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Swift 语法 - Swift通过类名实例化对象

根据类名来实例化对象,比如,要根据一个类名的字符串创建ViewController实例。

let controllerName="SpainAppProto."+xibName  // xibName 形如 XXViewControllervar classType: AnyObject.Type=NSClassFromString(controllerName)var nsobjectype : UIViewController.Type = classType as UIViewController.Typevar viewController: UIViewController = nsobjectype(nibName: xibName, bundle: nil) 

 

但是 在根据 UIViewController.self 来实例化的时候就要稍微转化下

    var x: String = m.debugDescription  // m为 UIViewController.self    x = x.stringByReplacingOccurrencesOfString("Optional(", withString: "")    x = x.stringByReplacingOccurrencesOfString(")", withString: "")    let anyClass: AnyClass = NSClassFromString(x)    let viewControllerClass: UIViewController.Type = anyClass as UIViewController.Type    let viewController = viewControllerClass()

 

Swift 语法 - Swift通过类名实例化对象