从iOS11分享时,iOSShareExtension崩溃

我正在开发一个使用照片共享扩展程序的iOS应用程序,其中处理图像并触发我们的主要功能.

在Photo的应用程序的模拟器中,这很好用.我决定使用Photo的应用程序在设备上运行它也很棒,但是当我截图并尝试从iOS 11的新"快速截图"分享时,扩展程序崩溃,任何想法？

扩展程序获取图像,将其发送到服务器,获取响应并显示该响应(所有内容都在扩展中).当我从快速截图访问时,Messenger和Snapchat共享扩展仍然有用,这让我很烦恼!

Xcode 9也没有给我任何来自共享扩展的日志.同样值得注意的是,每次我在设备上重新安装应用程序时,我都在使用我需要"信任"的开发者帐户.

码:

// App Group keys

let suiteName = "group.suite.id"

override func viewDidLoad() {
    print("Styling views..")
    styleViews()
    print("Styled views")
    print("Adding notifications..")
    addNotifications()
    print("Added notifications")
    print("Fetching image..")
    fetchSharedImage()
}

func styleViews(){
    // Set up main view
    mainView.layer.cornerRadius = 8
    mainShadowView.addShadow()

    // Set up views and buttons
    // Code hidden, applies shadows etc.

    // Code hidden, moves constraints of a view
}

func addNotifications(){
    // Helps views tell their parent (this view controller) to navigate to another form
    NotificationCenter.default.addObserver(forName: NotificationDisplayFetchedLink, object: nil, queue: nil){ notification in
        // Handles user info in lambda block
        guard let userInfo = notification.userInfo,
            let link = userInfo["link"] as? String
            else {
                print("No userInfo found in notification")
                return
            }
        self.displayResult(with: link)
    }
}

func fetchSharedImage(){
    // Make sure we have a valid extension item
    if let cOntent= extensionContext!.inputItems[0] as? NSExtensionItem {
        let cOntentType= kUTTypeImage as String

        // Verify the provider is valid
        if let cOntents= content.attachments as? [NSItemProvider] {
            // look for images
            for attachment in contents {
                if attachment.hasItemConformingToTypeIdentifier(contentType) {
                    attachment.loadItem(forTypeIdentifier: contentType, options: nil) { data, error in
                        let url = data as! URL
                        if let imageData = try? Data(contentsOf: url) {
                            self.selectedImage = UIImage(data: imageData)

                            DispatchQueue.main.async {
                                self.selectedImageView.layer.cornerRadius = 8
                                self.selectedImageView.image = self.selectedImage
                            }
                            self.makeWebRequest()

                        }
                    }
                }
            }
        }
    }
}

func makeWebRequest(){
    let url = URL(string: "url.json")
    let task = URLSession.shared.dataTask(with: url!) { data, response, error in
        guard error == nil else {
            return
        }
        guard let data = data else {
            // Data is empty
            return
        }

        let json = try! JSONSerialization.jsonObject(with: data, options: []) as! NSDictionary
        guard let dict = json as? [String:Any] else { return }
        let item = dict["item"]
        guard let itemData = item as? [[String:Any]] else { return }
        let link = itemData[0]["url"]
        NotificationCenter.default.post(name: NotificationDisplayFetchedLink, object: nil, userInfo: [link: link!])
    }
    task.resume()
}

编辑:

所以解决方案(正如Owen Zhao所说)是iOS 11截图编辑器返回UIImage,而像Photos这样的应用程序会返回URL.

我优雅地处理这个问题的解决方案是将UIImage或URL转换为UIImage到iOS临时目录(3天后删除),然后将该目录中图像的URL保存到共享扩展.

let url = data as! URL if let imageData = try? Data(contentsOf: url) {

问题是因为这里的数据不是URL.它是一个"public.image",尝试转换为UIImage而不是Data.