将geoFire位置保存在随机Firebase ID Swift 4下

Question

我正在尝试将geofire信息保存在每个postId下，但目前还不确定如何保存。有人可以帮我弄清楚如何在postId节点下保存信息。

        @objc func handlePost() {

    navigationItem.rightBarButtonItem?.isEnabled = false

    guard let uid = Auth.auth().currentUser?.uid else { return }

    guard let caption = textView.text, caption.characters.count > 0 else { return }

    let userPostRef = Database.database().reference().child("posts").child(uid)

    let ref = userPostRef.childByAutoId()

    guard let locationName = locationNameButton.titleLabel?.text else { return }

    let latitude = lat
    let longitude = long

    let geoLatitude = (latitude as! NSString).doubleValue
    let geoLongitude = (longitude as! NSString).doubleValue

    geoFireRef = Database.database().reference().child("posts").child(uid)
    geoFire = GeoFire(firebaseRef: geoFireRef)

    let values = ["caption": caption,"locationName": locationName, "latitude": latitude,"longitude": longitude,"creationDate": Date().timeIntervalSince1970] as [String : Any]

    geoFire?.setLocation(CLLocation(latitude: geoLatitude, longitude: geoLongitude), forKey: ref.key!)

Answer 1

如果要将地理位置存储在与

相同的键下

    let source: ImageResource = ImageResource(downloadURL: URL(string: path)!)

    let options: KingfisherOptionsInfo = [.backgroundDecode,
                                          .processor(DefaultImageProcessor.default),
                                          .cacheSerializer(DefaultCacheSerializer.default)]
    KingfisherManager.shared.retrieveImage(with: source,
                                           options: options,
                                           progressBlock: nil) { (image, error, cacheType, url) in
        ....                                            
    }

您可以简单地从ref获取let ref = userPostRef.childByAutoId() 属性。所以：

key