Android Wakelock根本不工作

这里少了什么？我想从睡眠中唤醒设备，但什么也没发生。我当然不想阻止睡觉

final Handler handler = new Handler(); 
Runnable runable = new Runnable() { 
            @Override 
            public void run() { 
            try{
                wl = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK |  PowerManager.ACQUIRE_CAUSES_WAKEUP, "TAG");
                         wl.acquire();
                         wl.release();

                Log.v("INTERVAL: ", "NOW" );
                handler.postDelayed(this, 5000);
            }
            catch (Exception e) {
                        // TODO: handle exception
            }
     }

这是日志：正如它被问到的；希望它能帮助你找到你需要的东西

08-11 21:09:54.190: D/DateTimeIntentReceiver(2131): com.android.systemui.statusbar.phone.COLLAPSED is received, dialog_state : false, mDialog : null
08-11 21:09:54.190: E/TabletStatusBar(3982): closing mini mode apps panel
08-11 21:09:54.200: V/yamaha::media::VolumeCtrl(3841): VolumeCtrl::createVolume()
08-11 21:09:54.200: D/yamaha::media::VolumeCtrl(3841): Dir0      : AP Playback Music SP (0001h)
08-11 21:09:54.200: D/yamaha::media::VolumeCtrl(3841): Dir0Att   : AP Playback Music SP (0001h)
08-11 21:09:54.200: D/yamaha::media::VolumeCtrl(3841): DacMaster : AP Playback Music SP (0001h)
08-11 21:09:54.200: D/yamaha::media::VolumeCtrl(3841): Sp        : AP Playback Music SP (FE81h)
08-11 21:09:54.200: V/yamaha::media::UserDep(3841): UserDep::getRouteInfo(output: audioengine=0, devices=00000002h
08-11 21:09:54.200: V/yamaha::media::UserDep(3841):                       incall: onoff=0, devices=00000000h
08-11 21:09:54.200: V/yamaha::media::UserDep(3841):                       capture: onoff=0, devices=00100000h, audioSource=1
08-11 21:09:54.200: V/yamaha::media::UserDep(3841):                       playback: audio_onoff=1, line_onoff=0)
08-11 21:09:54.200: V/yamaha::media::UserDep(3841): Playback[Audio], Output[dev:DAC, NonAE]
08-11 21:09:54.200: V/yamaha::media::UserDep(3841): editDacDst(devices=2h) HPOUT Off
08-11 21:09:54.200: V/yamaha::media::UserDep(3841): editDacDst(devices=2h) RCOUT Off
08-11 21:09:54.200: V/yamaha::media::UserDep(3841): editDacDst(devices=2h) LINEOUT1 Off
08-11 21:09:54.200: V/yamaha::media::VolumeCtrl(3841): VolumeCtrl::setVolume()
08-11 21:09:54.200: D/yamaha::media::VolumeCtrl(3841): VolumeCtrl::setVolume() FM Playback: Ready
08-11 21:09:54.200: D/yamaha::media::VolumeCtrl(3841): VolumeCtrl::setVolume() VoiceCall: Ready
08-11 21:09:54.215: I/SurfaceFlinger(1721): id=521(69) createSurface 0x2f924 (1280x752),1 flag=0, Keyguard
08-11 21:09:54.215: V/WindowManager(3871): rotationForOrientationLw(orient=4, last=0); user=0 USER_ROTATION_LOCKED mLidOpen=-1 mDockMode=0 mHdmiPlugged=false mAccelerometerDefault=0 sensorRotation=-1
08-11 21:09:54.235: D/KeyguardUpdateMonitor(3871): handleClockVisibilityChanged()
08-11 21:09:54.235: D/KeyguardViewMediator(3871): adjustStatusBarLocked: mShowing=true mHidden=false isSecure=true --> flags=0x1290000
08-11 21:09:54.235: V/LockPatternKeyguardView(3871): View com.android.internal.widget.TransportControlView@41523698 requested hide transports
08-11 21:09:54.240: D/LockPatternKeyguardView(3871): focused
08-11 21:09:54.240: I/TabletStatusBar(3982): DISABLE_CLOCK: yes
08-11 21:09:54.255: E/TabletStatusBar(3982): closing mini mode apps panel
08-11 21:09:54.265: I/ALSAModule(3841): Initialized ALSA PLAYBACK device hifi
08-11 21:09:54.290: D/KeyguardUpdateMonitor(3871): handleClockVisibilityChanged()
08-11 21:09:54.290: D/KeyguardViewMediator(3871): adjustStatusBarLocked: mShowing=true mHidden=false isSecure=true --> flags=0x1290000
08-11 21:09:54.510: E/DataRouter(1719): usb connection is true 
08-11 21:09:54.510: E/DataRouter(1719): DSR is ON. Don't send DTR ON.
08-11 21:09:54.525: I/AudioPolicyManager(3841): stopOutput() output 1, stream 1, session 5715
08-11 21:09:54.550: I/AudioFlinger(3841): stop output streamType (0, 1) for 1
08-11 21:09:55.055: V/yamaha::media::VolumeCtrl(3841): VolumeCtrl::createVolume()
08-11 21:09:55.055: D/yamaha::media::VolumeCtrl(3841): Dir0      : AP Playback Music SP (0001h)
08-11 21:09:55.055: D/yamaha::media::VolumeCtrl(3841): Dir0Att   : AP Playback Music SP (0001h)
08-11 21:09:55.055: D/yamaha::media::VolumeCtrl(3841): DacMaster : AP Playback Music SP (0001h)
08-11 21:09:55.055: D/yamaha::media::VolumeCtrl(3841): Sp        : AP Playback Music SP (FE81h)
08-11 21:09:55.055: V/yamaha::media::UserDep(3841): UserDep::getRouteInfo(output: audioengine=0, devices=00000002h
08-11 21:09:55.055: V/yamaha::media::UserDep(3841):                       incall: onoff=0, devices=00000000h
08-11 21:09:55.055: V/yamaha::media::UserDep(3841):                       capture: onoff=0, devices=00100000h, audioSource=1
08-11 21:09:55.055: V/yamaha::media::UserDep(3841):                       playback: audio_onoff=1, line_onoff=0)
08-11 21:09:55.055: V/yamaha::media::UserDep(3841): Playback[Audio], Output[dev:DAC, NonAE]
08-11 21:09:55.055: V/yamaha::media::UserDep(3841): editDacDst(devices=2h) HPOUT Off
08-11 21:09:55.055: V/yamaha::media::UserDep(3841): editDacDst(devices=2h) RCOUT Off
08-11 21:09:55.055: V/yamaha::media::UserDep(3841): editDacDst(devices=2h) LINEOUT1 Off
08-11 21:09:55.055: V/yamaha::media::VolumeCtrl(3841): VolumeCtrl::setVolume()
08-11 21:09:55.055: D/yamaha::media::VolumeCtrl(3841): VolumeCtrl::setVolume() FM Playback: Ready
08-11 21:09:55.055: D/yamaha::media::VolumeCtrl(3841): VolumeCtrl::setVolume() VoiceCall: Ready
08-11 21:09:56.510: E/DataRouter(1719): usb connection is true 
08-11 21:09:56.510: E/DataRouter(1719): DSR is ON. Don't send DTR ON.
08-11 21:09:57.655: I/ALSAModule(3841): Terminated ALSA PLAYBACK device hifi
08-11 21:09:58.035: V/yamaha::media::VolumeCtrl(3841): VolumeCtrl::createVolume()
08-11 21:09:58.035: V/yamaha::media::UserDep(3841): UserDep::getRouteInfo(output: audioengine=0, devices=00000002h
08-11 21:09:58.035: V/yamaha::media::UserDep(3841):                       incall: onoff=0, devices=00000000h
08-11 21:09:58.035: V/yamaha::media::UserDep(3841):                       capture: onoff=0, devices=00100000h, audioSource=1
08-11 21:09:58.035: V/yamaha::media::UserDep(3841):                       playback: audio_onoff=0, line_onoff=0)
08-11 21:09:58.035: V/yamaha::media::UserDep(3841): ALL Off
08-11 21:09:58.035: V/yamaha::media::VolumeCtrl(3841): VolumeCtrl::setVolume()
08-11 21:09:58.035: D/yamaha::media::VolumeCtrl(3841): VolumeCtrl::setVolume() FM Playback: Ready
08-11 21:09:58.035: D/yamaha::media::VolumeCtrl(3841): VolumeCtrl::setVolume() VoiceCall: Ready
08-11 21:09:58.510: E/DataRouter(1719): usb connection is true 
08-11 21:09:58.510: E/DataRouter(1719): DSR is ON. Don't send DTR ON.
08-11 21:09:59.955: D/KeyguardViewMediator(3871): handleTimeout
08-11 21:09:59.955: D/PowerManagerService(3871): releaseWakeLockLocked flags=0x0 tag=keyguard myUID=1000 myPID=3871 myTID=3914
08-11 21:09:59.995: E/AlarmManagerService(3871): android_server_AlarmManagerService_set to type=3, 172800.000000000
08-11 21:09:59.995: V/AlarmManager(3871): waitForAlarm result :8
08-11 21:10:00.000: E/ActivityManager(3871): MANGAL broadcastIntentInPackageINTENT--->1:Intent { act=android.intent.action.TIME_TICK flg=0x40000004 (has extras) } packageName:android
08-11 21:10:00.000: E/ActivityManager(3871): MANGAL INTENT:Intent { act=android.intent.action.TIME_TICK flg=0x40000004 (has extras) }
08-11 21:10:00.000: E/ActivityManager(3871): MANGAL broadcastIntentInPackageINTENT--->2:Intent { act=android.intent.action.TIME_TICK flg=0x40000004 (has extras) }

