通用iOS 6应用程序的程序化故事板

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This fine question and answer与我同时拥有iPhone和iPad xib并且现在想要使用故事板的Universal应用程序不太匹配。

这是基于xib的BSAppDelegate.m（在故事板之前）

    #import "BSAppDelegate.h"
    #import "BSViewController.h"

    @implementation BSAppDelegate

    NSString *receivedData;

    - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
    {
        // Override point for customization after application launch.
        // return YES;
        self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
        // Override point for customization after application launch.
        if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
            self.viewController = [[BSViewController alloc] initWithNibName:@"BSViewController_iPhone" bundle:nil];
        } else {        
            self.viewController = [[BSViewController alloc] initWithNibName:@"BSViewController_iPad" bundle:nil];
    }
        self.window.rootViewController = self.viewController;   
        [self.window makeKeyAndVisible];
        return YES;
    }

我尝试在上面的else之后插入以下代码，但我无法完成需要设置self.viewController以与上述代码兼容的代码修复。

UIStoryboard *sb = [UIStoryboard storyboardWithName:@"MainStoryboard_iPad" bundle:nil];
UIViewController *vc = [sb instantiateViewControllerWithIdentifier:@"BSViewController"];
vc.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentViewController:vc animated:YES completion:NULL];

您能告诉我如何修复我的代码吗？我正在使用Xcode 4.5.2并为iOS 6开发。

Answer 1

两个问题：

1. 只需将self.ViewController设置为从故事板中获取的vc：）

       #import "BSAppDelegate.h"
   #import "BSViewController.h"
   
   @implementation BSAppDelegate
   
   NSString *receivedData;
   
   - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
   {
       // Override point for customization after application launch.
       // return YES;
       self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
       // Override point for customization after application launch.
       if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
           self.viewController = [[BSViewController alloc] initWithNibName:@"BSViewController_iPhone" bundle:nil];
       } else {        
           UIStoryboard *sb = [UIStoryboard storyboardWithName:@"MainStoryboard_iPad" bundle:nil];
           UIViewController *vc = [sb instantiateViewControllerWithIdentifier:@"BSViewController"];
           vc.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
           self.viewController = (id)vc;
       }
       self.window.rootViewController = self.viewController;   
       [self.window makeKeyAndVisible];
       return YES;
   }   
   

在故事板中

2. ，您没有设置名为“BSViewController”的标识符，因此调用instantiateViewControllerWithIdentifier将失败。设置屏幕截图中可见的标识符（又名故事板ID）