Scale9Sprite ->setState (State::GRAY)
Scale9Sprite ->initWithFile(“xxx.png”)
Scale9Sprite ->setState (State::GRAY) – 无效
_brightState 在调用initWithFile的时候没重, setState里面的判断 将置灰跳过去了
当然也可以先调用一次setState (State::NORMAL), 然后在设置成其他的, 就可以避免判断里面的跳过
Scale9Sprite ->setState (State::NORMAL)
Scale9Sprite ->setState (State::GRAY)