 | import java.io.Closeable; |
Sunny Goyal | 5b0e669 | 2015-03-19 14:31:19 -0700 | [diff] [blame] | 55 | import java.io.IOException; |
Sunny Goyal | ab121c1 | 2016-12-02 19:29:43 +0530 | [diff] [blame] | 56 | import java.lang.reflect.InvocationTargetException; |
Sunny Goyal | 25aba0a | 2015-07-16 15:07:47 -0700 | [diff] [blame] | 57 | import java.lang.reflect.Method; |
Tony Wickham | 1bce7fd | 2016-04-28 17:39:03 -0700 | [diff] [blame] | 58 | import java.util.Collection; |
Tony Wickham | 580edcf | 2017-02-09 08:28:52 -0800 | [diff] [blame] | 59 | import java.util.HashSet; |
Sunny Goyal | b1622cc | 2015-06-10 16:00:42 -0700 | [diff] [blame] | 60 | import java.util.Locale; |
Sunny Goyal | 8ac727b | 2015-09-23 15:38:09 -0700 | [diff] [blame] | 61 | import java.util.concurrent.Executor; |
| 62 | import java.util.concurrent.LinkedBlockingQueue; |
| 63 | import java.util.concurrent.ThreadPoolExecutor; |
| 64 | import java.util.concurrent.TimeUnit; |
Winson Chung | 82b016c | 2015-05-08 17:00:10 -0700 | [diff] [blame] | 65 | import java.util.regex.Matcher; |
| 66 | import java.util.regex.Pattern; |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 67 | |
| 68 | /** |
| 69 | * Various utilities shared amongst the Launcher's classes. |
| 70 | */ |
Mathew Inwood | 72fbec1 | 2013-11-19 15:45:07 +0000 | [diff] [blame] | 71 | public final class Utilities { |
Rahul Chaturvedi | 7fc77ca | 2015-05-19 18:02:16 -0700 | [diff] [blame] | 72 | |
Joe Onorato | 1291a8c | 2009-09-15 15:07:25 -0400 | [diff] [blame] | 73 | private static final String TAG = "Launcher.Utilities"; |
| 74 | |
Winson Chung | 82b016c | 2015-05-08 17:00:10 -0700 | [diff] [blame] | 75 | private static final Pattern sTrimPattern = |
| 76 | Pattern.compile("^[\\s|\\p{javaSpaceChar}]*(.*)[\\s|\\p{javaSpaceChar}]*$"); |
| 77 | |
Sunny Goyal | 53d7ee4 | 2015-05-22 12:25:45 -0700 | [diff] [blame] | 78 | private static final int[] sLoc0 = new int[2]; |
| 79 | private static final int[] sLoc1 = new int[2]; |
Sunny Goyal | 5e0e94f | 2016-10-28 10:01:00 -0700 | [diff] [blame] | 80 | 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 Jurka | 7ad868b | 2013-12-12 15:04:25 +0100 | [diff] [blame] | 83 | |
Hyunyoung Song | e24cb63 | 2017-09-11 11:18:03 -0700 | [diff] [blame] | 84 | public static final boolean ATLEAST_OREO_MR1 = |
| 85 | Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1; |
| 86 | |
| 87 | public static final boolean ATLEAST_OREO = |
| 88 | Build.VERSION.SDK_INT >= Build.VERSION_CODES.O; |
Sunny Goyal | dcc0ba2 | 2016-11-02 11:22:39 -0700 | [diff] [blame] | 89 | |
Sunny Goyal | f5e3744 | 2016-11-02 10:31:24 -0700 | [diff] [blame] | 90 | public static final boolean ATLEAST_NOUGAT_MR1 = |
Hyunyoung Song | e24cb63 | 2017-09-11 11:18:03 -0700 | [diff] [blame] | 91 | Build.VERSION.SDK_INT >= Build.VERSION_CODES.N_MR1; |
Sunny Goyal | 9994b2b | 2016-06-23 14:17:24 -0700 | [diff] [blame] | 92 | |
Sunny Goyal | f5e3744 | 2016-11-02 10:31:24 -0700 | [diff] [blame] | 93 | public static final boolean ATLEAST_NOUGAT = |
Hyunyoung Song | e24cb63 | 2017-09-11 11:18:03 -0700 | [diff] [blame] | 94 | Build.VERSION.SDK_INT >= Build.VERSION_CODES.N; |
Sunny Goyal | e2ec8a3 | 2016-09-01 11:00:49 -0700 | [diff] [blame] | 95 | |
Winson | be9798b | 2016-07-20 12:55:49 -0700 | [diff] [blame] | 96 | public static final boolean ATLEAST_MARSHMALLOW = |
| 97 | Build.VERSION.SDK_INT >= Build.VERSION_CODES.M; |
Sunny Goyal | 9fc953b | 2015-08-17 12:24:25 -0700 | [diff] [blame] | 98 | |
| 99 | public static final boolean ATLEAST_LOLLIPOP_MR1 = |
| 100 | Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1; |
| 101 | |
Sunny Goyal | 49f19f0 | 2017-01-05 14:36:02 -0800 | [diff] [blame] | 102 | /** |
| 103 | * Indicates if the device has a debug build. Should only be used to store additional info or |
| 104 | * add extra logging and not for changing the app behavior. |
| 105 | */ |
| 106 | public static final boolean IS_DEBUG_DEVICE = Build.TYPE.toLowerCase().contains("debug"); |
| 107 | |
Sunny Goyal | 6f86609 | 2016-03-17 17:04:15 -0700 | [diff] [blame] | 108 | // An intent extra to indicate the horizontal scroll of the wallpaper. |
| 109 | public static final String EXTRA_WALLPAPER_OFFSET = "com.android.launcher3.WALLPAPER_OFFSET"; |
| 110 | |
Tony | 629a67c | 2017-06-02 15:43:26 -0700 | [diff] [blame] | 111 | public static final int COLOR_EXTRACTION_JOB_ID = 1; |
