开发者

Usage of sendAction:to:from:forEvent:?

-[UIApplication sendAction:to:from:forEvent:] method looks in开发者_开发知识库teresting. Is there any usage utilizes this method greatly?


Read up on the "responder chain" pattern in Cocoa. Calling this method (with nil for the to: parameter) is how iOS apps post actions to that chain.

0

上一篇:

下一篇:

精彩评论

暂无评论...
验证码 换一张
取 消

最新问答

问答排行榜