iOS开发--纯代码布局

• 纯代码布局,初始化

  1.删除Main.storybook

  2.删除Targets->Deployment Info->Main Interface->Main

  3.在AppDelegate.m文件中添加代码:

  • 1.必须导入头文件#import "ViewController.h"

  • 2.初始化UIWindow

  - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
      
      self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
      self.window.rootViewController = [[ViewController alloc] init];
      self.window.backgroundColor = [UIColor whiteColor];
      [self.window makeKeyAndVisible];
      return YES;
  }