ios - How to let a UIImage only stretch in a specific area?

Question

var contentImageView: UIImageView!{
    didSet{
        contentImageView.image!.resizableImageWithCapInsets(UIEdgeInsets(top: 5,left: 5,bottom: 5,right: 5))
    }
}

I have tried this code after searching in the Internet.

But it didn't work and the result is:

Are there any better ways to implement?

Answer 1

There is a sleek option in Xcode .xcassets. You can select the images and slice it from there so that it's strechable in specific parts only below are the images please explore this option.

1. For your purpose just select the middle option (slice vertically and horizontally) for chat bubble.

2. After Slicing.

3. Top Image is image with slicing. Bottom image is image without slicing.

Borrowed Bhavin's Image for demonstration :D