Android实现保持屏幕常亮功能

  /**
   * 打开休眠锁只能保持手机不休眠
   * @param context
   */
  @Deprecated
  public static void openWakeLock(Context context) {
    PowerManager powerManager = (PowerManager) context.getSystemService(Service.POWER_SERVICE);
    PowerManager.WakeLock wakeLock = powerManager.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "My Lock");
    //是否需计算锁的数量
    wakeLock.setReferenceCounted(false);
    //请求常亮，onResume()
    wakeLock.acquire();
  }

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

Window window = activity.getWindow();
    window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

 window.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

 /**
   * 是否使屏幕常亮
   *
   * @param activity
   */
  public static void keepScreenLongLight(Activity activity) {
    boolean isOpenLight = CommSharedUtil.getInstance(activity).getBoolean(CommSharedUtil.FLAG_IS_OPEN_LONG_LIGHT, true);
    Window window = activity.getWindow();
    if (isOpenLight) {
      window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
    } else {
      window.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
    }

  }

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    LongLightUtils.keepScreenLongLight(this);
  }

public class BaseActivity extends AppCompatActivity {

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    LongLightUtils.keepScreenLongLight(this);
  }
}

public class MyApplication extends Application{
  @Override
  public void onCreate() {
    super.onCreate();
    registerActivityLifecycleCallbacks(new ActivityLifecycleCallbacks() {
      @Override
      public void onActivityCreated(Activity activity, Bundle bundle) {

      }

      @Override
      public void onActivityStarted(Activity activity) {

      }

      @Override
      public void onActivityResumed(Activity activity) {
        LongLightUtils.keepScreenLongLight(activity);
      }

      @Override
      public void onActivityPaused(Activity activity) {

      }

      @Override
      public void onActivityStopped(Activity activity) {

      }

      @Override
      public void onActivitySaveInstanceState(Activity activity, Bundle bundle) {

      }

      @Override
      public void onActivityDestroyed(Activity activity) {

      }
    });
  }
}