Android 11 About SleepToken / (Settings)Screen timeout
1.Android 11 -- 强制清理app后台,关于权限引发的问题2.Android 11 (MTK)状态栏图标反色-->跟随当前应用变化代码流程3.Android 11 --关于Toast的异常4.Android 11 -- 关于dialog和悬浮窗导致SystemUI状态栏下拉频繁闪烁(窗口焦点问题)5.Android 11 下拉菜单长按WiFi图标SystemUI ANR6.Android 11 sim卡来电不弹出悬浮通知,默认来电默认全屏7.Android Bluetooth 蓝牙开发/蓝牙协议 小结8.Android11 —— 自定义添加一个System Services9.Android系统——AOSP相关-->随记10.Android11 , Launcher3 切换阿拉伯语,最近应用(后台)不能滑动11.Android 底层问题日志记录12.Android 11 -- app 服务保活13.Android11 - 添加自定义服务注意事项14.Android 11 导航栏添加一个虚拟按钮--问题合集15.Android 11--设置第三方Launcher并默认 与 如何预置apk16.Android11 系统修改 AOSP输入法的默认输入键盘布局17.Settings里面切换不同Launcher的代码流程18.关于Android`系统默认屏保`19.关于Android 11 Settings添加新的选项界面的细节20.Android 11 自由窗口模式 || 全屏模式启动app21.强制app横屏显示或者竖屏显示(动态)22.Android 11 禁止从SD卡上安装第三方应用23.实体物理音量键替换为home键24.AMS- kill Launcher进程的代码流程25.Android 11 recovery恢复出厂设置保留某些文件26.Android 11 禁用 adb root (userdebug版本)27.Android11 应用默认获取通知使用权限(可以获取系统所有通知信息)28.Android 11 UsbDebug 关于adb RSA 认证29.Android 11 NavigationBar && Status Bar 如果改变背景颜色30.Anroid 11 关于NotificationManager && NotificationManagerService -- 衍生到权限管理31.Android13 控制设置界面 双栏显示或单栏显示32.Android 13 大屏显示时关于SystemUI和Launcher3问题33.Android 系统适配无源码app34.Android 11 关于app的权限重置35.Android 11.0 关于app进程保活36.Android 11 关于按键拦截/按键事件处理分享37.Android R Settings关于屏保/PowerManagerService欺骗系统不让其进入休眠状态38.Android13 关于SystemUI更新/Nav Bar add volume button&&other button39.Android 13 移植EthernetSettings/Ethernet更新40.Anrdoir 13 关于设置静态IP后,突然断电,在上电开机卡动画41.Android T(13) The app is granted permissions by default42.Android T 关于屏幕旋转 (一)43.Android T about screen rotation(二)44.Android 13 about launcher3 (1)45.Android T don't abort background activity starts46.Android T adout replace bootanimation47.Launcher start App WINDOWING_MODE_FREEFORM
48.Android 11 About SleepToken / (Settings)Screen timeout
Android R 激活Settings里面的息屏休眠, 最前台运行的Activity生命周期 ->onPause->onStop
adb shell dumpsys window policy //获取PhoneWindowManager的dump信息
...
bootCompleted=true
screenState=SCREEN_STATE_ON /SCREEN_STATE_OFF
interactiveState=INTERACTIVE_STATE_AWAKE /INTERACTIVE_STATE_SLEEP
...
case A.不使用屏保
当设备超过设定的时间后,进入SCREEN_STATE_OFF状态,最前台运行的Activity生命周期 ->onPause->onStop.
那到底是谁让Activity进入了onStop状态?
跟踪代码发现:
/frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java
// Called on the DisplayManager's DisplayPowerController thread.
@Override
public void screenTurnedOff() {
if (DEBUG_WAKEUP) Slog.i(TAG, "Screen turned off...");
updateScreenOffSleepToken(true);
mDefaultDisplayPolicy.screenTurnedOff();
synchronized (mLock) {
if (mKeyguardDelegate != null) {
mKeyguardDelegate.onScreenTurnedOff();
}
}
mDefaultDisplayRotation.updateOrientationListener();
reportScreenStateToVrManager(false);
}
// Called on the DisplayManager's DisplayPowerController thread.
@Override
public void screenTurningOn(final ScreenOnListener screenOnListener) {
if (DEBUG_WAKEUP) Slog.i(TAG, "Screen turning on...");
Trace.asyncTraceBegin(Trace.TRACE_TAG_WINDOW_MANAGER, "screenTurningOn", 0 /* cookie */);
updateScreenOffSleepToken(false);
mDefaultDisplayPolicy.screenTurnedOn(screenOnListener);
...
