我只是为我的玻璃设备创建一个简单的应用程序。
然而有时在使用设备时，我听到一声（如哔哔声），屏幕关闭。设备无法应答任何唤醒命令。我点击触摸板，移动我的头，没有任何事情发生。
所以我需要按下电源按钮（发出一点声音）然后再按一下。 现在我的杯子又回来了。
我猜我的应用是什么让它发生了。 我能做错什么？ 我的应用程序刚刚开始使用Zxing读取QRCODE。
12-19 16:33:09.109: D/dalvikvm(378): GC_CONCURRENT freed 381K, 7% free 9732K/10375K,
paused 5ms+10ms
12-19 16:33:09.296: I/DonManager(197): onTimerExpired!
12-19 16:33:09.296: V/EyeGestureService(197): Native call nativeIsEyeGestureDetectorRunning
12-19 16:33:09.296: I/DonManager(197): Timer expired and sensors action, so switching to state = DEFER_TO_SENSORS
12-19 16:33:09.296: V/DonManager(197): Switching from state: TIMED_FORCED_DONNED --> DEFER_TO_SENSORS
12-19 16:33:09.296: I/DonManager(197): Stopping the FORCED_DONNED timer.
12-19 16:33:09.296: V/DonManager(197): DonDoffManager: deferring to sensors. State = DOFFED
12-19 16:33:09.296: I/DonManager(197): Calling onStateChanged(): DOFFED
12-19 16:33:09.296: V/InputHub(197): Cancelling all event sequences.
12-19 16:33:09.296: D/TouchpadManager(197): Requesting touchpad sleep mode = true
12-19 16:33:09.296: I/GlassSystemServer(197): Applying device state: doffed.
12-19 16:33:09.335: W/DonStateReceiver(456): Received com.google.glass.action.DON_STATE even though we are not registered.
12-19 16:33:09.351: V/EyeGestureService(197): Native call nativeIsEyeGestureDetectorRunning
12-19 16:33:09.351: I/GlassSystemServer(197): Broadcast of DonState doffed ending, executing onDone sequence.
12-19 16:33:09.367: V/HeadGestureManager(197): Removing listener: com.google.android.glass.server.SystemServerHub$2@417436b0 for head gesture: GLOBAL_LOOK_UP
12-19 16:33:09.367: V/HeadGestureManager(197): Removed listener: com.google.android.glass.server.SystemServerHub$2@417436b0 from gesture: GLOBAL_LOOK_UP
12-19 16:33:09.367: V/HeadGestureManager(197): Last listener for gesture: GLOBAL_LOOK_UP was removed. Unregistering with service.
12-19 16:33:09.367: V/HeadGestureService(197): Native call nativeIsGlobalLookUpDetectorRunning
12-19 16:33:09.367: V/HeadGestureService(197): Native call nativeIsGlobalLookUpGestureEnabled
12-19 16:33:09.367: V/HeadGestureService(197): Native call nativeIsGlobalLookUpGestureEnabled
12-19 16:33:09.367: V/HeadGestureService(197): Native call nativeEnableGlobalLookUpDetector
12-19 16:33:09.367: V/HeadGestureService(197): Removing a callback for gesture: GLOBAL_LOOK_UP
12-19 16:33:09.367: V/HeadGestureService(197): Invariant enforcement for gesture: GLOBAL_LOOK_UP found numCallbacks=0 and isRunning=true
12-19 16:33:09.367: V/HeadGestureService(197): Gesture: GLOBAL_LOOK_UP no longer requires a detector, so disconnecting the service listener...
12-19 16:33:09.367: V/HeadGestureService(197): Disconnecting the hardware listener for gesture: GLOBAL_LOOK_UP
12-19 16:33:09.367: V/HeadGestureService(197): Disabling the GLU detector ...
12-19 16:33:09.375: D/audio_hw_primary(109): select_output_device: output_type: 1, base_headset_volume: 1
12-19 16:33:09.382: I/Sensors(197): Calling abortWaitForLookupGesture
12-19 16:33:09.382: I/GlassGestureService::DMPManager(197): Calling MPLSensor::waitForLookupGesture()...
12-19 16:33:09.382: V/Sensors(197): Waiting for DMP gesture...
12-19 16:33:09.382: I/Sensors(197): done calling abortWaitForLookupGesture
12-19 16:33:09.382: I/HeadGestureService(197): handleDmpGestureDetected called with 0 at timestamp 1479823178
12-19 16:33:09.382: I/HeadGestureService(197): Detected GLOBAL_LOOK_UP gesture. Setting NUDGE inhibition timer.
12-19 16:33:09.382: V/HeadGestureService(197): GLOBAL_LOOK_UP service listener called but not enabled.
12-19 16:33:09.390: V/HeadGestureService(197): ...Success!
12-19 16:33:09.523: I/UserEventService(561): Logging user event: [action=DOFFED, data=|ohd_active=1|don_time_ms=30002|], performance stats: [GlassUserEventPerformanceStats < battery_charge_when_full_uah: 503000 battery_state_of_charge_uah: 498000 battery_temperature_milli_centigrade: 30000 board_temperature_milli_centigrade: 40970 frequency_scaling_governor: 1 frequencyStat < duration_ms: 8769750 frequency_hz: 300000 > frequencyStat < duration_ms: 437000 frequency_hz: 600000 > frequencyStat < duration_ms: 175890 frequency_hz: 800000 > frequencyStat < duration_ms: 28140 frequency_hz: 1008000 > reported_soc: 99 total_bytes_sent: 0 total_kernel_ms: 9410780>]
12-19 16:33:14.625: I/AlarmManager(197): AlarmManager wakeup [pkg=android, intent=Intent { act=android.content.syncmanager.SYNC_ALARM flg=0x14 (has extras) }].
12-19 16:33:17.656: D/dalvikvm(378): GC_CONCURRENT freed 401K, 7% free 9738K/10375K, paused 6ms+7ms
12-19 16:33:17.953: W/CheckinRequestBuilder(336): Unknown phone type: 0 id=null