UserDefault *defaults = UserDefault::getInstance();数据持久性

void Setting::menuSoundToggleCallback(Ref* pSender)
{
	auto soundToggleMenuItem = (MenuItemToggle*)pSender;
	log("soundToggleMenuItem %d", soundToggleMenuItem->getSelectedIndex());

	UserDefault *defaults  = UserDefault::getInstance();
	if (defaults->getBoolForKey(SOUND_KEY)) {
		defaults->setBoolForKey(SOUND_KEY, false);
	} else {
		defaults->setBoolForKey(SOUND_KEY, true);
		SimpleAudioEngine::getInstance()->playEffect("sound/Blip.wav");
	}

}


void Setting::menuMusicToggleCallback(Ref* pSender)
{
	auto musicToggleMenuItem = (MenuItemToggle*)pSender;
	log("musicToggleMenuItem %d", musicToggleMenuItem->getSelectedIndex());

	UserDefault *defaults  = UserDefault::getInstance();
	if (defaults->getBoolForKey(MUSIC_KEY)) {
		defaults->setBoolForKey(MUSIC_KEY, false);
		SimpleAudioEngine::getInstance()->stopBackgroundMusic();
	} else {
		defaults->setBoolForKey(MUSIC_KEY, true);
		SimpleAudioEngine::getInstance()->playBackgroundMusic("sound/Synth.mp3");
	}
}