在share扩展中使用SVProgressHUD

Question

我在一个iOS应用程序中使用了SVProgressHUD，它工作得很好。我想使用它也为该应用程序的共享扩展，但它不显示应用程序。我为share扩展视图使用了一个自定义视图，下面是我用来调用SVProgressHUD的代码。请注意，打印上传进度的效果很好。我做错了什么？谢谢。

class ShareViewController: UIViewController {
        ...
        Alamofire.upload(multipartFormData: { multipartFormData in
            multipartFormData.append(jpgImageData!, withName: "file",fileName: fname, mimeType: "image/jpg")
            for (key, value) in parameters {
                multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)
            }
        },
                         to:url!)
        { (result) in
            switch result {
            case .success(let upload, _, _):

                upload.uploadProgress(closure: { (progress) in
                    print("Upload Progress: \(progress.fractionCompleted)")
                    SVProgressHUD.setViewForExtension(self.view)
                    SVProgressHUD.showProgress(Float(progress.fractionCompleted))
                })
                upload.responseJSON { response in
                if response.response?.statusCode == 200{
                    if let result = response.result.value {
                        DispatchQueue.main.async(execute: {

                            let pre = NSLocale.preferredLanguages[0]
                            var message = "Message"
                            SVProgressHUD.showSuccess(withStatus: message)
                            SVProgressHUD.dismiss(withDelay: 2)
                            self.extensionContext?.completeRequest(returningItems: nil, completionHandler: nil)
         })      

}

Answer 1

尝尝这个

class ShareViewController: UIViewController {
...
Alamofire.upload(multipartFormData: { multipartFormData in
multipartFormData.append(jpgImageData!, withName: "file",fileName: fname, mimeType: "image/jpg")
for (key, value) in parameters {
multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)
}
},
to:url!)
{ (result) in
switch result {
case .success(let upload, _, _):

upload.uploadProgress(closure: { (progress) in
print("Upload Progress: \(progress.fractionCompleted)")
 DispatchQueue.main.async(execute: {
SVProgressHUD.setViewForExtension(self.view)
SVProgressHUD.showProgress(Float(progress.fractionCompleted))
})
})
...
}