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 = [[UIWindowalloc] initWithFrame:[[UIScreenmainScreen] bounds]];

    self.window.backgroundColor = [UIColorwhiteColor];

    

    

    //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=[UIStoryboardstoryboardWithName:@"testStoryboard"bundle:nil];

    self.window.rootViewController=[storyinstantiateInitialViewController];

  

    

       //显示窗口

    [self.windowmakeKeyAndVisible];

    return YES;

}