IOS去除storyboard,纯代码开发(含swift)

对于多数 iOS 开发者而言还是更喜欢纯代码开发。然而我们每次创建一个新的项目的时候,项目工程中都会自带一个 storyboard。要去除这个默认 storyboard 进行纯代码开发也并非难事，只要做以下几个步骤。

1.删除项目设置中的 Main interface

2.删除目录文件中的 Main.storyboard

3.在AppDelegate 中添加项目的 window 并添加所需的 viewController

[Objective-C]
//记得要引入对应的 viewController 头文件哟！
- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {
  // Override point for customization after application launch.
  self.window= [[UIWindow alloc] initWithFrame:[UIScreen  mainScreen].bounds];
  // show root controller.
  self.window.rootViewController= [[ViewController alloc] init];
  [self.window makeKeyAndVisible];
  return YES;
}

[Swift]
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {       
   // Override point for customization after application launch.        
  window = UIWindow(frame: UIScreen.main.bounds)         
  window?.rootViewController = ViewController()         
  window?.backgroundColor = UIColor.white        
  window?.makeKeyAndVisible()        
   return true    
 }

4.运行APP

运行app 之前最好能先清理生成文件夹，不让可能会出现运行失败的情况。清理生成文件夹的快捷键是 Shift+Command+Alt+K.