swift4:
Parfois, la chaîne a préfixe tels que data:image/png;base64,
qui fera base64Encoded
retours nil
:
extension String {
func base64ToImage() -> UIImage? {
if let url = URL(string: self),let data = try? Data(contentsOf: url),let image = UIImage(data: data) {
return image
}
return nil
}
}
code complet:
extension String {
func matches(for regex: String) -> [String] {
do {
let regex = try NSRegularExpression(pattern: regex)
let results = regex.matches(in: self, range: NSRange(self.startIndex..., in: self))
return results.map {
self.substring(with: Range($0.range, in: self)!)
}
} catch let error {
print("invalid regex: \(error.localizedDescription)")
return []
}
}
}
let result = text.matches(for: "data:image\\/([a-zA-Z]*);base64,([^\\\"]*)")
for imageString in result {
autoreleasepool {
let image = imageString.base64ToImage()
}
}
}
Swift 3 vous devez utiliser Data à la place de NSData. –
'si laissez imageData = données (base64Encoded: base64EncodedImageString options: .ignoreUnknownCharacters), let image = UIImage (données: imageData) {print (Image.Size) } ' –
MediaFile est une chaîne composée de caractères base64 –