Sunny Goyal | 8231596 | 2017-06-08 14:27:49 -0700 | [diff] [blame] | 112 | public static final int WALLPAPER_COMPAT_JOB_ID = 2; |
Tony | 629a67c | 2017-06-02 15:43:26 -0700 | [diff] [blame] | 113 | |
Sunny Goyal | 8ac727b | 2015-09-23 15:38:09 -0700 | [diff] [blame] | 114 | // These values are same as that in {@link AsyncTask}. |
| 115 | private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors(); |
| 116 | private static final int CORE_POOL_SIZE = CPU_COUNT + 1; |
| 117 | private static final int MAXIMUM_POOL_SIZE = CPU_COUNT * 2 + 1; |
| 118 | private static final int KEEP_ALIVE = 1; |
| 119 | /** |
| 120 | * An {@link Executor} to be used with async task with no limit on the queue size. |
| 121 | */ |
| 122 | public static final Executor THREAD_POOL_EXECUTOR = new ThreadPoolExecutor( |
| 123 | CORE_POOL_SIZE, MAXIMUM_POOL_SIZE, KEEP_ALIVE, |
| 124 | TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>()); |
| 125 | |
Rahul Chaturvedi | 7fc77ca | 2015-05-19 18:02:16 -0700 | [diff] [blame] | 126 | public static final String ALLOW_ROTATION_PREFERENCE_KEY = "pref_allowRotation"; |
| 127 | |
Sunny Goyal | 4bbf419 | 2014-11-11 12:23:59 -0800 | [diff] [blame] | 128 | public static boolean isPropertyEnabled(String propertyName) { |
Michael Jurka | 7ad868b | 2013-12-12 15:04:25 +0100 | [diff] [blame] | 129 | return Log.isLoggable(propertyName, Log.VERBOSE); |
| 130 | } |
| 131 | |
Sunny Goyal | 21bf531 | 2015-08-21 11:08:24 -0700 | [diff] [blame] | 132 | public static boolean isAllowRotationPrefEnabled(Context context) { |
Sunny Goyal | f48e592 | 2016-05-12 15:36:20 -0700 | [diff] [blame] | 133 | return getPrefs(context).getBoolean(ALLOW_ROTATION_PREFERENCE_KEY, |
| 134 | getAllowRotationDefaultValue(context)); |
| 135 | } |
| 136 | |
| 137 | public static boolean getAllowRotationDefaultValue(Context context) { |
Sunny Goyal | f5e3744 | 2016-11-02 10:31:24 -0700 | [diff] [blame] | 138 | if (ATLEAST_NOUGAT) { |
Sunny Goyal | 8f3819b | 2016-02-23 14:49:22 -0800 | [diff] [blame] | 139 | // If the device was scaled, used the original dimensions to determine if rotation |
| 140 | // is allowed of not. |
Sunny Goyal | e2ec8a3 | 2016-09-01 11:00:49 -0700 | [diff] [blame] | 141 | Resources res = context.getResources(); |
| 142 | int originalSmallestWidth = res.getConfiguration().smallestScreenWidthDp |
| 143 | * res.getDisplayMetrics().densityDpi / DisplayMetrics.DENSITY_DEVICE_STABLE; |
| 144 | return originalSmallestWidth >= 600; |
Sunny Goyal | 8f3819b | 2016-02-23 14:49:22 -0800 | [diff] [blame] | 145 | } |
Sunny Goyal | f48e592 | 2016-05-12 15:36:20 -0700 | [diff] [blame] | 146 | return false; |
Michael Jurka | 7ad868b | 2013-12-12 15:04:25 +0100 | [diff] [blame] | 147 | } |
| 148 | |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 149 | /** |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 150 | * Given a coordinate relative to the descendant, find the coordinate in a parent view's |
| 151 | * coordinates. |
| 152 | * |
| 153 | * @param descendant The descendant to which the passed coordinate is relative. |
Sunny Goyal | e8b5d20 | 2016-06-13 16:36:59 -0700 | [diff] [blame] | 154 | * @param ancestor The root view to make the coordinates relative to. |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 155 | * @param coord The coordinate that we want mapped. |
| 156 | * @param includeRootScroll Whether or not to account for the scroll of the descendant: |
| 157 | * sometimes this is relevant as in a child's coordinates within the descendant. |
| 158 | * @return The factor by which this descendant is scaled relative to this DragLayer. Caution |
| 159 | * this scale factor is assumed to be equal in X and Y, and so if at any point this |
| 160 | * assumption fails, we will need to return a pair of scale factors. |
| 161 | */ |
Sunny Goyal | e8b5d20 | 2016-06-13 16:36:59 -0700 | [diff] [blame] | 162 | public static float getDescendantCoordRelativeToAncestor( |
| 163 | View descendant, View ancestor, int[] coord, boolean includeRootScroll) { |
Sunny Goyal | 5e0e94f | 2016-10-28 10:01:00 -0700 | [diff] [blame] | 164 | sPoint[0] = coord[0]; |
| 165 | sPoint[1] = coord[1]; |
| 166 | |
Sunny Goyal | 8cf47a5 | 2016-06-15 10:11:30 -0700 | [diff] [blame] | 167 | float scale = 1.0f; |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 168 | View v = descendant; |
Sunny Goyal | e8b5d20 | 2016-06-13 16:36:59 -0700 | [diff] [blame] | 169 | while(v != ancestor && v != null) { |
