1

デバイスを 100% 目覚めさせるより良い方法はありますか? acquire() を繰り返し呼び出していますが、それが正しいかどうかはわかりません。それとも、一度だけ acquire() を呼び出す必要がありますか? または、Intent.ACTION_SCREEN_OFF を使用する必要がありますか?

public class MyServiceThatKeepsTheDeviceAwake extends IntentService {   
TAG = "com.android.browser.test.launcher.BrowsePageService";
...
@Override
public void onCreate() {
    super.onCreate();
    mPowerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
    mWakeLock = mPowerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK |PowerManager.ACQUIRE_CAUSES_WAKEUP |PowerManager.ON_AFTER_RELEASE, TAG);
}

@Override
public void onStart(Intent intent, int startId) {
    super.onStart(intent, startId);
    mWakeLock.acquire();
}

// No release

*このサービスは、AlarmManager を使用して 20 秒ごとに実行されます

- -追加した：

*これにより、ffが得られます。繰り返し実行すると出力されます。これで何か問題がありますか？繰り返し呼び出すのに問題はありますか？

C:\Windows\System32>adb shell dumpsys power
Power Manager State:
mIsPowered=false mPowerState=3 mScreenOffTime=463571 ms
mPartialCount=9
mWakeLockState=SCREEN_BRIGHT_BIT SCREEN_ON_BIT
mUserState=
mPowerState=SCREEN_BRIGHT_BIT SCREEN_ON_BIT
mLocks.gather=SCREEN_BRIGHT_BIT SCREEN_ON_BIT
mNextTimeout=355968 now=463589 -107s from now
mDimScreen=true mStayOnConditions=0
mScreenOffReason=0 mUserState=0
mBroadcastQueue={-1,-1,-1}
mBroadcastWhy={0,0,0}
mPokey=0 mPokeAwakeonSet=false
mKeyboardVisible=false mUserActivityAllowed=true
mKeylightDelay=6000 mDimDelay=2000 mScreenOffDelay=7000
mPreventScreenOn=false  mScreenBrightnessOverride=-1  mButtonBrightnessOverride=-1
mScreenOffTimeoutSetting=15000 mMaximumScreenOffTimeout=2147483647
mLastScreenOnTime=19531
mBroadcastWakeLock=UnsynchronizedWakeLock(mFlags=0x1 mCount=0 mHeld=false)
mStayOnWhilePluggedInScreenDimLock=UnsynchronizedWakeLock(mFlags=0x6 mCount=0 mHeld=false)
mStayOnWhilePluggedInPartialLock=UnsynchronizedWakeLock(mFlags=0x1 mCount=0 mHeld=false)
mPreventScreenOnPartialLock=UnsynchronizedWakeLock(mFlags=0x1 mCount=0 mHeld=false)
mProximityPartialLock=UnsynchronizedWakeLock(mFlags=0x1 mCount=0 mHeld=false)
mProximityWakeLockCount=0
mProximitySensorEnabled=false
mProximitySensorActive=false
mProximityPendingValue=-1
mLastProximityEventTime=0
mLightSensorEnabled=true
mLightSensorValue=1219.0 mLightSensorPendingValue=1173.0
mLightSensorPendingDecrease=true mLightSensorPendingIncrease=false
mLightSensorScreenBrightness=122 mLightSensorButtonBrightness=0 mLightSensorKeyboardBrightness=0
mUseSoftwareAutoBrightness=true
mAutoBrightessEnabled=true
mScreenBrightness: animating=false targetValue=122 curValue=122.0 delta=0.45

mLocks.size=16:
FULL_WAKE_LOCK                 'com.android.browser.test.launcher.BrowsePageService'ACQUIRE_CAUSES_WAKEUP  activated (minState=3, uid=10040, pid=722)
FULL_WAKE_LOCK                 'com.android.browser.test.launcher.BrowsePageService'ACQUIRE_CAUSES_WAKEUP  activated (minState=3, uid=10040, pid=722)
FULL_WAKE_LOCK                 'com.android.browser.test.launcher.BrowsePageService'ACQUIRE_CAUSES_WAKEUP  activated (minState=3, uid=10040, pid=722)
FULL_WAKE_LOCK                 'com.android.browser.test.launcher.BrowsePageService'ACQUIRE_CAUSES_WAKEUP  activated (minState=3, uid=10040, pid=722)
FULL_WAKE_LOCK                 'com.android.browser.test.launcher.BrowsePageService'ACQUIRE_CAUSES_WAKEUP  activated (minState=3, uid=10040, pid=722)
FULL_WAKE_LOCK                 'com.android.browser.test.launcher.BrowsePageService'ACQUIRE_CAUSES_WAKEUP  activated (minState=3, uid=10040, pid=722)
FULL_WAKE_LOCK                 'com.android.browser.test.launcher.BrowsePageService'ACQUIRE_CAUSES_WAKEUP  activated (minState=3, uid=10040, pid=722)
PARTIAL_WAKE_LOCK              'WSBase.lastChance' activated (minState=0, uid=10007, pid=243)
PARTIAL_WAKE_LOCK              'WSBase.lastChance' activated (minState=0, uid=10007, pid=243)
PARTIAL_WAKE_LOCK              'WSBase.lastChance' activated (minState=0, uid=10007, pid=243)
PARTIAL_WAKE_LOCK              'WSBase.lastChance' activated (minState=0, uid=10007, pid=243)
PARTIAL_WAKE_LOCK              'WSBase.lastChance' activated (minState=0, uid=10007, pid=243)
PARTIAL_WAKE_LOCK              'WSBase.lastChance' activated (minState=0, uid=10007, pid=243)
PARTIAL_WAKE_LOCK              'WSBase.lastChance' activated (minState=0, uid=10007, pid=243)
PARTIAL_WAKE_LOCK              'WSBase.lastChance' activated (minState=0, uid=10007, pid=243)
PARTIAL_WAKE_LOCK              'WSBase' activated (minState=0, uid=10007, pid=243)

mPokeLocks.size=0:
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1 に答える 1

1

繰り返し呼び出す必要はありませんacquire()。 onCreate() でロックを取得するだけです。 release() を呼び出さないまで動作します。アクティビティの onDestroy() で release() を呼び出すだけで、バッテリーを消費するタスクになります。

詳細については、画面のウェイクアップに関するこの詳細な説明を参照してください。

于 2012-03-26T06:15:48.643 に答える