iPhone 5屏幕适配器

Question

我使用以下代码根据设备(iPhone5或更低版本)调整我的故事板：

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]];
    }}

代码不能工作，即使我只是放置：

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

...it仍然可以正常加载iphone。

我把它放在下面：

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

在应用委派中。这样对吗？？在应用程序设置中，我选择了原始的iphone故事板

Answer 1

我设法用这种方式解决了这个问题：

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

问题是：

UIScreenOverscanCompensationScale==1136/640

永远不会是真的。

检查UIScreenOverscanCompensationScale正在做什么，并返回BOOL。

Answer 3

是否仍在目标摘要下指定MainStoryboard？我相信这将是应用程序首先看起来的地方。