[英]Different StoryBoard for each screen size swift
How do I set Different Storyboards for each possible screen size in Swift? 如何在Swift中为每种可能的屏幕尺寸设置不同的Storyboard?
I already have the Objective-C code. 我已经有了Objective-C代码。
Please, no Auto Layout, I don't need it. 拜托,没有自动版面配置,我不需要。
But how do I convert it to Swift? 但是如何将其转换为Swift? I am new to Swift.
我是Swift的新手。
Here is code for Objective-C: 这是Objective-C的代码:
AppDelgate.m file AppDelgate.m文件
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
// int screenHeight = [UIScreen mainScreen].bounds.size.height;
// NSLog(@"Screen Height is %i", screenHeight);
// grab correct storyboard depending on screen height
UIStoryboard *storyboard = [self grabStoryboard];
// display storyboard
self.window.rootViewController = [storyboard instantiateInitialViewController];
[self.window makeKeyAndVisible];
return YES;
}
- (UIStoryboard *)grabStoryboard {
// determine screen size
int screenHeight = [UIScreen mainScreen].bounds.size.height;
UIStoryboard *storyboard;
switch (screenHeight) {
// iPhone 4s
case 480:
storyboard = [UIStoryboard storyboardWithName:@"Main-4s" bundle:nil];
break;
// iPhone 5s
case 568:
storyboard = [UIStoryboard storyboardWithName:@"Main-5s" bundle:nil];
break;
// iPhone 6
case 667:
storyboard = [UIStoryboard storyboardWithName:@"Main-6" bundle:nil];
break;
// iPhone 6 Plus
case 736:
storyboard = [UIStoryboard storyboardWithName:@"Main-6-Plus" bundle:nil];
break;
default:
// it's an iPad
storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
break;
}
return storyboard;
}
If you just want to convert the code to the Swift you could reference the swift tutorial from Apple. 如果您只想将代码转换为Swift,则可以参考Apple的swift教程。 You can check the book in the iBook Store or on the web.
您可以在iBook商店或网络上查看这本书。 For your reference I converted the code into the Swift.
供您参考,我将代码转换为Swift。
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.
let splitViewController = self.window!.rootViewController as! UISplitViewController
let navigationController = splitViewController.viewControllers[splitViewController.viewControllers.count-1] as! UINavigationController
navigationController.topViewController!.navigationItem.leftBarButtonItem = splitViewController.displayModeButtonItem()
splitViewController.delegate = self
return true
// int screenHeight = [UIScreen mainScreen].bounds.size.height;
// NSLog(@"Screen Height is %i", screenHeight);
// grab correct storyboard depending on screen height
let storyboard = grabStoryboard()
// display storyboard
self.window?.rootViewController = storyboard.instantiateInitialViewController()
self.window?.makeKeyAndVisible()
return true
}
func grabStoryboard() -> UIStoryboard
{
// determine screen size
let screenHeight = UIScreen.mainScreen().bounds.size.height
var storyboard: UIStoryboard! = nil
switch (screenHeight)
{
// iPhone 4s
case 480:
storyboard = UIStoryboard(name: "Main-4s", bundle: nil)
// iPhone 5s
case 568:
storyboard = UIStoryboard(name: "Main-5s", bundle: nil)
// iPhone 6
case 667:
storyboard = UIStoryboard(name: "Main-6", bundle: nil)
// iPhone 6 Plus
case 736:
storyboard = UIStoryboard(name: "Main-6-Plus", bundle: nil)
default:
// it's an iPad
storyboard = UIStoryboard(name: "Main", bundle: nil)
}
return storyboard
}
Load different storyboard as per screen size: 根据屏幕大小加载不同的故事板:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject : AnyObject]?) -> Bool {
// Override point for customization after application launch.
// int screenHeight = [UIScreen mainScreen].bounds.size.height;
// NSLog(@"Screen Height is %i", screenHeight);
// grab correct storyboard depending on screen height
var storyboard: UIStoryboard = self.grabStoryboard()
// display storyboard
self.window.rootViewController = storyboard.instantiateInitialViewController()
self.window.makeKeyAndVisible()
return true
}
func grabStoryboard() -> UIStoryboard {
// determine screen size
var screenHeight: Int = UIScreen.mainScreen().bounds.size.height
var storyboard: UIStoryboard
switch screenHeight {
// iPhone 4s
case 480:
storyboard = UIStoryboard.storyboardWithName("Main-4s", bundle: nil)
// iPhone 5s
case 568:
storyboard = UIStoryboard.storyboardWithName("Main-5s", bundle: nil)
// iPhone 6
case 667:
storyboard = UIStoryboard.storyboardWithName("Main-6", bundle: nil)
// iPhone 6 Plus
case 736:
storyboard = UIStoryboard.storyboardWithName("Main-6-Plus", bundle: nil)
default:
// it's an iPad
storyboard = UIStoryboard.storyboardWithName("Main", bundle: nil)
}
return storyboard
}
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