我实现了更改个人资料图片的功能。执行流程如下
Select image -> upload to server -> Download from server and display it user.
此流程随机运行良好。图片上传总是成功，我总是得到一个 URL 作为响应。但是当我尝试显示该图像时，不知何故它没有显示在 ImageView 中。但是相同的 URL 在所有浏览器(Sfari、chrome、IE)中显示图像。我无法理解我在上传或下载图像时遇到的问题。
代码附在下面。任何帮助，将不胜感激。
Image uploading:-
func updateProfile(userUpdateRequest:UsersRequest ,completionBlock completion: @escaping ( _ fileURL : String)->Void, failureBlock failure: @escaping ( _ error: String) -> Void) {
let url = "\(SPConfigurations.getBaseURL())/\(APIConstants.getProfileUpdateRequestRoute(userRequest: userUpdateRequest))"
Alamofire.upload(multipartFormData: { multipartFormData in
if (userUpdateRequest.image != nil) {
let fileData = userUpdateRequest.image!.jpegData(compressionQuality: 0.5)!
multipartFormData.append(fileData, withName: "file", fileName:UUID().uuidString , mimeType: "image/jpeg")
}
}, to: url, method: .post, headers:APIConstants.authHeaders()) { encodingResult in
switch encodingResult {
case .success(let upload, _, _):
upload.responseJSON { response in
if let err = response.error {
failure(err.localizedDescription)
return
} else {
if let result = response.result.value as? [String:Any] {
if let dataValue = result["data"] as? [String:Any] {
if let fileUrl = dataValue["profile_picture_url"] as? String {
completion(fileUrl)
} else {
completion("")
}
}
}
}
}
case .failure(let encodingError):
failure(encodingError.localizedDescription)
}
}
}
Image Downloading:- Its extension of Imageview & its working fine for all images except the ones i am uploading.
func setImage (urlString: String,placeHolderString : String = "placeholder") {
let placeHolderImage = UIImage.init(named: placeHolderString)
if(urlString.trim() == "") {
self.image = placeHolderImage
return
}
self.kf.setImage(with: URL(string: urlString)!, placeholder: placeHolderImage, options: nil, progressBlock: { (receivedSize, totalSize) -> () in
}, completionHandler: { (image, error, cacheType, imageURL) -> () in
DispatchQueue.main.async {
if(image != nil) {
self.image = image
}
}
}
)
}
Example URL which does not get displayed : https://snikpic-image-bucket.s3.us-east-2.amazonaws.com/5013571a-f020-4321-a59f-522da6269635/d7872db2-5b9f-4d4c-8839-7604bffc02d7.jpeg
最佳答案
尝试设置无进度条的图片
self.imageView?.kf.setImage(with: URL(string: urlString)!)
关于ios - ImageView : iOS, Swift 中显示一些随机图像而不是来自 URL 的实际图像，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/54822523/