Android 屏幕亮度调节(2.0以后出现亮度自动调节)如何开启、关闭亮度自动调节

/**
     * 判断是否开启了自动亮度调节
*/
public static boolean isAutoBrightness(ContentResolver aContentResolver) {
        boolean automicBrightness = false;
        try {
            automicBrightness = Settings.System.getInt(aContentResolver,
                    Settings.System.SCREEN_BRIGHTNESS_MODE) == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC;
        } catch (SettingNotFoundException e) {
            e.printStackTrace();
        }
        return automicBrightness;
    }

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/**
 * 停止自动亮度调节
 */
public static void stopAutoBrightness(Activity activity) {
    Settings.System.putInt(activity.getContentResolver(),
            Settings.System.SCREEN_BRIGHTNESS_MODE,
            Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL);
}

/**
 * 开启亮度自动调节
 * 
 * @param activity
 */
public static void startAutoBrightness(Activity activity) {
    Settings.System.putInt(activity.getContentResolver(),
            Settings.System.SCREEN_BRIGHTNESS_MODE,
            Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC);
}

/**
 * 保存亮度设置状态
 */
public static void saveBrightness(ContentResolver resolver, int brightness) {
    Uri uri = android.provider.Settings.System
            .getUriFor("screen_brightness");
    android.provider.Settings.System.putInt(resolver, "screen_brightness",
            brightness);
    // resolver.registerContentObserver(uri, true, myContentObserver);
    resolver.notifyChange(uri, null);
}

 

原文作者: 木易日尧氵皮

原文地址: http://my.eoe.cn/1116476/archive/21785.html

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