根据设备类型选择不同的故事板 [英] Selecting different storyboards based on device type

问题描述

我有一个通用应用程序，我在应用程序中手动加载我的主故事板：didFinishLaunchingWithOptions 。

I have a universal app in which I'm loading my main storyboard manually in application:didFinishLaunchingWithOptions.

我有2个适用于iPhone和iPad的故事板，其中包含 ~iPhone 和 ~iPad 后缀。我正在使用以下方式加载我的故事板：

I have 2 storyboards for iPhone and iPad which have the ~iPhone and ~iPad suffixes. I'm loading my storyboard using:

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
self.initialViewController = [storyboard instantiateInitialViewController];

这会在Interface Builder文件中输出未知类ViewController。到控制台，显然它没有加载正确的故事板。但是，当我使用 [UIStoryboard storyboardWithName：@MainStoryboard~iPhonebundle：nil]; 它工作正常，但当然只适用于iPhone。

This prints Unknown class ViewController in Interface Builder file. to the console, so apparently it's not loading the correct storyboard. However, when I use [UIStoryboard storyboardWithName:@"MainStoryboard~iPhone" bundle:nil]; it works fine, but of course will work only for iPhone.

我缺少什么？如何使用名称后缀自动选择正确的故事板？

What am I missing? How can I use the name suffixes to automatically select the correct storyboard?

推荐答案

我不知道任何基于故事板的自动选择在他们的文件名后缀。您可以使用 userInterfaceIdiom 来选择iPad与iPhone：

I am not aware of any automatic selection of storyboards based on their filename suffix. You can use userInterfaceIdiom to select for iPad vs iPhone:

if ([[UIDevice currentDevice] userInterfaceIdiom] ==UIUserInterfaceIdiomPad) {
    UIStoryboard *storyboard = 
    [UIStoryboard storyboardWithName:@"MainStoryboard_iPad" bundle:nil];
} else {
    [UIStoryboard storyboardWithName:@"MainStoryboard_iPhone" bundle:nil];
}

但是如果你这样做是为了启动一个特定的视图控制器，所有您需要做的是将开始箭头拖到故事板中的首选视图控制器

But if you are doing this to start up with a specifc view controller, all you need to do is drag the 'start' arrow to your preferred view controller in the storyboard

或者 - 选择故事板中的视图控制器，转到属性instpector和tick isInitialViewController

Or - select the view controller in the storyboard, go to the attributes instpector and tick isInitialViewController

这篇关于根据设备类型选择不同的故事板的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！