ios – 为iPhone 5加载不同的故事板@ app start

我在AppDelegate.m中使用以下代码来检测用户正在使用的设备：

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

    if(UI_USER_INTERFACE_IdioM() == UIUserInterfaceIdiomPhone)
    {
        CGSize result = [[UIScreen mainScreen] bounds].size;
        if(result.height == 480)
        {
            NSLog(@"iPhone 3,5 Inch");

            [UIStoryboard storyboardWithName:@"MainStoryboard_iPhone" bundle:nil];



        }
        if(result.height == 568)
        {
            NSLog(@"iPhone 4 Inch");
            [UIStoryboard storyboardWithName:@"iPhone5-storyboard" bundle:nil];
        }
    }

    return YES;
}

但是当我构建应用程序时,会显示NSLog,但是没有Storyboard即将出现…

>部署信息中的主要故事板字段为空,以便代码决定要加载哪些内容…

有些可以帮我吗

Thx和来自德国的最好的问候

劳伦斯:)

解决方法

这是我现在在另一篇文章中发现的一种方式：

if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPhone)
    {    // The iOS device = iPhone or iPod Touch


        CGSize iOSDeviceScreenSize = [[UIScreen mainScreen] bounds].size;
        UIViewController *initialViewController = nil;
        if (iOSDeviceScreenSize.height == 480)
        {   // iPhone 3GS,4,and 4S and iPod Touch 3rd and 4th generation: 3.5 inch screen (diagonally measured)

            // Instantiate a new storyboard object using the storyboard file named Storyboard_iPhone35
            UIStoryboard *iPhone35Storyboard = [UIStoryboard storyboardWithName:@"Storyboard_iPhone35" bundle:nil];

            // Instantiate the initial view controller object from the storyboard
            initialViewController = [iPhone35Storyboard instantiateInitialViewController];
        }

        if (iOSDeviceScreenSize.height == 568)
        {   // iPhone 5 and iPod Touch 5th generation: 4 inch screen (diagonally measured)

            // Instantiate a new storyboard object using the storyboard file named Storyboard_iPhone4
            UIStoryboard *iPhone4Storyboard = [UIStoryboard storyboardWithName:@"Storyboard_iPhone4" bundle:nil];

            // Instantiate the initial view controller object from the storyboard
            initialViewController = [iPhone4Storyboard instantiateInitialViewController];
        }

        // Instantiate a UIWindow object and initialize it with the screen size of the iOS device
        self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

        // Set the initial view controller to be the root view controller of the window object
        self.window.rootViewController  = initialViewController;

        // Set the window object to be the key window and show it
        [self.window makeKeyAndVisible];

    } else if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad)

    {   // The iOS device = iPad

        UISplitViewController *splitViewController = (UISplitViewController *)self.window.rootViewController;
        UINavigationController *navigationController = [splitViewController.viewControllers lastObject];
        splitViewController.delegate = (id)navigationController.topViewController;

    }