Sunny Goyal | 8cf47a5 | 2016-06-15 10:11:30 -0700 | [diff] [blame] | 170 | // For TextViews, scroll has a meaning which relates to the text position |
| 171 | // which is very strange... ignore the scroll. |
| 172 | if (v != descendant || includeRootScroll) { |
Sunny Goyal | 5e0e94f | 2016-10-28 10:01:00 -0700 | [diff] [blame] | 173 | sPoint[0] -= v.getScrollX(); |
| 174 | sPoint[1] -= v.getScrollY(); |
Sunny Goyal | 8cf47a5 | 2016-06-15 10:11:30 -0700 | [diff] [blame] | 175 | } |
| 176 | |
Sunny Goyal | 5e0e94f | 2016-10-28 10:01:00 -0700 | [diff] [blame] | 177 | v.getMatrix().mapPoints(sPoint); |
| 178 | sPoint[0] += v.getLeft(); |
| 179 | sPoint[1] += v.getTop(); |
Sunny Goyal | 8cf47a5 | 2016-06-15 10:11:30 -0700 | [diff] [blame] | 180 | scale *= v.getScaleX(); |
| 181 | |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 182 | v = (View) v.getParent(); |
| 183 | } |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 184 | |
Sunny Goyal | 5e0e94f | 2016-10-28 10:01:00 -0700 | [diff] [blame] | 185 | coord[0] = Math.round(sPoint[0]); |
| 186 | coord[1] = Math.round(sPoint[1]); |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 187 | return scale; |
| 188 | } |
| 189 | |
| 190 | /** |
Sunny Goyal | e8b5d20 | 2016-06-13 16:36:59 -0700 | [diff] [blame] | 191 | * Inverse of {@link #getDescendantCoordRelativeToAncestor(View, View, int[], boolean)}. |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 192 | */ |
Sunny Goyal | 5e0e94f | 2016-10-28 10:01:00 -0700 | [diff] [blame] | 193 | public static void mapCoordInSelfToDescendant(View descendant, View root, int[] coord) { |
| 194 | sMatrix.reset(); |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 195 | View v = descendant; |
| 196 | while(v != root) { |
Sunny Goyal | 5e0e94f | 2016-10-28 10:01:00 -0700 | [diff] [blame] | 197 | sMatrix.postTranslate(-v.getScrollX(), -v.getScrollY()); |
| 198 | sMatrix.postConcat(v.getMatrix()); |
| 199 | sMatrix.postTranslate(v.getLeft(), v.getTop()); |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 200 | v = (View) v.getParent(); |
| 201 | } |
Sunny Goyal | 5e0e94f | 2016-10-28 10:01:00 -0700 | [diff] [blame] | 202 | sMatrix.postTranslate(-v.getScrollX(), -v.getScrollY()); |
| 203 | sMatrix.invert(sInverseMatrix); |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 204 | |
Sunny Goyal | 5e0e94f | 2016-10-28 10:01:00 -0700 | [diff] [blame] | 205 | sPoint[0] = coord[0]; |
| 206 | sPoint[1] = coord[1]; |
| 207 | sInverseMatrix.mapPoints(sPoint); |
| 208 | coord[0] = Math.round(sPoint[0]); |
| 209 | coord[1] = Math.round(sPoint[1]); |
Winson Chung | c763c4e | 2013-07-19 13:49:06 -0700 | [diff] [blame] | 210 | } |
| 211 | |
Jason Monk | 02dd7ae | 2014-04-15 15:23:31 -0400 | [diff] [blame] | 212 | /** |
| 213 | * Utility method to determine whether the given point, in local coordinates, |
| 214 | * is inside the view, where the area of the view is expanded by the slop factor. |
| 215 | * This method is called while processing touch-move events to determine if the event |
| 216 | * is still within the view. |
| 217 | */ |
| 218 | public static boolean pointInView(View v, float localX, float localY, float slop) { |
| 219 | return localX >= -slop && localY >= -slop && localX < (v.getWidth() + slop) && |
| 220 | localY < (v.getHeight() + slop); |
| 221 | } |
| 222 | |
Sunny Goyal | a52ecb0 | 2016-12-16 15:04:51 -0800 | [diff] [blame] | 223 | public static int[] getCenterDeltaInScreenSpace(View v0, View v1) { |
Adam Cohen | 63f1ec0 | 2014-08-12 09:23:13 -0700 | [diff] [blame] | 224 | v0.getLocationInWindow(sLoc0); |
| 225 | v1.getLocationInWindow(sLoc1); |
| 226 | |
| 227 | sLoc0[0] += (v0.getMeasuredWidth() * v0.getScaleX()) / 2; |
| 228 | sLoc0[1] += (v0.getMeasuredHeight() * v0.getScaleY()) / 2; |
| 229 | sLoc1[0] += (v1.getMeasuredWidth() * v1.getScaleX()) / 2; |
| 230 | sLoc1[1] += (v1.getMeasuredHeight() * v1.getScaleY()) / 2; |
Sunny Goyal | a52ecb0 | 2016-12-16 15:04:51 -0800 | [diff] [blame] | 231 | return new int[] {sLoc1[0] - sLoc0[0], sLoc1[1] - sLoc0[1]}; |
Adam Cohen | 63f1ec0 | 2014-08-12 09:23:13 -0700 | [diff] [blame] | 232 | } |
| 233 | |
Jon Miranda | 6f6a06a | 2016-12-15 11:24:18 -0800 | [diff] [blame] | 234 | public static void scaleRectAboutCenter(Rect r, float scale) { |
| 235 | if (scale != 1.0f) { |
| 236 | int cx = r.centerX(); |
| 237 | int cy = r.centerY(); |
| 238 | r.offset(-cx, -cy); |
