Android 手机保持屏幕高亮，android高亮,首先,在Activity

Android 手机保持屏幕高亮，android高亮,首先,在Activity

首先,在Activity里添加一下代码：

成员变量：private PowerManager.WakeLock wakeLock = null; 重写父类Activity的两个方法并添加一下逻辑：@Override      public void onResume() {        super.onResume();            acquireWakeLock(this);      }      @Override      public void onPause() {          super.onPause();          releaseWakeLock();      }      public void acquireWakeLock(Context context) {          if (wakeLock == null) {              PowerManager powerManager = (PowerManager) (context                      .getSystemService(Context.POWER_SERVICE));              wakeLock = powerManager.newWakeLock(                      PowerManager.SCREEN_DIM_WAKE_LOCK, "My Tag");              wakeLock.acquire();          }      }      public void releaseWakeLock() {          if (wakeLock != null && wakeLock.isHeld()) {              wakeLock.release();              wakeLock = null;          }      }

然后，在AndroidManifest.xml里添加如下权限即可：

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