Android(安卓)WakeLock

在Android中,申请WakeLock可以让你的进程持续执行即使手机进入睡眠模式,

比较实用的是比如:

后台有网络功能,可以保证操作持续进行.

方法: 在操作之前加入

PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, Constants.TAG);
wakeLock.acquire();

别忘了在操作完毕之后释放掉

if (wakeLock != null) {
wakeLock.release();
wakeLock = null;
}

例子:

public void setWakeMode(Context context, int mode) {
boolean washeld = false;
if (mWakeLock != null) {
if (mWakeLock.isHeld()) {
washeld = true;
mWakeLock.release();
}
mWakeLock = null;
}

PowerManager pm = (PowerManager) context
.getSystemService(Context.POWER_SERVICE);
mWakeLock = pm.newWakeLock(mode | PowerManager.ON_AFTER_RELEASE,
CloudGamePlayer.class.getName());
mWakeLock.setReferenceCounted(false);
if (washeld) {
mWakeLock.acquire();
}
}

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/to_cm/archive/2010/08/01/5780773.aspx

更多相关文章

随机推荐