android禁止屏幕休眠

//初始化PowerManager和Wakelock对象

<span style="white-space:pre">	</span>PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
<span style="white-space:pre">	</span>Wakelock<span style="font-family:Arial, Helvetica, sans-serif;"> </span>wakeLock = pm.newWakeLock(PowerManager.WakeLock SCREEN_DIM_WAKE_LOCK,"My Tag");

//<span style="font-family: Arial, Helvetica, sans-serif;">锁定屏幕不休眠时</span>

<span style="font-family: Arial, Helvetica, sans-serif;"></span><pre name="code" class="html"><span style="white-space:pre">	</span>wakeLock.acquire();

<span style="font-family: Arial, Helvetica, sans-serif;"><span style="white-space:pre">		</span></span><span style="font-family: Arial, Helvetica, sans-serif;">w</span><span style="font-family: Arial, Helvetica, sans-serif;">akeLock.release();</span>