1.BatteryService 电池监听
sendBatteryChangedIntentLocked
2.DisplayManagerService 投屏相关
createVirtualDisplayLocked
releaseVirtualDisplayInternal
3.TelephonyRegistry 通话状态监听
broadcastCallStateChanged
4.PowerManagerService 休眠相关
updateGlobalWakefulnessLocked
5.DeviceStorageMonitorService 存储相关
updateNotifications
6.ProcessErrorStateRecord anr相关
appNotResponding
7.Watchdog
logWatchog
8.Camera CameraManager 摄像头 闪光灯相关
postSingleCameraOpenedUpdate
onTorchStatusChangedLocked
open
9.HotspotControllerImpl 热点相关
onStateChanged
10.PlayerBase 音频播放相关
updateState
11.MediaProjectionManagerService 录屏相关
dispatchStart
dispatchStop
