Is this possible? It looks like I am going to need 9 different launch images, so replacing them all would be a bit of a chore.
Unfortunately, I think you can't use vector artwork for ALL of your LaunchImages...
... but there's an approach which makes our lives easier: the new LaunchScreen.xib.
In File > New, you create a new Launch Screen in User Interface:
Now, you can set the new Launch Screen File in your project's target:
In this LaunchScreen.xib you can put your vector artwork, using AutoLayout for adapt your vector to all screen sizes.
Why I told that you can't use vector artwork for ALL sizes? Because it only works in iOS 8+. For iOS 7, I created the PNG image and I put this in LaunchImage asset catalog, in the old way.
PS: I tested this approach only in simulator.
Yes, you can do this with XCode 6. This is a new feature added with the new release.
The Session 441 from WWDC 2014 give you more information about this way :)
- Make a new image set
- Click on the blank image set
- Choose vector into attributes inspector. Now you have a universal image !
- Drag your vector into this universal slot ;)
Enjoy !
来源：https://stackoverflow.com/questions/26307675/use-vector-artwork-for-ios-launch-image-in-asset-catalog