| 239 | |
| 240 | r.left = (int) (r.left * scale + 0.5f); |
| 241 | r.top = (int) (r.top * scale + 0.5f); |
| 242 | r.right = (int) (r.right * scale + 0.5f); |
| 243 | r.bottom = (int) (r.bottom * scale + 0.5f); |
| 244 | |
| 245 | r.offset(cx, cy); |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | public static float shrinkRect(Rect r, float scaleX, float scaleY) { |
Jon Miranda | e96798e | 2016-12-07 12:10:44 -0800 | [diff] [blame] | 250 | float scale = Math.min(Math.min(scaleX, scaleY), 1.0f); |
| 251 | if (scale < 1.0f) { |
| 252 | int deltaX = (int) (r.width() * (scaleX - scale) * 0.5f); |
| 253 | r.left += deltaX; |
| 254 | r.right -= deltaX; |
Sunny Goyal | 106bf64 | 2015-07-16 12:18:06 -0700 | [diff] [blame] | 255 | |
Jon Miranda | e96798e | 2016-12-07 12:10:44 -0800 | [diff] [blame] | 256 | int deltaY = (int) (r.height() * (scaleY - scale) * 0.5f); |
| 257 | r.top += deltaY; |
| 258 | r.bottom -= deltaY; |
Sunny Goyal | 106bf64 | 2015-07-16 12:18:06 -0700 | [diff] [blame] | 259 | } |
Jon Miranda | e96798e | 2016-12-07 12:10:44 -0800 | [diff] [blame] | 260 | return scale; |
Winson Chung | 3a6e7f3 | 2013-10-09 15:50:52 -0700 | [diff] [blame] | 261 | } |
| 262 | |
Sunny Goyal | 0e947fb | 2017-05-19 12:21:50 -0700 | [diff] [blame] | 263 | public static boolean isSystemApp(Context context, Intent intent) { |
Sunny Goyal | c5c60ad | 2014-07-14 12:02:01 -0700 | [diff] [blame] | 264 | PackageManager pm = context.getPackageManager(); |
| 265 | ComponentName cn = intent.getComponent(); |
| 266 | String packageName = null; |
| 267 | if (cn == null) { |
| 268 | ResolveInfo info = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY); |
| 269 | if ((info != null) && (info.activityInfo != null)) { |
| 270 | packageName = info.activityInfo.packageName; |
| 271 | } |
| 272 | } else { |
| 273 | packageName = cn.getPackageName(); |
| 274 | } |
| 275 | if (packageName != null) { |
| 276 | try { |
| 277 | PackageInfo info = pm.getPackageInfo(packageName, 0); |
| 278 | return (info != null) && (info.applicationInfo != null) && |
| 279 | ((info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0); |
| 280 | } catch (NameNotFoundException e) { |
| 281 | return false; |
| 282 | } |
| 283 | } else { |
| 284 | return false; |
| 285 | } |
| 286 | } |
Sunny Goyal | 95abbb3 | 2014-08-04 10:53:22 -0700 | [diff] [blame] | 287 | |
| 288 | /** |
| 289 | * This picks a dominant color, looking for high-saturation, high-value, repeated hues. |
| 290 | * @param bitmap The bitmap to scan |
| 291 | * @param samples The approximate max number of samples to use. |
| 292 | */ |
Tony Wickham | 9a8d11f | 2017-01-11 09:53:12 -0800 | [diff] [blame] | 293 | public static int findDominantColorByHue(Bitmap bitmap, int samples) { |
Sunny Goyal | 95abbb3 | 2014-08-04 10:53:22 -0700 | [diff] [blame] | 294 | final int height = bitmap.getHeight(); |
| 295 | final int width = bitmap.getWidth(); |
| 296 | int sampleStride = (int) Math.sqrt((height * width) / samples); |
| 297 | if (sampleStride < 1) { |
| 298 | sampleStride = 1; |
| 299 | } |
| 300 | |
| 301 | // This is an out-param, for getting the hsv values for an rgb |
| 302 | float[] hsv = new float[3]; |
| 303 | |
| 304 | // First get the best hue, by creating a histogram over 360 hue buckets, |
| 305 | // where each pixel contributes a score weighted by saturation, value, and alpha. |
| 306 | float[] hueScoreHistogram = new float[360]; |
| 307 | float highScore = -1; |
| 308 | int bestHue = -1; |
| 309 | |
Sunny Goyal | 9b8e36b | 2017-09-28 19:13:53 -0700 | [diff] [blame] | 310 | int[] pixels = new int[samples]; |
| 311 | int pixelCount = 0; |
| 312 | |
Sunny Goyal | 95abbb3 | 2014-08-04 10:53:22 -0700 | [diff] [blame] | 313 | for (int y = 0; y < height; y += sampleStride) { |
| 314 | for (int x = 0; x < width; x += sampleStride) { |
| 315 | int argb = bitmap.getPixel(x, y); |
| 316 | int alpha = 0xFF & (argb >> 24); |
| 317 | if (alpha < 0x80) { |
| 318 | // Drop mostly-transparent pixels. |
| 319 | continue; |
| 320 | } |
| 321 | // Remove the alpha channel. |
| 322 | int rgb = argb | 0xFF000000; |
| 323 | Color.colorToHSV(rgb, hsv); |
| 324 | // Bucket colors by the 360 integer hues. |
| 325 | int hue = (int) hsv[0]; |
| 326 | if (hue < 0 || hue >= hueScoreHistogram.length) { |
| 327 | // Defensively avoid array bounds violations. |
| 328 | continue; |
| 329 | } |
