如何为同一项目中的不同目标设置不同的AppDelegate? [英] How to set different AppDelegate for different targets within same project?

问题描述

我对Xcode中的目标概念非常陌生.我已按照此教程来学习创建两个目标在同一个项目中.我只想知道如何使目标A使用AppDelegateA.swift作为其指定的应用程序委托，而目标B使用AppDelegateB.swift作为其指定的应用程序委托.因为在本教程中，它实际上教导了如何从同一AppDelegate制作两个应用程序.但是我制作了两个(几乎)完全不同的应用程序，它们共享许多资源和库.

I'm very very new to the target concept in Xcode. I have followed this tutorial to learn to create two targets in the same project. I just want to know how to make target A use AppDelegateA.swift as its designated app delegate, and target B use AppDelegateB.swift as its designated app delegate. Because on the tutorial, it actually teaches how to make two apps from the same AppDelegate. But I make two (almost) completely different apps, that share a lot of resources and libraries.

在我们讨论主题时，我是否也可以让目标A使用一个名为Main的情节提要，目标B也使用一个名为Main的情节提要，但它们实际上是一个不同的情节提要(但放到一起同一项目)?

And while we're on the subject, can I also have target A use a storyboard called Main, and target B also use a storyboard called Main, but they are actually a different storyboard (but put together inside the same project)?

推荐答案

是的，您可以根据目标创建两个不同的对象，并进行以下更改:

Yes you can create 2 different based upon the target make following changes:

在项目中

main.m

您可以做类似的事情

int main(int argc, char *argv[])
{
    @autoreleasepool {

        NSString *appDelegateName;
        if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone){
            appDelegateName =  NSStringFromClass([AppDelegateIPhone class]);
        } else {
            appDelegateName =  NSStringFromClass([AppDelegateIPad class]);
        }
        return UIApplicationMain(argc, argv, nil, appDelegateName);
    }
}

但是IMO，您不应该这样做.

But IMO you should not do it.

与苹果一样，在应用程序委托中加载不同的视图控制器或不同的XIB.

Instead doi it as apple does it to, in app delegate load different view controllers or different XIBs.

    @implementation AppDelegate

    - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
    {
        self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
        // Override point for customization after application launch.
        if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
            self.viewController = [[[ViewController alloc] initWithNibName:@"ViewController_iPhone" bundle:nil] autorelease];
        } else {
            self.viewController = [[[ViewController alloc] initWithNibName:@"ViewController_iPad" bundle:nil] autorelease];
        }
        self.window.rootViewController = self.viewController;
        [self.window makeKeyAndVisible];
        return YES;
    }

@end

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