android-service

1. 唤醒锁

WakeLock类，归PowerManager管理。对于阅读和视频类软件，在onresume()里获取屏幕锁，在onstop()里释放屏幕锁。

获取唤醒锁

private WakeLock wakeLock;

if (wakeLock == null) {
<span style="white-space:pre">	</span>PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
<span style="white-space:pre">	</span>wakeLock = powerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK, this.getClass().getCanonicalName());
<span style="white-space:pre">	</span>wakeLock.acquire();

<span style="font-family: Arial, Helvetica, sans-serif;">}</span>

释放

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

需要权限

  <uses-permission android:name="android.permission.WAKE_LOCK"/>