android 亮屏 激活自动亮度调节,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...

/**

* 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);

}