У меня есть приложение, которое позволяет пользователям выбирать несколько изображений. Проблема в том, что он не загружает и не сохраняет изображение для пользователя в Firebase и не извлекает изображение.
Это мой код:
import UIKit
import Фотографии import Firebase import BSImagePicker
class Downloadimages: UIViewController {
@IBOutlet weak var imgView: UIImageView!
var ref: DatabaseReference?
var SelectedAssets = [PHAsset]()
var PhotoArray = [UIImage]()
override func viewDidLoad() {
super.viewDidLoad()
ref = Database.database().reference()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func addImagesClicked(_ sender: Any) {
// create an instance
let vc = BSImagePickerViewController()
//display picture gallery
self.bs_presentImagePickerController(vc, animated: true,
select: { (asset: PHAsset) -> Void in
}, deselect: { (asset: PHAsset) -> Void in
// User deselected an assets.
}, cancel: { (assets: [PHAsset]) -> Void in
// User cancelled. And this where the assets currently selected.
}, finish: { (assets: [PHAsset]) -> Void in
// User finished with these assets
for i in 0..<assets.count
{
self.SelectedAssets.append(assets[i])
}
self.convertAssetToImages()
}, completion: nil)
let image = UIImagePickerController()
image.delegate = self as? UIImagePickerControllerDelegate & UINavigationControllerDelegate
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
{
imgView.image = image
}
else
{
//error
}
self.dismiss(animated: true, completion: nil)
let storageRef = Storage.storage().reference().child("myImage.png")
if let uploadData = UIImagePNGRepresentation(self.imgView.image!){
storageRef.putData(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
}
)
}
}
func convertAssetToImages() -> Void {
if SelectedAssets.count != 0{
for i in 0..<SelectedAssets.count{
let manager = PHImageManager.default()
let option = PHImageRequestOptions()
var thumbnail = UIImage()
option.isSynchronous = true
manager.requestImage(for: SelectedAssets[i], targetSize: CGSize(width: 200, height: 200), contentMode: .aspectFill, options: option, resultHandler: {(result, info)->Void in
thumbnail = result!
})
let data = UIImageJPEGRepresentation(thumbnail, 0.7)
let newImage = UIImage(data: data!)
self.PhotoArray.append(newImage! as UIImage)
}
self.imgView.animationImages = self.PhotoArray
self.imgView.animationDuration = 3.0
self.imgView.startAnimating()
}
print("complete photo array \(self.PhotoArray)")
}
} и это мой почтовый индекс
import Foundation
class Post {var id: String var author: UserProfile var text: String var createAt: Date
init(id:String, author:UserProfile,text:String,timestamp:Double) {
self.id = id
self.author = author
self.text = text
self.createdAt = Date(timeIntervalSince1970: timestamp / 1000)
}
static func parse(_ key:String, _ data:[String:Any]) -> Post? {
if let author = data["author"] as? [String:Any],
let uid = author["uid"] as? String,
let username = author["username"] as? String,
let photoURL = author["photoURL"] as? String,
let url = URL(string:photoURL),
let text = data["text"] as? String,
let timestamp = data["timestamp"] as? Double {
let userProfile = UserProfile(uid: uid, username: username, photoURL: url)
return Post(id: key, author: userProfile, text: text, timestamp:timestamp)
}
return nil
}
} это мой userProfile
import Foundation
class UserProfile {var uid: String var username: String var photoURL : URL
init(uid:String, username:String,photoURL:URL) {
self.uid = uid
self.username = username
self.photoURL = photoURL
}
}
и это
import Foundation
import Firebase
class UserService {
static var currentUserProfile:UserProfile?
static func observeUserProfile(_ uid:String, completion: @escaping ((_ userProfile:UserProfile?)->())) {
let userRef = Database.database().reference().child("users/profile/\(uid)")
userRef.observe(.value, with: { snapshot in
var userProfile:UserProfile?
if let dict = snapshot.value as? [String:Any],
let username = dict["username"] as? String,
let photoURL = dict["photoURL"] as? String,
let url = URL(string:photoURL) {
userProfile = UserProfile(uid: snapshot.key, username: username, photoURL: url)
}
completion(userProfile)
})
}
}