SDWebImageSwiftUI - How to load a fallback image if the first one fails?-CodePudding

I need to grab another image in case the initial one fails and Im having a hard time figuring how to do this with SDWebImageSwiftUI.

On regular SDWebImage I could just do an extension on UIImage such as:

self.sd_setImage(with: url) { (image, error) in
            if (error != nil) {
                self.image = image
            } else {
                self.sd_setImage(with: secondURL)
            }
        }

Any clue as to how to do the same on SDWebImageSwiftUI?

CodePudding user response：

You could use the onFailure property on WebImage. Something like this could work:

import SDWebImageSwiftUI

struct DoubleImageView: View {
    @State var url = URL(string: "https://via.placeholder.com/150x150.jpg")

    var body: some View {
        WebImage(url: url)
            .placeholder(Image(systemName: "person").resizable())
            .onFailure { _ in
                url = URL(string: "https://via.placeholder.com/72x72.jpg")
            }
            .resizable()
            .frame(width: 100, height: 100)
    }
}

Just change the initial url to "https://via.placeholder.com" and that will cause a failure to load the image, which will in turn update the url and cause the image to be reloaded with the new url.

CodePudding user response：

import SDWebImageSwiftUI


struct ContentView: View {
    var body: some View {
             WebImage.init(url: URL(string: "https://via.placeholder.com/300/09f.png/fff"))
.placeholder(Image(uiImage: #imageLiteral(resourceName: "placeholder")))
        }
 }

The above code worked for me, Hope it will work for you :)