如何在启动故事板中使用资产目录中的启动映像？

Question

I do need to support both storyboard-based launch screens and 'traditional' launch images in a project.

Adding a Launch Screen storyboard with an UIImageView pointing to the launch screen seemed like a straightforward way of doing so. Yet, Interface Builder cannot locate the launch image and cannot display it at all.

As all sizes differ also in content, will the storyboard even select the right image?

Reconstructing the images with size classes and constraints is not quite possible, so

TL;DR : How do use a Launch Storyboard that uses the corresponding images from the set of launch screen images?

Answer 1

In Assets.xcassets, click on + and select App Icons & Launch Images --> New iOS Launch Image. Drag & Drop your Launch Images with the mentioned sizes. Now in Project & targets List, select your Project & then General Tab. In App Icons & Launch Images, click on Launch Images Source & select your newly created source file.

Answer 2

I know this is an old question. Short answer is "you can't", but there is a workaround.

Here is how I do it:

Do not add the images you want to use to an asset catalog. Instead, add the images directly to your project and make sure you have them included in the target. You have to go back to the old "image.png", "image@2.png", "image@3.png" naming convention in order to supply different images for different screen sizes.

Hope that helps anyone who comes across this.