| /* |
| * Copyright (C) 2020 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.launcher3.ui; |
| |
| import android.app.Activity; |
| import android.app.Application; |
| import android.os.Bundle; |
| |
| import androidx.test.InstrumentationRegistry; |
| |
| import com.android.launcher3.tapl.TestHelpers; |
| |
| import java.util.WeakHashMap; |
| |
| class ActivityLeakTracker implements Application.ActivityLifecycleCallbacks { |
| private final WeakHashMap<Activity, Boolean> mActivities = new WeakHashMap<>(); |
| |
| ActivityLeakTracker() { |
| if (!TestHelpers.isInLauncherProcess()) return; |
| final Application app = |
| (Application) InstrumentationRegistry.getTargetContext().getApplicationContext(); |
| app.registerActivityLifecycleCallbacks(this); |
| } |
| |
| @Override |
| public void onActivityCreated(Activity activity, Bundle bundle) { |
| mActivities.put(activity, true); |
| } |
| |
| @Override |
| public void onActivityStarted(Activity activity) { |
| } |
| |
| @Override |
| public void onActivityResumed(Activity activity) { |
| } |
| |
| @Override |
| public void onActivityPaused(Activity activity) { |
| } |
| |
| @Override |
| public void onActivityStopped(Activity activity) { |
| } |
| |
| @Override |
| public void onActivitySaveInstanceState(Activity activity, Bundle bundle) { |
| } |
| |
| @Override |
| public void onActivityDestroyed(Activity activity) { |
| } |
| |
| public boolean noLeakedActivities() { |
| int liveActivities = 0; |
| int destroyedActivities = 0; |
| |
| for (Activity activity : mActivities.keySet()) { |
| if (activity.isDestroyed()) { |
| ++destroyedActivities; |
| } else { |
| ++liveActivities; |
| } |
| } |
| |
| if (liveActivities > 2) return false; |
| |
| // It's OK to have 1 leaked activity if no active activities exist. |
| return liveActivities == 0 ? destroyedActivities <= 1 : destroyedActivities == 0; |
| } |
| } |