xcode 为 iPhone 5 加载不同的 Storyboard @ app start
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时间：2020-09-15 01:57:19 来源:igfitidea点击:
Load different Storyboard for iPhone 5 @ app start
提问by Laurenz Glück
I am using the following code in my AppDelegate.mto detect which device the user is using:
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;
}
But when I build the App the NSLog is shown, but no Storyboard is coming up...
但是当我构建应用程序时，会显示 NSLog，但没有出现故事板......
- The Main Storyboard field in the Deployment info is empty so that the code decided what to load...
- 部署信息中的主故事板字段为空，以便代码决定加载什么......
Can you help me?
你能帮助我吗？
回答by Laurenz Glück
Here is a way I now found on a other post:
这是我现在在另一篇文章中找到的一种方法：
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;
}
