我怎样才能快速获得 rightbarbuttonItem 的框架?我发现这个:UIBarButtonItem: How can I find its frame?但它说不能将 NSString 转换为 UIView,或者不能将 NSString 转换为 String:
let str : NSString = "view" //or type String
let theView : UIView = self.navigationItem.rightBarButtonItem!.valueForKey("view")//or 'str'
目标是删除 rightBarButtonItem,添加一个 imageView,并使用淡出效果移动它。
谢谢
最佳答案
你应该这样尝试:
var barButtonItem = self.navigationItem.rightBarButtonItem!
var buttonItemView = barButtonItem.valueForKey("view")
var buttonItemSize = buttonItemView?.size
编辑(Swift 3):
var barButtonItem = self.navigationItem.rightBarButtonItem!
let buttonItemView = barButtonItem.value(forKey: "view") as? UIView
var buttonItemSize = buttonItemView?.size
关于ios - 在 Swift 中获取 UIBarButtonItem 的框架?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28991100/