摘要：最近做一个项目，需要用到UIPanGestureRecognizer做一个侧滑菜单，需求是不能向右侧拖动(点击按钮右滑)，但可以向左侧手势拖动收回；于是需要判断拖动的方向，百度了一下，网上大部分的答案是这样判断的： CGPoint translation = [recognizer translat 阅读全文

摘要：View controllers are often the biggest files in iOS projects, and they often contain way more code than necessary. Almost always, view controllers are 阅读全文