Question

我使用Firebase作为我应用的后端。用户完成身份验证后，将转到配置文件创建页面。它显示来自facebook的用户个人资料图片。

我使用此代码显示

func displayProfilePic(user: FIRUser?){

let photoURL = user?.photoURL
struct last {
  static var photoURL: NSURL? = nil
}
last.photoURL = photoURL;  // to prevent earlier image overwrites later one.
if let photoURL = photoURL {
  dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), {
    let data = NSData.init(contentsOfURL: photoURL)
    if let data = data {
      let image = UIImage.init(data: data)
      dispatch_async(dispatch_get_main_queue(), {
        if (photoURL == last.photoURL) {
          self.profilePic.image = image
        }
      })
    }
  })
} else {
  profilePic.image = UIImage.init(named: "DefaultPic")
}

然而，我还让用户通过相机或照片库选择自己的个人资料照片。当用户选择他们的图像时，它将显示所选图像1至2秒，并显示回Facebook图像。 这意味着，＆＃34;选择的图片无法取代Facebook个人资料图片＆＃34;

这是我的相机和照片库代码

func openGallary(){

if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.SavedPhotosAlbum){
  print("Pick Photo")

  self.imagePicker.delegate = self
  self.imagePicker.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
  self.imagePicker.allowsEditing = true
  self.presentViewController(self.imagePicker, animated: true, completion: nil)
}
}

func openCamera(){
if(UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera)){
  self.imagePicker.sourceType = UIImagePickerControllerSourceType.Camera
  self.imagePicker.allowsEditing = true
  self.presentViewController(self.imagePicker, animated: true, completion: nil)

}else{
  print("you got no camara")
}
}

func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage!, editingInfo: [NSObject : AnyObject]!) {
self.dismissViewControllerAnimated(true, completion: { () -> Void in

})
profilePic.image = image
}

Answer 1

Firebase身份验证会拍摄照片网址，因此会显示用户个人资料照片的公共位置。如果您希望允许用户上传新的个人资料照片，则必须找到存储照片的位置，然后将该网址放入Firebase身份验证配置文件中。

保留此类个人资料照片的一个地方是Firebase存储。请参阅how to upload an image from iOS上的文档，然后查看存储在用户个人资料中的generate a download URL。

Swift显示的firebase photoUrl无法替换图像选择器的图像

1 个答案: