About quot;Declaration is only valid at file scopequot;(关于“声明仅在文件范围内有效)

Several UIAlertViews for a delegate(代表的几个 UIAlertViews)

Observing Changes to a mutable array using KVO vs. NSNotificationCenter(使用 KVO 与 NSNotificationCenter 观察对可变数组的更改)

Delegates, can#39;t get my head around them(代表们，我无法理解他们)

Cannot assign a value of type ViewController to a value of type UITextFieldDelegate?(无法将 ViewController 类型的值分配给 UITextFieldDelegate 类型的值?)

Trying to understand protocol/delegates in Swift(试图理解 Swift 中的协议/委托)

NSURLConnection doesn#39;t call delegate methods(NSURLConnection 不调用委托方法)

Passing data between 2 UIViewController using delegate and protocol(使用委托和协议在 2 个 UIViewController 之间传递数据)

Set delegates to nil under ARC?(在 ARC 下将代表设置为零?)

how to set a tableview delegate(如何设置表格视图委托)

Get current view controller from the app delegate (modal is possible)(从应用程序委托获取当前视图控制器(模式是可能的))

property quot;assignquot; and quot;retainquot; for delegate(属性“分配；和“保留代表)

iOS - Position UIView in center of superview using Auto Layout programmatically(iOS - 以编程方式使用自动布局将 UIView 定位在超级视图的中心)

UILabel Text Not Wrapping(UILabel 文本不换行)

Disable Autolayout Localization Behavior (RTL - Right To Left Behavior )(禁用自动布局本地化行为(RTL - 从右到左行为))

How to increase width of textfield according to typed text?(如何根据键入的文本增加文本字段的宽度?)

iOS Autolayout - Frame size not set in viewDidLayoutSubviews(iOS Autolayout - viewDidLayoutSubviews 中未设置帧大小)

Autolayout ignores multi-line detailTextLabel when calculating UITableViewCell height (all styles)(自动布局在计算 UITableViewCell 高度时忽略多行 detailTextLabel(所有样式))

AutoLayout: UIView within UIView has incorrect frame(自动布局:UIView 中的 UIView 有不正确的框架)

Position a subview on the edge of a circular shaped view(将子视图定位在圆形视图的边缘)