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// 문제는 자신에 의해 당신의 도움에 여전히 감사를 발견 해결했다. Firebase에서 데이터를 업로드하고 검색 할 수 있습니다. 새 그림을 업로드 할 때 주석 값을 0으로 설정합니다. 사용자가 주석을 달았을 때 새 주석에 대해서는 +1 ("kommentAnzahl") +1을, 하나는 삭제되었습니다 (삭제는 아직 중요하지 않습니다). 내 라벨 anzahlKommentare이 (인스 타 그램이하는 것처럼) 각 게시물 아래에 사용자 의견의 양을 표시 할 수 할 수 있도록Swift3/중포 기지 업데이트 자녀
내 전체 코드는 이들의 표시 제 3 VC입니다 아래
class MemesTableViewController: UITableViewController {
var kommentarArray = [FotoComment]()
var dataBaseRef : FIRDatabaseReference!
var storageRef : FIRStorageReference!
var posts = [PostMitBild]()
var segmentedControl : HMSegmentedControl!
override func viewDidLoad() {
super.viewDidLoad()
segmentedControl = HMSegmentedControl(sectionTitles: ["Top Heute", "Beliebteste", "Neue"])
segmentedControl.frame = CGRect(x: 10, y: 10, width: 300, height: 60)
segmentedControl.backgroundColor = UIColor.red
segmentedControl.titleTextAttributes = [NSForegroundColorAttributeName: UIColor.white]
segmentedControl.borderColor = UIColor.brown
segmentedControl.tintColor = UIColor.black
segmentedControl.selectionIndicatorColor = UIColor.gray
segmentedControl.addTarget(self, action: #selector(getter: MemesTableViewController.segmentedControl), for: UIControlEvents.valueChanged)
tableView.tableHeaderView = segmentedControl
segmentedAction()
}
func segmentedAction() {
if segmentedControl.selectedSegmentIndex == 0 {
let postRef = FIRDatabase.database().reference().child("MemesBilder")
postRef.observe(.value, with: { (snapshot) in
var newPost = [PostMitBild]()
for post in snapshot.children {
let Post = PostMitBild(snapshot: post as! FIRDataSnapshot)
newPost.insert(Post, at: 0)
}
self.posts = newPost
DispatchQueue.main.async {
self.tableView.reloadData()
}
}, withCancel: { (error) in
print(error.localizedDescription)
})
}
}
//------------------------------------------
override func viewWillAppear(_ animated: Bool) {
if FIRAuth.auth()?.currentUser == nil {
let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "Login")
self.present(vc, animated: true, completion: nil)
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "postCell", for: indexPath) as! PostTableViewCell
if let seconds = posts[indexPath.row].postDate {
let timestamp = NSDate(timeIntervalSince1970: seconds)
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "dd/MM/yyyy HH:mm"
cell.uploadDatum.text = dateFormatter.string(from: timestamp as Date)
}
cell.kommentarZähler.text = String(posts[indexPath.row].kommentarAnzahl)
cell.usernameTextField.text = posts[indexPath.row].username
cell.postContent.text = posts[indexPath.row].content
storageRef = FIRStorage.storage().reference(forURL: posts[indexPath.row].userImageUrlString)
storageRef.data(withMaxSize: 1 * 1024 * 1024, completion: { (data, error) in
if error == nil {
DispatchQueue.main.async {
if let data = data {
cell.UserImageView.image = UIImage (data: data)
}
}
}else {
print(error?.localizedDescription)
}
})
let storageRef2 = FIRStorage.storage().reference(forURL: posts[indexPath.row].PostImageUrlString)
storageRef2.data(withMaxSize: 1 * 1024 * 1024, completion: { (data, error) in
if error == nil {
DispatchQueue.main.async {
if let data = data {
cell.postImageView.image = UIImage (data: data)
}
}
}else {
print(error?.localizedDescription)
}
})
return cell
}
//done!!!! ------------------------------------------
override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == .delete {
tableView.deleteRows(at: [indexPath], with: .fade)
let ref = posts[indexPath.row].ref
ref!.removeValue()
posts.remove(at: indexPath.row)
tableView.deleteRows(at: [indexPath], with: .fade)
}
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
var numberOfRows = 0
switch segmentedControl.selectedSegmentIndex {
case 0 : numberOfRows = posts.count
case 1: numberOfRows = posts.count
default: break
}
return numberOfRows
}
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 420.00
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segmentedControl.selectedSegmentIndex == 0 {
if segue.identifier == "addComment" {
let vc = segue.destination as! CommentTableViewController
let indexPath = tableView.indexPathForSelectedRow!
vc.selectedPosts = posts[indexPath.row]
}
}
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if segmentedControl.selectedSegmentIndex == 0 {
performSegue(withIdentifier: "addComment", sender: self)
}
if segmentedControl.selectedSegmentIndex == 1 {
performSegue(withIdentifier: "addComment", sender: self)
}
if segmentedControl.selectedSegmentIndex == 2 {
performSegue(withIdentifier: "addComment", sender: self)
}
}
}
import UIKit
import Firebase
import FirebaseAuth
import FirebaseDatabase
import FirebaseStorage
class CommentTableViewController: UITableViewController {
@IBOutlet weak var komentarZähler: UILabel!
