1 /* 2 * Copyright (C) 2017 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.systemui.pip.phone; 18 19 import static android.app.WindowConfiguration.ACTIVITY_TYPE_UNDEFINED; 20 import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED; 21 22 import android.app.ActivityManager.StackInfo; 23 import android.app.IActivityManager; 24 import android.content.ComponentName; 25 import android.content.Context; 26 import android.os.RemoteException; 27 import android.util.Log; 28 import android.util.Pair; 29 30 public class PipUtils { 31 32 private static final String TAG = "PipUtils"; 33 34 /** 35 * @return the ComponentName and user id of the top non-SystemUI activity in the pinned stack. 36 * The component name may be null if no such activity exists. 37 */ 38 public static Pair<ComponentName, Integer> getTopPinnedActivity(Context context, 39 IActivityManager activityManager) { 40 try { 41 final String sysUiPackageName = context.getPackageName(); 42 final StackInfo pinnedStackInfo = 43 activityManager.getStackInfo(WINDOWING_MODE_PINNED, ACTIVITY_TYPE_UNDEFINED); 44 if (pinnedStackInfo != null && pinnedStackInfo.taskIds != null && 45 pinnedStackInfo.taskIds.length > 0) { 46 for (int i = pinnedStackInfo.taskNames.length - 1; i >= 0; i--) { 47 ComponentName cn = ComponentName.unflattenFromString( 48 pinnedStackInfo.taskNames[i]); 49 if (cn != null && !cn.getPackageName().equals(sysUiPackageName)) { 50 return new Pair<>(cn, pinnedStackInfo.taskUserIds[i]); 51 } 52 } 53 } 54 } catch (RemoteException e) { 55 Log.w(TAG, "Unable to get pinned stack."); 56 } 57 return new Pair<>(null, 0); 58 } 59 } 60
