android-将系统和应用程序级的屏幕亮度

清疚 2022-04-10 10:11 196阅读 0赞

/**
    	 * 获取当前屏幕亮度模式    
    	 * SCREEN_BRIGHTNESS_MODE_AUTOMATIC=1 为自己主动调节屏幕亮度
    	 * 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 为自己主动调节屏幕亮度
    	 * 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();
    	    }
    	  }
    	  /**
    	   * 设置系统级屏幕亮度值  0-255
    <span style="white-space:pre">	</span>   * 
    	   */
    	  private void saveScreenBrightness(int paramInt){
    	    try{
    	      Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, paramInt);
    	    }
    	    catch (Exception localException){
    	      localException.printStackTrace();
    	    }
    	  }
    	  /**
    	   * 设置当前的屏幕亮度值，及时生效 0-255
    <span style="white-space:pre">	</span>   * 该方法仅对当前应用屏幕亮度生效
    	   */
    	  private void setScreenBrightness(int paramInt){
    	    Window localWindow = getWindow();
    	    WindowManager.LayoutParams localLayoutParams = localWindow.getAttributes();
    	    float f = paramInt / 255.0F;
    	    localLayoutParams.screenBrightness = f;
    	    localWindow.setAttributes(localLayoutParams);
    	  }