android屏幕亮度调整

android屏幕亮度调整  

/**   * 获得当前屏幕亮度的模式  *  SCREEN_BRIGHTNESS_MODE_AUTOMATIC=1 为自动调节屏幕亮度 *  SCREEN_BRIGHTNESS_MODE_MANUAL=0  为手动调节屏幕亮度 */private int getScreenMode(){      int screenMode=0;      try{       screenMode = Settings.System.getInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS_MODE);}catch (Exception localException){}return screenMode;}/**    * 获得当前屏幕亮度值  0--255 */    private int getScreenBrightness(){      int screenBrightness=255;      try{       screenBrightness = Settings.System.getInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS);}catch (Exception localException){}return screenBrightness;}/** * 设置当前屏幕亮度的模式 * SCREEN_BRIGHTNESS_MODE_AUTOMATIC=1 为自动调节屏幕亮度 * SCREEN_BRIGHTNESS_MODE_MANUAL=0  为手动调节屏幕亮度  */    private void setScreenMode(int paramInt){      try{Settings.System.putInt(getContentResolver(),Settings.System.SCREEN_BRIGHTNESS_MODE, paramInt);}catch (Exception localException){localException.printStackTrace();}}    /** * 设置当前屏幕亮度值  0--255 */    private void saveScreenBrightness(int paramInt){      try{        Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS,paramInt);      }catch (Exception localException){        localException.printStackTrace();      }    }/** * 保存当前的屏幕亮度值，并使之生效 */    private void setScreenBrightness(int paramInt){      Window localWindow = getWindow();      WindowManager.LayoutParams localLayoutParams = localWindow.getAttributes();      float f = paramInt / 255.0F;      localLayoutParams.screenBrightness = f;      localWindow.setAttributes(localLayoutParams);    }