here is my cells page code
var body : some View{
NavigationView {
List(getPairsUser()){i in
NavigationLink(destination: ChatView(friend:i)){
cellView(user : i)
}
.navigationBarTitle(Text("Friends List"),displayMode: .inline)
}
.navigationBarHidden(true)
}.frame(minWidth: UIScreen.main.bounds.width, idealWidth: UIScreen.main.bounds.width, maxWidth: UIScreen.main.bounds.width, maxHeight: .infinity)
.clipShape(Rounded())
}
in the navigationLink destination is ChatView()
and ChatView's code is here
struct ChatView: UIViewControllerRepresentable {
@EnvironmentObject var obser:Observer
var db = Firestore.firestore()
var friend:User!
var messageRef:CollectionReference!
var pairRef:CollectionReference!
init(friend:User){
self.friend = friend
}
func updateUIViewController(_ uiViewController: ChatViewController, context: Context) {
if(uiViewController.left){
if(!self.obser.messageListenerFlag[friend.pairUid]!){
self.obser.messageListenerFlag[friend.pairUid] = true
if( uiViewController.lastMessageDate != nil){
self.obser.pairLastMessages[friend.pairUid] = uiViewController.lastMessage
self.obser.pairLastMessagesDate[friend.pairUid] = uiViewController.lastMessageDate
}
}
}
}
func makeUIViewController(context: Context) -> ChatViewController {
let chatViewController = ChatViewController()
chatViewController.navigationItem.title = self.friend.name
self.navigationBarTitle(Text(self.friend.name))
chatViewController.title = self.friend.name
chatViewController.senderId = self.obser.__THIS__.Uid
chatViewController.senderDisplayName = self.obser.__THIS__.Name
chatViewController.friend = self.friend
chatViewController.messageRef = self.db.collection("pairs").document(self.friend.pairUid).collection("messages")
chatViewController.pairRef = self.db.collection("pairs").document(self.friend.pairUid).collection("typingIndicator")
chatViewController.__THIS__ = self.obser.__THIS__
let _url = URL(string: self.friend.image)!
if let data = try? Data(contentsOf: _url) {
chatViewController.friendImage = UIImage(data: data)
}
self.obser.messageListenerFlag[friend.pairUid] = false
self.obser.unreadMessageCount[friend.pairUid]? = 0
return chatViewController
}
typealias UIViewControllerType = ChatViewController
}
and what I want to do is when getting into ChatView
I want add some text (friend's name) in the orange block (in the picture)
I already try to add .navigationTitle on cells page, but it doesn't work
also I try to modify viewcontroller's title, but it doesn't work too
how could I do?
Before I answer to your question, sorry for doing without any test. It's just based on my assumption.
Set chatViewController.navigationItem.title = self.friend.name instead of call navigationBarTitle of the SwiftUI view.
I think the pushed view is not normal SwiftUI but UIKit view view so you should handle it in UIKit manner.