1.距离感应器用到的电源锁
//距离感应器的电源锁
WakeLock wakeLock = powerManager.newWakeLock(32, "wakeLock");
2.线控耳机插入时，控制屏幕亮或熄灭的电源锁
WakeLock wakeLock = powerManager.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP || PowerManager.SCREEN_DIM_WAKE_LOCK, "wakeLock");
3.如设置屏幕2分后锁屏
WakeLock wakeLock = powerManager.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "wakeLock");
wakeLock.acquire(2*60*1000);
4，设备电源锁的两个方法
/**
* 获取电源锁，保持该服务在屏幕熄灭时仍然获取CPU时，保持运行
*/
private void acquireWakeLock() {
if (null == wakeLock) {
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK
| PowerManager.ON_AFTER_RELEASE, getClass()
.getCanonicalName());
if (null != wakeLock) {
Log.i("ysl", "call acquireWakeLock");
wakeLock.acquire();
}
}
}
/** 释放设备电源锁*/
private void releaseWakeLock() {
if (null != wakeLock && wakeLock.isHeld()) {
Log.i("ysl", "call releaseWakeLock");
wakeLock.release();
wakeLock = null;
}
}
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