android - PowerManager.newWakeLock() 抛出 IlleagelArgumentException

Question

我正在尝试获取唤醒锁，但是当我调用 PowerManager.newWakeLock() 时，我收到 IlleglArgumentException。

这是我用来获取的代码

private void setWakeLock(Context context)
{
    PowerManager pm = (PowerManager) context
    .getSystemService(Context.POWER_SERVICE);
    SoundAlarmActivity.WakeLock = pm.newWakeLock(
    PowerManager.ACQUIRE_CAUSES_WAKEUP
            | PowerManager.ON_AFTER_RELEASE, "Alarm");
    SoundAlarmActivity.WakeLock.acquire();
}

这是 logcat:

09-28 12:53:09.704: ERROR/AndroidRuntime(702): java.lang.IllegalArgumentException
09-28 12:53:09.704: ERROR/AndroidRuntime(702):     at android.os.PowerManager$WakeLock.<init>(PowerManager.java:223)
09-28 12:53:09.704: ERROR/AndroidRuntime(702):     at android.os.PowerManager.newWakeLock(PowerManager.java:365)

Answer 1

试试这个:

private void setWakeLock(Context context)
{
    PowerManager pm = (PowerManager) context
    .getSystemService(Context.POWER_SERVICE);
    SoundAlarmActivity.WakeLock = pm.newWakeLock(
    PowerManager.FULL_WAKE_LOCK |
        PowerManager.ACQUIRE_CAUSES_WAKEUP
            | PowerManager.ON_AFTER_RELEASE, "BusSnoozeAlarm");
    SoundAlarmActivity.WakeLock.acquire();
}

PowerManager.ACQUIRE_CAUSES_WAKEUP 不适用于部分唤醒锁，因此您必须确保在定义所需的唤醒锁类型时使用的是 FULL_WAKE_LOCK。