1 /* 2 * Copyright (C) 2018 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 17 package com.android.car.carlauncher; 18 19 import android.annotation.Nullable; 20 import android.car.CarNotConnectedException; 21 import android.car.content.pm.CarPackageManager; 22 import android.content.Context; 23 import android.content.Intent; 24 import android.content.pm.LauncherActivityInfo; 25 import android.content.pm.LauncherApps; 26 import android.content.pm.PackageManager; 27 import android.graphics.ColorMatrix; 28 import android.graphics.ColorMatrixColorFilter; 29 import android.graphics.drawable.Drawable; 30 import android.os.Process; 31 import android.util.Log; 32 33 import java.util.ArrayList; 34 import java.util.Comparator; 35 import java.util.List; 36 37 /** 38 * Util class that contains helper method used by app launcher classes. 39 */ 40 class AppLauncherUtils { 41 42 private static final String TAG = "AppLauncherUtils"; 43 AppLauncherUtils()44 private AppLauncherUtils() { 45 } 46 47 /** 48 * Comparator for {@link AppMetaData} that sorts the list 49 * by the "displayName" property in ascending order. 50 */ 51 static final Comparator<AppMetaData> ALPHABETICAL_COMPARATOR = Comparator 52 .comparing(AppMetaData::getDisplayName, String::compareToIgnoreCase); 53 54 /** 55 * Helper method that launches the app given the app's AppMetaData. 56 * 57 * @param app the requesting app's AppMetaData 58 */ launchApp(Context context, AppMetaData app)59 static void launchApp(Context context, AppMetaData app) { 60 Intent intent = 61 context.getPackageManager().getLaunchIntentForPackage(app.getPackageName()); 62 context.startActivity(intent); 63 } 64 65 /** 66 * Converts a {@link Drawable} to grey scale. 67 * 68 * @param drawable the original drawable 69 * @return the grey scale drawable 70 */ toGrayscale(Drawable drawable)71 static Drawable toGrayscale(Drawable drawable) { 72 ColorMatrix matrix = new ColorMatrix(); 73 matrix.setSaturation(0); 74 ColorMatrixColorFilter filter = new ColorMatrixColorFilter(matrix); 75 // deep copy the original drawable 76 Drawable newDrawable = drawable.getConstantState().newDrawable().mutate(); 77 newDrawable.setColorFilter(filter); 78 return newDrawable; 79 } 80 81 /** 82 * Gets all apps that support launching from launcher in unsorted order. 83 * 84 * @param launcherApps The {@link LauncherApps} system service 85 * @param carPackageManager The {@link CarPackageManager} system service 86 * @param packageManager The {@link PackageManager} system service 87 * @return a list of all apps' metadata 88 */ 89 @Nullable getAllLaunchableApps( LauncherApps launcherApps, CarPackageManager carPackageManager, PackageManager packageManager)90 static List<AppMetaData> getAllLaunchableApps( 91 LauncherApps launcherApps, 92 CarPackageManager carPackageManager, 93 PackageManager packageManager) { 94 95 if (launcherApps == null || carPackageManager == null || packageManager == null) { 96 return null; 97 } 98 99 List<AppMetaData> apps = new ArrayList<>(); 100 101 Intent intent = new Intent(Intent.ACTION_MAIN, null); 102 intent.addCategory(Intent.CATEGORY_LAUNCHER); 103 104 List<LauncherActivityInfo> availableActivities = 105 launcherApps.getActivityList(null, Process.myUserHandle()); 106 for (LauncherActivityInfo info : availableActivities) { 107 String packageName = info.getComponentName().getPackageName(); 108 boolean isDistractionOptimized = 109 isActivityDistractionOptimized(carPackageManager, packageName, info.getName()); 110 111 AppMetaData app = new AppMetaData( 112 info.getLabel(), 113 packageName, 114 info.getApplicationInfo().loadIcon(packageManager), 115 isDistractionOptimized); 116 apps.add(app); 117 } 118 return apps; 119 } 120 121 /** 122 * Gets if an activity is distraction optimized. 123 * 124 * @param carPackageManager The {@link CarPackageManager} system service 125 * @param packageName The package name of the app 126 * @param activityName The requested activity name 127 * @return true if the supplied activity is distraction optimized 128 */ isActivityDistractionOptimized( CarPackageManager carPackageManager, String packageName, String activityName)129 static boolean isActivityDistractionOptimized( 130 CarPackageManager carPackageManager, String packageName, String activityName) { 131 boolean isDistractionOptimized = false; 132 // try getting distraction optimization info 133 try { 134 if (carPackageManager != null) { 135 isDistractionOptimized = 136 carPackageManager.isActivityDistractionOptimized(packageName, activityName); 137 } 138 } catch (CarNotConnectedException e) { 139 Log.e(TAG, "Car not connected when getting DO info", e); 140 } 141 return isDistractionOptimized; 142 } 143 } 144