在应用程序和今日小部件之间共享图像资源

Question

Can I share resources (images that are compiled into the application) between my main iOS app and my today extension widget? Say I create a new application. Then add a today extension project to the solution. And then I create a UIImageView. I want to reference an image from a shared pool of images rather than having 2 of every image, one added to main app and another added to widget app.

imageView.Image = UIImage.FromBundle("IMG_3799.JPG");

The IMG_3799.JPG is inside the main application in the References folder of that project. I'd prefer the same image asset to be referenced by the widget. Is that possible? Currently, i'm making a 2nd copy of IMG_3799.JPG and putting it into the widget.

Answer 1

Out of box, you can't.

The closest thing to that would be to create an app group that contains the main app and the extension and that has access to the common folder. However you can't place any file there during deployment, just during runtime, so it may or may not be a workaround for what you require, but that is the only way.

Answer 2

I came across this answer while looking for a way to share images between my main app and my iMessage extension. As it turns out, just by adding the image files to both targets I was able to use one single copy of my images in both places.

In the project navigator, I added the images to a folder (not .xcassets) under my main project (not the extension) and just ensured that the Target Membership was set to both the main app and extension.