释放；应仅在作业完成时调用。如果你马上获得并释放，什么都不会发生。试试这个：

 final Handler handler = new Handler(); 
 Runnable runnable = new Runnable() { 
        @Override 
        public void run() { 
            try{


                 wl = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP, "TAG");
                 wl.acquire();

                //PUT HERE THE CODE YOU WANNA EXECUTE

                 wl.release();

            }
            catch (Exception e) {
                // TODO: handle exception
            } }
      };


       Log.v("INTERVAL: ", "NOW" );
       handler.postDelayed(runnable, 5000);

此外，请确保将权限放在清单文件上：

 <uses-permission android:name="android.permission.WAKE_LOCK" />

---

你能附上日志吗？答案是tnx，B我有权限C嗯，我试过你的代码，它不起作用。我现在只想唤醒屏幕。实际上，这个代码“阻止”设备睡眠。它并没有真正唤醒屏幕。你在哪里运行它？您当然需要从计划在唤醒设备时执行的BroadcastReceiver运行它。在BroadcastReceiver上执行时，您实际上不需要处理程序……而且您可能应该检查锁的类型：告诉您我的确切目标；当我的gps坐标达到特定值时，我想唤醒屏幕，所以我需要呼叫广播。对吗？也许你可以考虑使用屏幕唤醒突然可能没有用…想象一下如果手机在口袋里，没有人会看到它。但通过通知，你可以附加一些声音和振动，让用户决定是否打开你的应用程序。请看这里：