how to add an image in swift
//The first step is to rename the image you want to add into your xcode project
//Then, drag the picture to the Assets.xcassests folder.
//Next, use the Image struct and init(name) to display the picture
//For example, if your picture in the Assets.xcassests folder is named daddy, then to get the picture, use
Image("daddy")
//There are more modifiers to the Image but that will not be discussed hereuiimage swift src url
let imageCache = NSCache<AnyObject, AnyObject>()
class CustomImageView: UIImageView {
var ImageUrlString: URL?
func setImage(from url: URL, contentMode mode: UIViewContentMode = .scaleAspectFit) {
contentMode = mode
ImageUrlString = url
if let imageFromCache = imageCache.object(forKey: url as AnyObject) {
self.image = imageFromCache as? UIImage
return
}
URLSession.shared.dataTask(with: url) { data, response, error in
guard
let httpURLResponse = response as? HTTPURLResponse, httpURLResponse.statusCode == 200,
let mimeType = response?.mimeType, mimeType.hasPrefix("image"),
let data = data, error == nil,
let imageToCache = UIImage(data: data)
else { return }
DispatchQueue.main.async() {
if self.ImageUrlString == url {
self.image = imageToCache
}
imageCache.setObject(imageToCache, forKey: url as AnyObject)
}
}.resume()
}
func setImage(from link: String, contentMode mode: UIViewContentMode = .scaleAspectFit) {
guard let url = URL(string: link) else { return }
setImage(from: url, contentMode: mode)
}
}Copyright © 2021 Codeinu
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