学步园

bool HelloWorld::init()
{
    if ( !Layer::init() )
    {
        return false;
    }
    
    Size visibleSize = Director::getInstance()->getVisibleSize();
    Vec2 origin = Director::getInstance()->getVisibleOrigin();

	TextFieldTTF * tf = TextFieldTTF::textFieldWithPlaceHolder("在此输入内容", "宋体", 35);
	tf->setPosition(Vec2(visibleSize.width / 2, visibleSize.height / 2));

	addChild(tf);

	auto * lis = EventListenerTouchOneByOne::create();									//create the touch event listener (onebyone)


	lis->onTouchBegan = [tf](Touch *t,Event *e)
	{
		if (tf->getBoundingBox().containsPoint(t->getLocation()))
		{
			tf->attachWithIME();
		}
		else
		{
			tf->detachWithIME();
		}
		return false;
	};

	Director::getInstance()->getEventDispatcher()->
		addEventListenerWithSceneGraphPriority(lis, tf);

    return true;
}