@IBOutlet weak var UserImageView: UIImageView!
@IBOutlet weak var usernameTextField: UILabel!
@IBOutlet weak var postImageView: UIImageView!
@IBOutlet weak var postContent: UITextView!
var dataBaseRef : FIRDatabaseReference!
var storageRef : FIRStorageReference!
var commentsArray = [FotoComment]()
var selectedPosts:PostMitBild!
var DataBaseRef : FIRDatabaseReference! {
return FIRDatabase.database().reference()
}
override func viewDidLoad() {
super.viewDidLoad()
configurePost()
let commentRef = selectedPosts.ref!.child("Kommentare")
commentRef.observe(.value, with: { (snapshot) in
var newComments = [FotoComment]()
for item in snapshot.children {
let neuerKommentar = FotoComment(snapshot: item as! FIRDataSnapshot)
newComments.insert(neuerKommentar, at: 0)
}
self.commentsArray = newComments
self.tableView.reloadData()
}, withCancel: { (error) in
print(error.localizedDescription)
})
}
@IBAction func addComment(_ sender: UIBarButtonItem) {
let alertView = UIAlertController(title: "Kommentar", message: "Füge einen Kommentar hinzu", preferredStyle: UIAlertControllerStyle.alert)
alertView.addTextField { (textfield) in
textfield.placeholder = "Einen neuen Kommentar hinzufügen"
}
let sendCommentAction = UIAlertAction(title: "Kommentieren", style: .default) { (action) in
let textfield = alertView.textFields!.first!
let comment = FotoComment(content: textfield.text! , postId: self.selectedPosts.postId , username: (FIRAuth.auth()!.currentUser!.displayName!) , userImageUrlString: String(describing: FIRAuth.auth()!.currentUser!.photoURL!), postDate: (NSDate().timeIntervalSince1970))
let commentRef = self.selectedPosts.ref!.child("Kommentare").childByAutoId()
let myReference = FIRDatabase.database().reference()
myReference.child("MemesBilder").child("kommentarAnzahl").setValue(["kommentarAnzahl": 1])
commentRef.setValue(comment.toAnyObject())
// commentRef.child("kommentarAnzahl").updateChildValues(["kommentarAnzahl" : 1])
}
let cancelAction = UIAlertAction(title: "Abbrechen", style: .cancel, handler: nil)
alertView.addAction(sendCommentAction)
alertView.addAction(cancelAction)
self.present(alertView, animated: true, completion: nil)
}
// 2----------------------------------------------
func configurePost() {
usernameTextField.text = selectedPosts.username
postContent.text = selectedPosts.content
storageRef = FIRStorage.storage().reference(forURL: selectedPosts.userImageUrlString)
storageRef.data(withMaxSize: 1 * 1024 * 1024, completion: { (data, error) in
if error == nil {
DispatchQueue.main.async {
if let data = data {
self.UserImageView.image = UIImage (data: data)
}
}
}else {
print(error?.localizedDescription)
}
})
let storageRef2 = FIRStorage.storage().reference(forURL: selectedPosts.PostImageUrlString)
storageRef2.data(withMaxSize: 1 * 1024 * 1024, completion: { (data, error) in
if error == nil {
DispatchQueue.main.async {
if let data = data {
self.postImageView.image = UIImage (data: data)
}
}
}else {
print(error?.localizedDescription)
}
})
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
komentarZähler.text = "Kommentare: \(commentsArray.count)"
return commentsArray.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "commentCell", for: indexPath) as! CommentTableViewCell
if let seconds = commentsArray[indexPath.row].postDate {
let timestamp = NSDate(timeIntervalSince1970: seconds)
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "dd/MM/yyyy HH:mm:ss"
cell.uploadDatum.text = dateFormatter.string(from: timestamp as Date)
}
cell.usernameTextField.text = commentsArray[indexPath.row].username
cell.postContent.text = commentsArray[indexPath.row].content
storageRef = FIRStorage.storage().reference(forURL: commentsArray[indexPath.row].userImageUrlString!)
storageRef.data(withMaxSize: 1 * 1024 * 1024, completion: { (data, error) in
if error == nil {
DispatchQueue.main.async {
if let data = data {
cell.UserImageView.image = UIImage (data: data)
}
self.tableView.reloadData()
}
}else {
print(error?.localizedDescription)
}
})
return cell
}
}
import UIKit
import Firebase
import FirebaseStorage
import FirebaseAuth
import FirebaseDatabase
class AddImageViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate, UIPickerViewDelegate {
@IBOutlet weak var postImage: UIImageView!
