iPhone 5的屏幕適應

Question

我使用此代碼來適應我的故事板根據設備（iPhone 5或更少）：

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"iphone5 storyboard" bundle:[NSBundle mainBundle]]; 

：

if([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){ 
    if(UIScreenOverscanCompensationScale==1136/640){ 
     //move to your iphone5 storyboard 
     UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"iphone5 storyboard" bundle:[NSBundle mainBundle]]; 
    } 
    else{ 
     //move to your iphone4s storyboard 
     UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard_iPhone" bundle:[NSBundle mainBundle]]; 
    }} 

的代碼不能使用，即使我只是工作的地方

...它仍然加載iPhone正常。

我把它放在：

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

在應用程序委託。這是正確的嗎？？在應用設置中，我選擇故事情節

Answer 1

我設法解決它通過這種方式：

if([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){ 
    if([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone && [UIScreen mainScreen].bounds.size.height == 568.0){ 
     //move to your iphone5 storyboard 
     UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"iphone5 storyboard" bundle:[NSBundle mainBundle]]; 
     UIViewController *vc =[storyboard instantiateInitialViewController]; 

     // Set root view controller and make windows visible 
     self.window.rootViewController = vc; 
     [self.window makeKeyAndVisible]; 
    } 
    else{ 
     //move to your iphone4s storyboard 
     UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard_iPhone" bundle:[NSBundle mainBundle]]; 
     UIViewController *vc =[storyboard instantiateInitialViewController]; 

     // Set root view controller and make windows visible 
     self.window.rootViewController = vc; 
     [self.window makeKeyAndVisible]; 
    }} 

Answer 2

原來iphone的問題是：

UIScreenOverscanCompensationScale==1136/640 

永遠不會爲真。

檢查UIScreenOverscanCompensationScale正在做什麼並返回一個BOOL。

Answer 3

是否MainStoryboard仍在目標摘要下指定？我相信這將是應用程序首先看的地方。