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  • android 设置系统屏幕亮度

      /**
         * 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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  • 原文地址:https://www.cnblogs.com/niray/p/4469376.html
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