Sunny Goyal | 9b8e36b | 2017-09-28 19:13:53 -0700 | [diff] [blame] | 330 | if (pixelCount < samples) { |
| 331 | pixels[pixelCount++] = rgb; |
| 332 | } |
Sunny Goyal | 95abbb3 | 2014-08-04 10:53:22 -0700 | [diff] [blame] | 333 | float score = hsv[1] * hsv[2]; |
| 334 | hueScoreHistogram[hue] += score; |
| 335 | if (hueScoreHistogram[hue] > highScore) { |
| 336 | highScore = hueScoreHistogram[hue]; |
| 337 | bestHue = hue; |
| 338 | } |
| 339 | } |
| 340 | } |
| 341 | |
Sunny Goyal | 9b8e36b | 2017-09-28 19:13:53 -0700 | [diff] [blame] | 342 | SparseArray<Float> rgbScores = new SparseArray<>(); |
Sunny Goyal | 95abbb3 | 2014-08-04 10:53:22 -0700 | [diff] [blame] | 343 | int bestColor = 0xff000000; |
| 344 | highScore = -1; |
| 345 | // Go back over the RGB colors that match the winning hue, |
| 346 | // creating a histogram of weighted s*v scores, for up to 100*100 [s,v] buckets. |
| 347 | // The highest-scoring RGB color wins. |
Sunny Goyal | 9b8e36b | 2017-09-28 19:13:53 -0700 | [diff] [blame] | 348 | for (int i = 0; i < pixelCount; i++) { |
| 349 | int rgb = pixels[i]; |
| 350 | Color.colorToHSV(rgb, hsv); |
| 351 | int hue = (int) hsv[0]; |
| 352 | if (hue == bestHue) { |
| 353 | float s = hsv[1]; |
| 354 | float v = hsv[2]; |
| 355 | int bucket = (int) (s * 100) + (int) (v * 10000); |
| 356 | // Score by cumulative saturation * value. |
| 357 | float score = s * v; |
| 358 | Float oldTotal = rgbScores.get(bucket); |
| 359 | float newTotal = oldTotal == null ? score : oldTotal + score; |
| 360 | rgbScores.put(bucket, newTotal); |
| 361 | if (newTotal > highScore) { |
| 362 | highScore = newTotal; |
| 363 | // All the colors in the winning bucket are very similar. Last in wins. |
| 364 | bestColor = rgb; |
Sunny Goyal | 95abbb3 | 2014-08-04 10:53:22 -0700 | [diff] [blame] | 365 | } |
| 366 | } |
| 367 | } |
| 368 | return bestColor; |
| 369 | } |
Sunny Goyal | 0fe505b | 2014-08-06 09:55:36 -0700 | [diff] [blame] | 370 | |
| 371 | /* |
| 372 | * Finds a system apk which had a broadcast receiver listening to a particular action. |
| 373 | * @param action intent action used to find the apk |
| 374 | * @return a pair of apk package name and the resources. |
| 375 | */ |
| 376 | static Pair<String, Resources> findSystemApk(String action, PackageManager pm) { |
| 377 | final Intent intent = new Intent(action); |
| 378 | for (ResolveInfo info : pm.queryBroadcastReceivers(intent, 0)) { |
| 379 | if (info.activityInfo != null && |
| 380 | (info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { |
| 381 | final String packageName = info.activityInfo.packageName; |
| 382 | try { |
| 383 | final Resources res = pm.getResourcesForApplication(packageName); |
| 384 | return Pair.create(packageName, res); |
| 385 | } catch (NameNotFoundException e) { |
| 386 | Log.w(TAG, "Failed to find resources for " + packageName); |
| 387 | } |
| 388 | } |
| 389 | } |
| 390 | return null; |
| 391 | } |
Sunny Goyal | fafca52 | 2014-11-03 11:30:01 -0800 | [diff] [blame] | 392 | |
Sunny Goyal | 594d76d | 2014-11-06 10:12:54 -0800 | [diff] [blame] | 393 | /** |
Sunny Goyal | 5b0e669 | 2015-03-19 14:31:19 -0700 | [diff] [blame] | 394 | * Compresses the bitmap to a byte array for serialization. |
| 395 | */ |
| 396 | public static byte[] flattenBitmap(Bitmap bitmap) { |
| 397 | // Try go guesstimate how much space the icon will take when serialized |
| 398 | // to avoid unnecessary allocations/copies during the write. |
| 399 | int size = bitmap.getWidth() * bitmap.getHeight() * 4; |
| 400 | ByteArrayOutputStream out = new ByteArrayOutputStream(size); |
| 401 | try { |
| 402 | bitmap.compress(Bitmap.CompressFormat.PNG, 100, out); |
| 403 | out.flush(); |
| 404 | out.close(); |
| 405 | return out.toByteArray(); |
| 406 | } catch (IOException e) { |
| 407 | Log.w(TAG, "Could not write bitmap"); |
| 408 | return null; |
| 409 | } |
| 410 | } |
| 411 | |
Sunny Goyal | f7a29e8 | 2015-04-24 15:20:43 -0700 | [diff] [blame] | 412 | /** |
Winson Chung | 82b016c | 2015-05-08 17:00:10 -0700 | [diff] [blame] | 413 | * Trims the string, removing all whitespace at the beginning and end of the string. |
| 414 | * Non-breaking whitespaces are also removed. |
| 415 | */ |
| 416 | public static String trim(CharSequence s) { |
Winson Chung | afa77e9 | 2015-05-15 12:04:03 -0700 | [diff] [blame] | 417 | if (s == null) { |
| 418 | return null; |
| 419 | } |
| 420 | |
