不同的StoryBoard为每个屏幕尺寸迅速 [英] Different StoryBoard for each screen size swift

问题描述

如何在Swift中为每个可能的屏幕尺寸设置不同的故事板？

How do I set Different Storyboards for each possible screen size in Swift?

我已经有了Objective-C代码。

I already have the Objective-C code.

请不要自动布局，我不需要它。

Please, no Auto Layout, I don't need it.

但是如何将其转换为Swift？我是Swift的新手。

But how do I convert it to Swift? I am new to Swift.

这是Objective-C的代码：

Here is code for Objective-C:

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;
}

推荐答案

如果你只想转换Swift的代码你可以参考Apple的swift教程。您可以在iBook Store或网上查看该书。为了您的参考，我将代码转换为Swift。

If you just want to convert the code to the Swift you could reference the swift tutorial from Apple. You can check the book in the iBook Store or on the web. For your reference I converted the code into the 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
}

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