Ios I'；m通过不'；t仅获取视频用户Id和配置文件图像（Swift 3）

我传递的变量是一个用户。用户通过，但当我通过uid时，它只显示用户名和配置文件图片。当我传递uid时，用户名、配置文件图像和视频都应该传递。我不知道为什么它没有得到视频。它只显示当前用户（已登录的用户）的视频

以下是更好理解的代码：

用户搜索控制器：

class UserSearchController: UICollectionViewController, UICollectionViewDelegateFlowLayout,UISearchBarDelegate, UISearchDisplayDelegate, GetUserSearchControllerDelegate {

let searchUsersCV: SearchUsersCV = {
    let screenHeight = UIScreen.main.bounds.height
    let screenWidth  = UIScreen.main.bounds.width
    let cv = SearchUsersCV(frame: CGRect(x: 0, y: 0, width: screenWidth, height: screenHeight))
    cv.bringSubview(toFront: cv)
    cv.collectionView.register(UserSearchCVCell.self, forCellWithReuseIdentifier: "cellId")

    return cv
}()

func searchControllerDidSelect(passedUser: User) {
    self.searchBar.isHidden = true
    searchBar.resignFirstResponder()

    let userProfileController = UserProfileController(collectionViewLayout: UICollectionViewFlowLayout())

    userProfileController.userId = passedUser.uid

    (searchUsersCV.next as? UIViewController)?.navigationController?.pushViewController(userProfileController, animated: true)

    self.navigationController?.pushViewController(userProfileController, animated: true)
}

class UserProfileController: UICollectionViewController, UICollectionViewDelegateFlowLayout {

let cellId = "cellId"
var userId: String?

var user: User?

fileprivate func fetchUser() {
    let uid = userId ?? FIRAuth.auth()?.currentUser?.uid ?? ""

    FIRDatabase.fetchUserWithUid(uid: uid) { (user) in
        self.user = user

        self.navigationItem.title = self.user?.username

        self.collectionView?.reloadData()

    }        
}

UserSearchCV:

protocol GetUserSearchControllerDelegate {
func searchControllerDidSelect(passedUser: User)
}

class SearchUsersCV: UIView, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout,UISearchBarDelegate {

 var delegate: GetUserSearchControllerDelegate?

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
    collectionView.keyboardDismissMode = .onDrag
    let user = filteredUsers[indexPath.item]

    delegate?.searchControllerDidSelect(passedUser: user)

}

用户配置文件控制器：

class UserSearchController: UICollectionViewController, UICollectionViewDelegateFlowLayout,UISearchBarDelegate, UISearchDisplayDelegate, GetUserSearchControllerDelegate {

let searchUsersCV: SearchUsersCV = {
    let screenHeight = UIScreen.main.bounds.height
    let screenWidth  = UIScreen.main.bounds.width
    let cv = SearchUsersCV(frame: CGRect(x: 0, y: 0, width: screenWidth, height: screenHeight))
    cv.bringSubview(toFront: cv)
    cv.collectionView.register(UserSearchCVCell.self, forCellWithReuseIdentifier: "cellId")

    return cv
}()

func searchControllerDidSelect(passedUser: User) {
    self.searchBar.isHidden = true
    searchBar.resignFirstResponder()

    let userProfileController = UserProfileController(collectionViewLayout: UICollectionViewFlowLayout())

    userProfileController.userId = passedUser.uid

    (searchUsersCV.next as? UIViewController)?.navigationController?.pushViewController(userProfileController, animated: true)

    self.navigationController?.pushViewController(userProfileController, animated: true)
}

class UserProfileController: UICollectionViewController, UICollectionViewDelegateFlowLayout {

let cellId = "cellId"
var userId: String?

var user: User?

fileprivate func fetchUser() {
    let uid = userId ?? FIRAuth.auth()?.currentUser?.uid ?? ""

    FIRDatabase.fetchUserWithUid(uid: uid) { (user) in
        self.user = user

        self.navigationItem.title = self.user?.username

        self.collectionView?.reloadData()

    }        
}

---

如果您还有任何问题，请告诉我。

在这里，我尝试了代码以获得预期的结果。我这样做是为了你的userprofileController

1） 创建两个数组，如下所示

var videoUrlArray = [String]()
var thumbnailUrlArray = [String]()

2） 使用以下代码不要替换。注释你的代码并在那里使用我的代码

fileprivate func fetchOrderedPosts() {

    let ref = FIRDatabase.database().reference().child("posts").child(currentUserID)

    ref.queryOrdered(byChild: "creationDate").observe(.value, with: { (snapshot) in

        let dict = snapshot.value as! [String:AnyObject]
        print(dict)


        let dictValues = [AnyObject](dict.values)
        print(dictValues)

        for key in dictValues{

            let imageUrl = key["videoUrl"] as! String
            let imageThumbnail = key["thumbnailUrl"] as! String

            self.videoUrlArray.append(imageUrl)
            self.thumbnailUrlArray.append(imageThumbnail)

        }

            self.getResults()
    })
}

func getResults(){

    print("Thumbnail array : \(self.thumbnailUrlArray)")
    print("videoUrlArray : \(self.videoUrlArray)")

     self.collectionView?.reloadData()
}

3） 控制台的输出结果

---

现在，您可能需要根据从这两个阵列接收的内容配置单元。。希望对您有所帮助：）并让我知道您是否仍然面临此代码实现的任何问题

我可以查看您的数据库结构和用户类吗please@iOSGeek是的，我刚刚编辑了这篇文章@iOSGeek It上传帖子并正确接收，但在查看其他用户时不会接收帖子。它显示的是当前用户的帖子，而不是您是否正在使用posts节点中的处理程序迭代并从UID获取详细信息？您得到的结果是来自节点用户。我不这么认为/可能。我可以解释我的意思，如果我们进入聊天室，最好解释一下@iOSGeek