Winson Chung | 82b016c | 2015-05-08 17:00:10 -0700 | [diff] [blame] | 421 | // Just strip any sequence of whitespace or java space characters from the beginning and end |
| 422 | Matcher m = sTrimPattern.matcher(s); |
| 423 | return m.replaceAll("$1"); |
| 424 | } |
Sunny Goyal | 7066003 | 2015-05-14 00:07:08 -0700 | [diff] [blame] | 425 | |
Winson Chung | 2c6e5cc | 2015-06-01 14:38:24 -0700 | [diff] [blame] | 426 | /** |
| 427 | * Calculates the height of a given string at a specific text size. |
| 428 | */ |
Sunny Goyal | baec6ff | 2016-09-14 11:26:21 -0700 | [diff] [blame] | 429 | public static int calculateTextHeight(float textSizePx) { |
Winson Chung | 2c6e5cc | 2015-06-01 14:38:24 -0700 | [diff] [blame] | 430 | Paint p = new Paint(); |
| 431 | p.setTextSize(textSizePx); |
| 432 | Paint.FontMetrics fm = p.getFontMetrics(); |
Sunny Goyal | baec6ff | 2016-09-14 11:26:21 -0700 | [diff] [blame] | 433 | return (int) Math.ceil(fm.bottom - fm.top); |
Winson Chung | 2c6e5cc | 2015-06-01 14:38:24 -0700 | [diff] [blame] | 434 | } |
| 435 | |
Winson Chung | b177744 | 2015-06-16 13:35:04 -0700 | [diff] [blame] | 436 | /** |
| 437 | * Convenience println with multiple args. |
| 438 | */ |
| 439 | public static void println(String key, Object... args) { |
| 440 | StringBuilder b = new StringBuilder(); |
| 441 | b.append(key); |
| 442 | b.append(": "); |
| 443 | boolean isFirstArgument = true; |
| 444 | for (Object arg : args) { |
| 445 | if (isFirstArgument) { |
| 446 | isFirstArgument = false; |
| 447 | } else { |
| 448 | b.append(", "); |
| 449 | } |
| 450 | b.append(arg); |
| 451 | } |
| 452 | System.out.println(b.toString()); |
| 453 | } |
| 454 | |
Sunny Goyal | 7066003 | 2015-05-14 00:07:08 -0700 | [diff] [blame] | 455 | public static boolean isRtl(Resources res) { |
Sunny Goyal | a52ecb0 | 2016-12-16 15:04:51 -0800 | [diff] [blame] | 456 | return res.getConfiguration().getLayoutDirection() == View.LAYOUT_DIRECTION_RTL; |
Sunny Goyal | 7066003 | 2015-05-14 00:07:08 -0700 | [diff] [blame] | 457 | } |
Hyunyoung Song | 2bd3d7d | 2015-05-21 13:04:53 -0700 | [diff] [blame] | 458 | |
Sunny Goyal | 5c97f51 | 2015-05-19 16:03:28 -0700 | [diff] [blame] | 459 | /** |
| 460 | * Returns true if the intent is a valid launch intent for a launcher activity of an app. |
| 461 | * This is used to identify shortcuts which are different from the ones exposed by the |
| 462 | * applications' manifest file. |
| 463 | * |
| 464 | * @param launchIntent The intent that will be launched when the shortcut is clicked. |
| 465 | */ |
| 466 | public static boolean isLauncherAppTarget(Intent launchIntent) { |
Sunny Goyal | 4e5cc64 | 2015-06-25 16:37:44 -0700 | [diff] [blame] | 467 | if (launchIntent != null |
Sunny Goyal | 5c97f51 | 2015-05-19 16:03:28 -0700 | [diff] [blame] | 468 | && Intent.ACTION_MAIN.equals(launchIntent.getAction()) |
| 469 | && launchIntent.getComponent() != null |
| 470 | && launchIntent.getCategories() != null |
| 471 | && launchIntent.getCategories().size() == 1 |
| 472 | && launchIntent.hasCategory(Intent.CATEGORY_LAUNCHER) |
Sunny Goyal | 4e5cc64 | 2015-06-25 16:37:44 -0700 | [diff] [blame] | 473 | && TextUtils.isEmpty(launchIntent.getDataString())) { |
| 474 | // An app target can either have no extra or have ItemInfo.EXTRA_PROFILE. |
| 475 | Bundle extras = launchIntent.getExtras(); |
Sunny Goyal | 24bb66a | 2017-03-21 15:12:01 -0700 | [diff] [blame] | 476 | return extras == null || extras.keySet().isEmpty(); |
| 477 | } |
Sunny Goyal | 4e5cc64 | 2015-06-25 16:37:44 -0700 | [diff] [blame] | 478 | return false; |
Sunny Goyal | 5c97f51 | 2015-05-19 16:03:28 -0700 | [diff] [blame] | 479 | } |
Adam Cohen | 2e6da15 | 2015-05-06 11:42:25 -0700 | [diff] [blame] | 480 | |
| 481 | public static float dpiFromPx(int size, DisplayMetrics metrics){ |
| 482 | float densityRatio = (float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT; |
| 483 | return (size / densityRatio); |
| 484 | } |
| 485 | public static int pxFromDp(float size, DisplayMetrics metrics) { |
| 486 | return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, |
| 487 | size, metrics)); |
| 488 | } |
| 489 | public static int pxFromSp(float size, DisplayMetrics metrics) { |
| 490 | return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, |
| 491 | size, metrics)); |
| 492 | } |
Sunny Goyal | b1622cc | 2015-06-10 16:00:42 -0700 | [diff] [blame] | 493 | |
| 494 | public static String createDbSelectionQuery(String columnName, Iterable<?> values) { |
