小编Tim*_*ogy的帖子

嘿,我需要帮助这个编码,我不知道发生了什么.它前几天正在工作.之后出现错误if let ur; = metaData?.downladURL()

func uploadProfileImage(_ image:UIImage, completion: @escaping ((_ url:URL?)->())) {
        guard let uid = Auth.auth().currentUser?.uid else { return }
        let storageRef = Storage.storage().reference().child("user/\(uid)")

        guard let imageData = UIImageJPEGRepresentation(image, 0.75) else { return }

        let metaData = StorageMetadata()
        metaData.contentType = "image/jpg"

        storageRef.putData(imageData, metadata: metaData) { metaData, error in
            if error == nil, metaData != nil {
                if let url = metaData?.downloadURL() {
                    completion(url)
                } else {
                    completion(nil)
                }
                // success!
            } else {
                // failed
                completion(nil)
            } …