NSClassFromString在OC中运行良好，但在Swift

Question

在OC中工作正常：

NSString *controllerName = @"SecondViewController";
Class clazz = NSClassFromString(controllerName);
UIViewController *viewController = [[clazz alloc] init];
[self.navigationController pushViewController:viewController animated:YES];

当我使用swift时：

let controllerName = "SecondViewController"
let controller:AnyClass = NSClassFromString(controllerName)!
let viewController = (controller as! UIViewController.Type).init()
navigationController?.pushViewController(viewController, animated: true)

它在let controller:AnyClass = NSClassFromString(controllerName)!

坠毁

有什么想法吗？

Answer 1

Swift类现在是命名空间，而不是＆＃34; SecondViewController＆＃34;它＆＃34; AppName.SecondViewController＆＃34;

    let nameSpace = NSBundle.mainBundle().infoDictionary!["CFBundleExecutable"] as! String
    let controllerName = "SecondViewController"
    let controller:AnyClass = NSClassFromString(nameSpace + "." + controllerName)!
    let viewController = (controller as! UIViewController.Type).init()
    navigationController?.pushViewController(viewController, animated: true)