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android屏幕亮度

2024-07-06 11:53:29   229人阅读

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/**
     * 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);
      }
       
    

　　


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