android之电源锁

需要启动seriver时获取电源锁，退出时释放。

代码如下：

//申请设备电源锁

private void acquireWakeLock()

{

if (null == mWakeLock)

{

PowerManager pm = (PowerManager)this.getSystemService(Context.POWER_SERVICE);

mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK|PowerManager.ON_AFTER_RELEASE,"");

if (null != mWakeLock)

{

mWakeLock.acquire();

}

}

}

//释放设备电源锁

private void releaseWakeLock()

{

if (null != mWakeLock)

{

mWakeLock.release();

mWakeLock = null;

}

}