|
| 1 | +/* |
| 2 | + * This file is part of HyperCeiler. |
| 3 | + * |
| 4 | + * HyperCeiler is free software: you can redistribute it and/or modify |
| 5 | + * it under the terms of the GNU Affero General Public License as |
| 6 | + * published by the Free Software Foundation, either version 3 of the |
| 7 | + * License. |
| 8 | + * |
| 9 | + * This program is distributed in the hope that it will be useful, |
| 10 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | + * GNU Affero General Public License for more details. |
| 13 | + * |
| 14 | + * You should have received a copy of the GNU Affero General Public License |
| 15 | + * along with this program. If not, see <https://www.gnu.org/licenses/>. |
| 16 | + * |
| 17 | + * Copyright (C) 2023-2026 HyperCeiler Contributions |
| 18 | + */ |
| 19 | +package com.sevtinge.hyperceiler.libhook.utils.guard; |
| 20 | + |
| 21 | +import android.app.Activity; |
| 22 | +import android.app.ActivityManager; |
| 23 | +import android.app.Application; |
| 24 | +import android.content.ComponentName; |
| 25 | +import android.content.Context; |
| 26 | +import android.os.Bundle; |
| 27 | + |
| 28 | +import java.util.Collections; |
| 29 | +import java.util.HashSet; |
| 30 | +import java.util.List; |
| 31 | +import java.util.Set; |
| 32 | +import java.util.concurrent.atomic.AtomicBoolean; |
| 33 | + |
| 34 | +public final class RearScreenFlowGuard { |
| 35 | + private static final String REAR_SCREEN_DETAIL_ACTIVITY = "com.rearScreen.RearScreenDetailActivity"; |
| 36 | + private static final AtomicBoolean sLifecycleRegistered = new AtomicBoolean(false); |
| 37 | + private static final Set<String> sActiveActivityClassNames = |
| 38 | + Collections.synchronizedSet(new HashSet<>()); |
| 39 | + |
| 40 | + private RearScreenFlowGuard() { |
| 41 | + } |
| 42 | + |
| 43 | + public static void ensureActivityTrackerRegistered(Context context) { |
| 44 | + if (context == null) { |
| 45 | + return; |
| 46 | + } |
| 47 | + Context applicationContext = context.getApplicationContext(); |
| 48 | + if (!(applicationContext instanceof Application application)) { |
| 49 | + return; |
| 50 | + } |
| 51 | + refreshCurrentActivity(applicationContext); |
| 52 | + if (!sLifecycleRegistered.compareAndSet(false, true)) { |
| 53 | + return; |
| 54 | + } |
| 55 | + application.registerActivityLifecycleCallbacks(new Application.ActivityLifecycleCallbacks() { |
| 56 | + @Override |
| 57 | + public void onActivityCreated(Activity activity, Bundle savedInstanceState) { |
| 58 | + // No-op. |
| 59 | + } |
| 60 | + |
| 61 | + @Override |
| 62 | + public void onActivityStarted(Activity activity) { |
| 63 | + sActiveActivityClassNames.add(activity.getClass().getName()); |
| 64 | + } |
| 65 | + |
| 66 | + @Override |
| 67 | + public void onActivityResumed(Activity activity) { |
| 68 | + sActiveActivityClassNames.add(activity.getClass().getName()); |
| 69 | + } |
| 70 | + |
| 71 | + @Override |
| 72 | + public void onActivityPaused(Activity activity) { |
| 73 | + // No-op. |
| 74 | + } |
| 75 | + |
| 76 | + @Override |
| 77 | + public void onActivityStopped(Activity activity) { |
| 78 | + sActiveActivityClassNames.remove(activity.getClass().getName()); |
| 79 | + } |
| 80 | + |
| 81 | + @Override |
| 82 | + public void onActivitySaveInstanceState(Activity activity, Bundle outState) { |
| 83 | + // No-op. |
| 84 | + } |
| 85 | + |
| 86 | + @Override |
| 87 | + public void onActivityDestroyed(Activity activity) { |
| 88 | + sActiveActivityClassNames.remove(activity.getClass().getName()); |
| 89 | + } |
| 90 | + }); |
| 91 | + } |
| 92 | + |
| 93 | + public static boolean isRearScreenActivityActive() { |
| 94 | + return sActiveActivityClassNames.contains(REAR_SCREEN_DETAIL_ACTIVITY); |
| 95 | + } |
| 96 | + |
| 97 | + public static boolean isRearScreenActivityActive(Context context) { |
| 98 | + if (isRearScreenActivityActive()) { |
| 99 | + return true; |
| 100 | + } |
| 101 | + if (context == null) { |
| 102 | + return false; |
| 103 | + } |
| 104 | + try { |
| 105 | + ActivityManager activityManager = context.getSystemService(ActivityManager.class); |
| 106 | + if (activityManager == null) { |
| 107 | + return false; |
| 108 | + } |
| 109 | + List<ActivityManager.RunningTaskInfo> runningTasks = activityManager.getRunningTasks(1); |
| 110 | + if (runningTasks == null || runningTasks.isEmpty()) { |
| 111 | + return false; |
| 112 | + } |
| 113 | + ComponentName topActivity = runningTasks.get(0).topActivity; |
| 114 | + return topActivity != null && REAR_SCREEN_DETAIL_ACTIVITY.equals(topActivity.getClassName()); |
| 115 | + } catch (Throwable ignored) { |
| 116 | + return false; |
| 117 | + } |
| 118 | + } |
| 119 | + |
| 120 | + private static void refreshCurrentActivity(Context context) { |
| 121 | + try { |
| 122 | + ActivityManager activityManager = context.getSystemService(ActivityManager.class); |
| 123 | + if (activityManager == null) { |
| 124 | + return; |
| 125 | + } |
| 126 | + List<ActivityManager.RunningTaskInfo> runningTasks = activityManager.getRunningTasks(1); |
| 127 | + if (runningTasks == null || runningTasks.isEmpty()) { |
| 128 | + return; |
| 129 | + } |
| 130 | + ComponentName topActivity = runningTasks.get(0).topActivity; |
| 131 | + if (topActivity != null) { |
| 132 | + sActiveActivityClassNames.add(topActivity.getClassName()); |
| 133 | + } |
| 134 | + } catch (Throwable ignored) { |
| 135 | + } |
| 136 | + } |
| 137 | +} |
0 commit comments