SwiftUI decoding image from String(Base64)

user_14088005 0
Viewed 1839

I have an image in the string (base 64) how I can decode this string for Image() using SwiftUI.

Know I am using this format:

Image(imageFromAppGroup(key: "image0")).resizable().frame(width: 70, height: 70)
                            .cornerRadius(10)
                            .background(Color(red: 0.218, green: 0.215, blue: 0.25))

I need a past base 64 images instead of "image0". How I can do this?

swiftui swift base64 decoding image
2 Answers

You can use a UIImage for this:

let str = "IMAGE"
Image(uiImage: UIImage(data: Data(base64Encoded: str)!)!)

You will not want to force unwrap with ! here, so you should handle that too:

let str = "IMAGE"

if let data = Data(base64Encoded: str), let uiImage = UIImage(data: data) {
    Image(uiImage: uiImage)
} else {
    let _ = print("FAIL")
}

You could also create an Image extension:

extension Image {
    init?(base64String: String) {
        guard let data = Data(base64Encoded: base64String) else { return nil }
        guard let uiImage = UIImage(data: data) else { return nil }
        self = Image(uiImage: uiImage)
    }
}

/* ... */

var body: some View {
    Image(base64String: str)
}
user_96078630

Something like this:

extension Image {
  init?(base64String: String) {
    guard let data = Data(base64Encoded: base64String) else { return nil }
    #if os(macOS)
    guard let image = NSImage(data: data) else { return nil }
    self.init(nsImage: image)
    #elseif os(iOS)
    guard let image = UIImage(data: data) else { return nil }
    self.init(uiImage: image)
    #else
    return nil
    #endif
  }
}

Usage:

Image(base64String: base64string)
user_31249750
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