| 495 | return String.format(Locale.ENGLISH, "%s IN (%s)", columnName, TextUtils.join(", ", values)); |
| 496 | } |
Sunny Goyal | 25aba0a | 2015-07-16 15:07:47 -0700 | [diff] [blame] | 497 | |
Sunny Goyal | 25aba0a | 2015-07-16 15:07:47 -0700 | [diff] [blame] | 498 | public static boolean isBootCompleted() { |
Sunny Goyal | dfc8b66 | 2016-08-30 12:05:48 -0700 | [diff] [blame] | 499 | return "1".equals(getSystemProperty("sys.boot_completed", "1")); |
| 500 | } |
| 501 | |
| 502 | public static String getSystemProperty(String property, String defaultValue) { |
Sunny Goyal | 25aba0a | 2015-07-16 15:07:47 -0700 | [diff] [blame] | 503 | try { |
| 504 | Class clazz = Class.forName("android.os.SystemProperties"); |
| 505 | Method getter = clazz.getDeclaredMethod("get", String.class); |
Sunny Goyal | dfc8b66 | 2016-08-30 12:05:48 -0700 | [diff] [blame] | 506 | String value = (String) getter.invoke(null, property); |
| 507 | if (!TextUtils.isEmpty(value)) { |
| 508 | return value; |
| 509 | } |
Sunny Goyal | 25aba0a | 2015-07-16 15:07:47 -0700 | [diff] [blame] | 510 | } catch (Exception e) { |
| 511 | Log.d(TAG, "Unable to read system properties"); |
Sunny Goyal | 25aba0a | 2015-07-16 15:07:47 -0700 | [diff] [blame] | 512 | } |
Sunny Goyal | dfc8b66 | 2016-08-30 12:05:48 -0700 | [diff] [blame] | 513 | return defaultValue; |
Sunny Goyal | 25aba0a | 2015-07-16 15:07:47 -0700 | [diff] [blame] | 514 | } |
Tony Wickham | 29d853c | 2015-09-08 10:35:56 -0700 | [diff] [blame] | 515 | |
| 516 | /** |
| 517 | * Ensures that a value is within given bounds. Specifically: |
| 518 | * If value is less than lowerBound, return lowerBound; else if value is greater than upperBound, |
| 519 | * return upperBound; else return value unchanged. |
| 520 | */ |
Tony Wickham | f549dab | 2016-05-16 09:54:06 -0700 | [diff] [blame] | 521 | public static int boundToRange(int value, int lowerBound, int upperBound) { |
| 522 | return Math.max(lowerBound, Math.min(value, upperBound)); |
| 523 | } |
| 524 | |
| 525 | /** |
| 526 | * @see #boundToRange(int, int, int). |
| 527 | */ |
| 528 | public static float boundToRange(float value, float lowerBound, float upperBound) { |
Tony Wickham | 29d853c | 2015-09-08 10:35:56 -0700 | [diff] [blame] | 529 | return Math.max(lowerBound, Math.min(value, upperBound)); |
| 530 | } |
Sunny Goyal | 9d43808 | 2015-09-25 11:50:16 -0700 | [diff] [blame] | 531 | |
Sunny Goyal | e78e3d7 | 2015-09-24 11:23:31 -0700 | [diff] [blame] | 532 | /** |
| 533 | * Wraps a message with a TTS span, so that a different message is spoken than |
| 534 | * what is getting displayed. |
| 535 | * @param msg original message |
| 536 | * @param ttsMsg message to be spoken |
| 537 | */ |
Sunny Goyal | e78e3d7 | 2015-09-24 11:23:31 -0700 | [diff] [blame] | 538 | public static CharSequence wrapForTts(CharSequence msg, String ttsMsg) { |
Sunny Goyal | a52ecb0 | 2016-12-16 15:04:51 -0800 | [diff] [blame] | 539 | SpannableString spanned = new SpannableString(msg); |
| 540 | spanned.setSpan(new TtsSpan.TextBuilder(ttsMsg).build(), |
| 541 | 0, spanned.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE); |
| 542 | return spanned; |
Sunny Goyal | e78e3d7 | 2015-09-24 11:23:31 -0700 | [diff] [blame] | 543 | } |
Winson | 12fb9fc | 2015-10-01 15:34:08 -0700 | [diff] [blame] | 544 | |
| 545 | /** |
| 546 | * Replacement for Long.compare() which was added in API level 19. |
| 547 | */ |
| 548 | public static int longCompare(long lhs, long rhs) { |
| 549 | return lhs < rhs ? -1 : (lhs == rhs ? 0 : 1); |
| 550 | } |
Sunny Goyal | f725824 | 2015-10-19 16:59:07 -0700 | [diff] [blame] | 551 | |
| 552 | public static SharedPreferences getPrefs(Context context) { |
| 553 | return context.getSharedPreferences( |
| 554 | LauncherFiles.SHARED_PREFERENCES_KEY, Context.MODE_PRIVATE); |
| 555 | } |
Tony Wickham | 112ac95 | 2015-11-12 12:31:50 -0800 | [diff] [blame] | 556 | |
Sunny Goyal | 9d887a2 | 2017-06-08 14:00:43 -0700 | [diff] [blame] | 557 | public static SharedPreferences getDevicePrefs(Context context) { |
| 558 | return context.getSharedPreferences( |
| 559 | LauncherFiles.DEVICE_PREFERENCES_KEY, Context.MODE_PRIVATE); |
| 560 | } |
| 561 | |
Tony Wickham | 112ac95 | 2015-11-12 12:31:50 -0800 | [diff] [blame] | 562 | public static boolean isPowerSaverOn(Context context) { |
| 563 | PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); |
