Question

尝试从UIImagePicker创建存储在Firebase中的图像，因为ImageData为零而收到致命信息。图像选择器如何返回零？

func imagePickerController(_ picker: UIImagePickerController,
                           didFinishPickingMediaWithInfo info: [String : Any]) {
    picker.dismiss(animated: true, completion:nil)
    guard let uid = Auth.auth().currentUser?.uid else { return }

        guard let image = info[UIImagePickerControllerOriginalImage] as? UIImage else { return }
        let imageData = UIImageJPEGRepresentation(image, 0.8)
        let imagePath = "\(uid)/\(Int(Date.timeIntervalSinceReferenceDate * 1000)).jpg"
        let metadata = StorageMetadata()
        metadata.contentType = "image/jpeg"
        self.storageRef.child(imagePath)
            .putData(imageData!, metadata: metadata) { [weak self] (metadata, error) in
                if let error = error {
                    print("Error uploading: \(error)")
                    return
                }



    }

Answer 1

你可以删除这一行吗，

    picker.dismiss(animated: true, completion:nil)

并将其放在imagePickerController方法的末尾，而不是在开头。看起来你过早地解雇了选择器，因此图像变为零。

将UIImage从ImagePicker展开到Firebase.Storage时会致命

1 个答案: