通过storyboard加载视图6（4）

1，添加一个storyboard

2，

3，

#import "AppDelegate.h"

#import "MainViewController.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    // Override point for customization after application launch.

    

    //0，创建窗口

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    self.window.backgroundColor = [UIColor whiteColor];

    

    

    //3，通过storyboard加载视图（优先级2）

//      //添加一个storyboard，设置属性is initial view Controller

    UIStoryboard *story=[UIStoryboard storyboardWithName:@"testStoryboard" bundle:nil];

    self.window.rootViewController=[story instantiateInitialViewController];

  

    

        //显示窗口

    [self.window makeKeyAndVisible];

    return YES;

}