| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.systemui.pip.phone; |
| |
| import static android.app.ActivityManager.StackId.PINNED_STACK_ID; |
| |
| import android.app.ActivityManager.StackInfo; |
| import android.app.IActivityManager; |
| import android.content.ComponentName; |
| import android.os.RemoteException; |
| import android.util.Log; |
| |
| public class PipUtils { |
| |
| private static final String TAG = "PipUtils"; |
| |
| /** |
| * @return the ComponentName of the top activity in the pinned stack, or null if none exists. |
| */ |
| public static ComponentName getTopPinnedActivity(IActivityManager activityManager) { |
| try { |
| StackInfo pinnedStackInfo = activityManager.getStackInfo(PINNED_STACK_ID); |
| if (pinnedStackInfo != null && pinnedStackInfo.taskIds != null && |
| pinnedStackInfo.taskIds.length > 0) { |
| return pinnedStackInfo.topActivity; |
| } |
| } catch (RemoteException e) { |
| Log.w(TAG, "Unable to get pinned stack."); |
| } |
| return null; |
| } |
| } |