Sunny Goyal | a52ecb0 | 2016-12-16 15:04:51 -0800 | [diff] [blame] | 564 | return powerManager.isPowerSaveMode(); |
Tony Wickham | 112ac95 | 2015-11-12 12:31:50 -0800 | [diff] [blame] | 565 | } |
Sunny Goyal | e1483fb | 2016-01-08 12:16:15 -0800 | [diff] [blame] | 566 | |
Hyunyoung Song | 0de0117 | 2016-10-05 16:27:48 -0700 | [diff] [blame] | 567 | public static boolean isWallpaperAllowed(Context context) { |
Sunny Goyal | f5e3744 | 2016-11-02 10:31:24 -0700 | [diff] [blame] | 568 | if (ATLEAST_NOUGAT) { |
Sunny Goyal | 1ed6c4a | 2016-04-21 15:16:11 -0700 | [diff] [blame] | 569 | try { |
| 570 | WallpaperManager wm = context.getSystemService(WallpaperManager.class); |
Kenny Guy | 367da9f | 2016-05-25 19:22:14 +0100 | [diff] [blame] | 571 | return (Boolean) wm.getClass().getDeclaredMethod("isSetWallpaperAllowed") |
Sunny Goyal | 1ed6c4a | 2016-04-21 15:16:11 -0700 | [diff] [blame] | 572 | .invoke(wm); |
| 573 | } catch (Exception e) { } |
| 574 | } |
| 575 | return true; |
| 576 | } |
| 577 | |
Sunny Goyal | 713edfc | 2016-05-06 09:58:34 -0700 | [diff] [blame] | 578 | public static void closeSilently(Closeable c) { |
| 579 | if (c != null) { |
| 580 | try { |
| 581 | c.close(); |
| 582 | } catch (IOException e) { |
Sunny Goyal | 3d706ad | 2017-03-06 16:56:39 -0800 | [diff] [blame] | 583 | if (FeatureFlags.IS_DOGFOOD_BUILD) { |
Sunny Goyal | 713edfc | 2016-05-06 09:58:34 -0700 | [diff] [blame] | 584 | Log.d(TAG, "Error closing", e); |
| 585 | } |
| 586 | } |
| 587 | } |
| 588 | } |
| 589 | |
Sunny Goyal | e1483fb | 2016-01-08 12:16:15 -0800 | [diff] [blame] | 590 | /** |
Sunny Goyal | 3f73219 | 2016-05-13 13:48:44 -0700 | [diff] [blame] | 591 | * Returns true if {@param original} contains all entries defined in {@param updates} and |
| 592 | * have the same value. |
| 593 | * The comparison uses {@link Object#equals(Object)} to compare the values. |
| 594 | */ |
| 595 | public static boolean containsAll(Bundle original, Bundle updates) { |
| 596 | for (String key : updates.keySet()) { |
| 597 | Object value1 = updates.get(key); |
| 598 | Object value2 = original.get(key); |
| 599 | if (value1 == null) { |
| 600 | if (value2 != null) { |
| 601 | return false; |
| 602 | } |
| 603 | } else if (!value1.equals(value2)) { |
| 604 | return false; |
| 605 | } |
| 606 | } |
| 607 | return true; |
| 608 | } |
| 609 | |
Tony Wickham | 1bce7fd | 2016-04-28 17:39:03 -0700 | [diff] [blame] | 610 | /** Returns whether the collection is null or empty. */ |
| 611 | public static boolean isEmpty(Collection c) { |
| 612 | return c == null || c.isEmpty(); |
| 613 | } |
| 614 | |
Sunny Goyal | 712ee53 | 2016-11-04 10:19:58 -0700 | [diff] [blame] | 615 | public static boolean isBinderSizeError(Exception e) { |
| 616 | return e.getCause() instanceof TransactionTooLargeException |
| 617 | || e.getCause() instanceof DeadObjectException; |
| 618 | } |
Sunny Goyal | ab121c1 | 2016-12-02 19:29:43 +0530 | [diff] [blame] | 619 | |
| 620 | public static <T> T getOverrideObject(Class<T> clazz, Context context, int resId) { |
| 621 | String className = context.getString(resId); |
| 622 | if (!TextUtils.isEmpty(className)) { |
| 623 | try { |
| 624 | Class<?> cls = Class.forName(className); |
| 625 | return (T) cls.getDeclaredConstructor(Context.class).newInstance(context); |
| 626 | } catch (ClassNotFoundException | InstantiationException | IllegalAccessException |
| 627 | | ClassCastException | NoSuchMethodException | InvocationTargetException e) { |
| 628 | Log.e(TAG, "Bad overriden class", e); |
| 629 | } |
| 630 | } |
| 631 | |
| 632 | try { |
| 633 | return clazz.newInstance(); |
| 634 | } catch (InstantiationException|IllegalAccessException e) { |
| 635 | throw new RuntimeException(e); |
| 636 | } |
| 637 | } |
Tony Wickham | 580edcf | 2017-02-09 08:28:52 -0800 | [diff] [blame] | 638 | |
| 639 | /** |
| 640 | * Returns a HashSet with a single element. We use this instead of Collections.singleton() |
| 641 | * because HashSet ensures all operations, such as remove, are supported. |
| 642 | */ |
| 643 | public static <T> HashSet<T> singletonHashSet(T elem) { |
| 644 | HashSet<T> hashSet = new HashSet<>(1); |
| 645 | hashSet.add(elem); |
| 646 | return hashSet; |
| 647 | } |
Mario Bertschler | 48198d0 | 2017-01-30 17:05:24 -0800 | [diff] [blame] | 648 | |
The Android Open Source Project | 31dd503 | 2009-03-03 19:32:27 -0800 | [diff] [blame] | 649 | } |