swift – 将图像上传到Firebase存储和数据库

概述我想将图像的下载URL放入Firebase数据库.我可以将图像上传到存储中,但我无法弄清楚如何使用“帖子”的其余部分将URL放入我的数据库. @IBOutlet weak var titleText: UITextField!@IBOutlet weak var authorText: UITextField!@IBOutlet weak var mainText: UITextView!@ 我想将图像的下载URL放入Firebase数据库.我可以将图像上传到存储中,但我无法弄清楚如何使用“帖子”的其余部分将URL放入我的数据库.

@IBOutlet weak var TitleText: UITextFIEld!@IBOutlet weak var authorText: UITextFIEld!@IBOutlet weak var mainText: UITextVIEw!@IBOutlet weak var dateText: UITextFIEld!@IBOutlet weak var myImageVIEw: UIImageVIEw!var ref:FIRDatabaseReference?overrIDe func vIEwDIDLoad() {    super.vIEwDIDLoad()    ref = FIRDatabase.database().reference()}overrIDe func dIDReceiveMemoryWarning() {    super.dIDReceiveMemoryWarning()}@IBAction func uploadImage(_ sender: Any) {       let image = UIImagePickerController()    image.delegate = self    image.sourceType = UIImagePickerControllerSourceType.photolibrary    image.allowsEditing = false    self.present(image,animated: true)    {        //after its completed    }}@objc(imagePickerController:dIDFinishPickingMediawithInfo:) func imagePickerController(_ picker: UIImagePickerController,dIDFinishPickingMediawithInfo info: [String : Any]){    if let image = info[UIImagePickerControllerOriginalimage] as? UIImage    {        myImageVIEw.image = image    }    else    {        //error    }    self.dismiss(animated: true,completion: nil)    let storageRef = Firstorage.storage().reference().child("myImage.png")    if let uploadData = UIImagePNGRepresentation(self.myImageVIEw.image!){        storageRef.put(uploadData,Metadata: nil,completion:            {                (Metadata,error) in                if error != nil {                    print("error")                    return                }   print(Metadata)   //how do I put the download URL in the Metadata into my database        }          )    }}@IBAction func addPost(_ sender: Any) {    if self.TitleText.text != "" && self.authorText.text != "" && self.mainText.text != "" && self.dateText.text != ""    {        ref?.child("posts").childByautoID().setValue(["Title": TitleText.text,"Article": mainText.text,"Author": authorText.text,"Date": dateText.text,"myImageURL": myImageURL])        //the myImageURL part is where I get an error        self.performSegue(withIDentifIEr: "post",sender: self)    }    else{        let alertController = UIAlertController(Title: "Oops!",message: "FIEld left blank",preferredStyle: .alert)        let defaultAction = UIAlertAction(Title: "Ok",style: .cancel,handler: nil)        alertController.addAction(defaultAction)        self.present(alertController,animated: true,completion: nil)        }    }}

组织您的上传并保存这样的功能：

func uploadMedia(completion: @escaPing (_ url: String?) -> VoID) {     let storageRef = Firstorage.storage().reference().child("myImage.png")    if let uploadData = UIImagePNGRepresentation(self.myImageVIEw.image!) {        storageRef.put(uploadData,Metadata: nil) { (Metadata,error) in            if error != nil {                print("error")                completion(nil)            } else {                completion((Metadata?.downloadURL()?.absoluteString)!))                 // your uploaded photo url.            }       } }

接下来只需连接到FIRDatabase并将其保存到您的节点.

@IBAction func addPost(_ sender: Any) {     if self.TitleText.text   != "" && self.authorText.text != ""         && self.mainText.text != "" && self.dateText.text   != "" {     uploadMedia() { url in           guard let url = url else { return }          ref?.child("posts").childByautoID().setValue([                                "Title"      : TitleText.text,"Article"    : mainText.text,"Author"     : authorText.text,"Date"       : dateText.text,"myImageURL" : url!                                ])     } }

您还可以查看有关上载数据和将URL保存到数据库的my answer

希望能帮助到你

总结

以上是内存溢出为你收集整理的swift – 将图像上传到Firebase存储和数据库全部内容，希望文章能够帮你解决swift – 将图像上传到Firebase存储和数据库所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。