}
//SCREEN_STATE_OFF 时调用screenTurnedOff(..),这个函数里面有updateScreenOffSleepToken(true)
// TODO (multidisplay): Support multiple displays in WindowManagerPolicy.
private void updateScreenOffSleepToken(boolean acquire) {
if (acquire) {
mScreenOffSleepTokenAcquirer.acquire(DEFAULT_DISPLAY);
} else {
mScreenOffSleepTokenAcquirer.release(DEFAULT_DISPLAY);
}
}
frameworks/base/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
//SleepTokenAcquirer是ActivityTaskManagerService的内部类
final class SleepTokenAcquirerImpl implements ActivityTaskManagerInternal.SleepTokenAcquirer {
private final String mTag;
private final SparseArray<RootWindowContainer.SleepToken> mSleepTokens =
new SparseArray<>();
SleepTokenAcquirerImpl(@NonNull String tag) {
mTag = tag;
}
@Override
public void acquire(int displayId) {
synchronized (mGlobalLock) {
if (!mSleepTokens.contains(displayId)) {
mSleepTokens.append(displayId,
mRootWindowContainer.createSleepToken(mTag, displayId));
//调用ActivityTaskManagerService的updateSleepIfNeededLocked方法对resume的Activity进行pause
updateSleepIfNeededLocked();
}
}
}
@Override
public void release(int displayId) {
synchronized (mGlobalLock) {
final RootWindowContainer.SleepToken token = mSleepTokens.get(displayId);
if (token != null) {
mRootWindowContainer.removeSleepToken(token);
mSleepTokens.remove(displayId);
}
}
}
}
1.(息屏)在获取了SleepToken后,会将resume的Activity进入pause状态.如下:
SleepTokenAcquirerImpl::acquire()
--->
RootWindowContainer::createSleepToken()->ActivityTaskManagerService::updateSleepIfNeededLocked()
--->
ActivityStackSupervisor::goingToSleepLocked()
--->
ActivityStackSupervisor::checkReadyForSleepLocked()
--->
RootWindowContainer::putStacksToSleep()
--->
ActivityStack::goToSleepIfPossible()
--->
ActivityStack::startPausingLocked()
2.(亮屏)在释放了SleepToken后,如果此时没有SleepToken了,并且也没有keyguard,会对前台Activity进行resume.
SleepTokenAcquirerImpl::release()
--->
RootWindowContainer::removeSleepToken()
--->
ActivityTaskManagerService::updateSleepIfNeededLocked()
--->
RootWindowContainer::applySleepTokens()
--->
ActivityStack::resumeTopActivityUncheckedLocked()
如果不想设备当前Activity被pause,如下:
+++ b/frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -4708,7 +4708,7 @@ public class PhoneWindowManager implements WindowManagerPolicy {
public void screenTurnedOff() {
if (DEBUG_WAKEUP) Slog.i(TAG, "Screen turned off...");
- updateScreenOffSleepToken(true);
+ //updateScreenOffSleepToken(true);
mDefaultDisplayPolicy.screenTurnedOff();
synchronized (mLock) {
cast B.使用屏保(com.android.deskclock/android.service.dreams.DreamActivity)
前台Activity --->App A
com.android.deskclock/android.service.dreams.DreamActivity ---> App B
App A 被 App B 挤下去了,当前App A不在栈顶(前台)时,App A就会执行on Pause流程
SleepToken
frameworks/base/services/core/java/com/android/server/wm/RootWindowContainer.java
//SleepToken是RootWindowContainer的内部类
static final class SleepToken {
private final String mTag;
private final long mAcquireTime;
private final int mDisplayId;
final int mHashKey;
SleepToken(String tag, int displayId) {
mTag = tag;
mDisplayId = displayId;
mAcquireTime = SystemClock.uptimeMillis();
mHashKey = makeSleepTokenKey(mTag, mDisplayId);
}
@Override
public String toString() {
return "{\"" + mTag + "\", display " + mDisplayId
+ ", acquire at " + TimeUtils.formatUptime(mAcquireTime) + "}";
}
}
分类:
Android
【推荐】编程新体验,更懂你的AI,立即体验豆包MarsCode编程助手
【推荐】凌霞软件回馈社区,博客园 & 1Panel & Halo 联合会员上线
【推荐】抖音旗下AI助手豆包,你的智能百科全书,全免费不限次数
【推荐】博客园社区专享云产品让利特惠,阿里云新客6.5折上折
【推荐】轻量又高性能的 SSH 工具 IShell:AI 加持,快人一步
· 本地部署 DeepSeek:小白也能轻松搞定!
· 如何给本地部署的DeepSeek投喂数据,让他更懂你
· 从 Windows Forms 到微服务的经验教训
· 李飞飞的50美金比肩DeepSeek把CEO忽悠瘸了,倒霉的却是程序员
· 超详细,DeepSeek 接入PyCharm实现AI编程!(支持本地部署DeepSeek及官方Dee