@IBOutlet weak var textView: UITextView!
var dataBaseRef : FIRDatabaseReference! {
return FIRDatabase.database().reference()
}
var storageRef : FIRStorageReference! {
return FIRStorage.storage().reference()
}
override func viewDidLoad() {
super.viewDidLoad()
}
@IBAction func chooseImage(_ sender: UIButton) {
let pickerController = UIImagePickerController()
pickerController.delegate = self
pickerController.allowsEditing = true
let alertController = UIAlertController(title: "Bild aussuchen", message: "Suche dir dein neues Profilbild aus", preferredStyle: .actionSheet)
let cameraAction = UIAlertAction(title: "Kamera", style: .default, handler: { (action) in
pickerController.sourceType = .camera
self.present(pickerController, animated: true, completion: nil)
})
let photoLibraryAction = UIAlertAction(title: "Fotoalbum", style: .default, handler: { (action) in
pickerController.sourceType = .photoLibrary
self.present(pickerController, animated: true, completion: nil)
})
let safedPhotoAction = UIAlertAction(title: "Fotos", style: .default, handler: { (action) in
pickerController.sourceType = .savedPhotosAlbum
self.present(pickerController, animated: true, completion: nil)
})
let cancelAction = UIAlertAction(title: "Abbrechen", style: .destructive, handler: nil)
alertController.addAction(cameraAction)
alertController.addAction(photoLibraryAction)
alertController.addAction(safedPhotoAction)
alertController.addAction(cancelAction)
present(alertController, animated: true, completion: nil)
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
let image = info[UIImagePickerControllerOriginalImage] as! UIImage
self.postImage.image = image
self.dismiss(animated: true, completion: nil)
}
@IBAction func SafeAction(_ sender: UIBarButtonItem) {
let data = UIImageJPEGRepresentation(self.postImage.image!, 0.5)
let metadata = FIRStorageMetadata()
metadata.contentType = "image/jpeg"
let postId = "\(FIRAuth.auth()!.currentUser!.uid)\(NSUUID().uuidString)"
let imagePath = "postIMAGES\(postId)/postPic.jpg"
storageRef.child(imagePath).put(data!, metadata: metadata) { (metadata, error) in
if error == nil {
let postRef = self.dataBaseRef.child("MemesBilder").childByAutoId()
let post = PostMitBild(content: self.textView.text!, postId: postId, username: (FIRAuth.auth()?.currentUser?.displayName!)!, PostImageUrlString: String(describing: metadata!.downloadURL()!), userImageUrlString: String(describing: FIRAuth.auth()!.currentUser!.photoURL!), postDate: (NSDate().timeIntervalSince1970), kommentarAnzahl: 0)
postRef.setValue(post.toAnyObject())
let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "Memes")
self.present(vc, animated: true, completion: nil)
}else {
print(error!.localizedDescription)
}
}
_ = navigationController?.popToRootViewController(animated: true)
}
}
다음과 같습니다 업로드 된 사진 (CommentTableView) 사진 (AddImageView)를 추가하고 주석에 대한 사진 (MemesTableView), 아래로 내 중포 기지 구조가
이 내 구조체모습입니다처럼 보이는 방법을 아래에
17,451,515,
내가 업데이트를위한 샘플 기능을 준
This is my JSON Tree in written format
completer을 찾을 수 있습니다보십시오. 실제 JSON을 텍스트로 바꾸십시오. Firebase 데이터베이스 콘솔에서 내보내기 버튼을 클릭하면 쉽게 얻을 수 있습니다. JSON을 텍스트로 사용하면 검색이 가능해 지므로 실제 데이터로 테스트하고이를 사용하여 쉽게 답변 할 수 있습니다. 일반적으로 할 일은 단지 좋은 일입니다. –
https://witzeapp-4ec48.firebaseio.com/ 그게 무슨 뜻입니까? : 미안해. 나는 초보자 야. –
OKAy iils은 JSON 트리 그림을 서면 형식으로 업데이트했습니다. 희망이 도움이됩니다. –