Trying to show fetched firebase data on profile view SwiftUI - firebase

Question

I'm trying to show the data I fetched from my Firebase database. I tried creating #State var variables and add them to my function but it didn't work. I tried printing my function output in a button to print it to console and it works. I just don't know how to show them in my view my code
import SwiftUI
import Firebase
struct ProfileView: View {
var body: some View {
VStack {
Button(action: {
profilef()
}) {
Text("hello")
}
HStack {
Button(action: {
try! Auth.auth().signOut()
UserDefaults.standard.set(false, forKey: "status")
NotificationCenter.default.post(name: NSNotification.Name("statusChange"), object: nil)
}) {
Text("Logout")
}
}
}
}
func profilef() {
let userID = Auth.auth().currentUser?.uid
let ref = Database.database().reference()
ref.child("UserInfo").child(userID!).observeSingleEvent(of: .value, with: { (snapshot) in
// Get user value
let value = snapshot.value as? [String : AnyObject]
let name = value?["fullName"] as? String ?? ""
print(name)
// ...
}) { error in
print(error.localizedDescription)
}
}
}

Answer 1

Just create a #State variable, which contains the name. If your function changes that variable, your view will updates.
struct profile: View {
#State var name : String = ""
var body: some View {
Text("Hello " + self.name)
And then in your function, instead of printing you will assign it to your state.
let name = value?["fullName"] as? String ?? ""
print(name)
self.name = name
That should work. I do not have an example with Firebase at the moment, so I can not test it. If it is not working, please describe the behavior.

Answer 2

Adding an #State property profileName and assigning it in the network request function will work after tapping the Button.
// ProfileView.swift
//
//
// Created by Shahin Bararesh on 2020-09-07.
//
import SwiftUI
import Firebase
struct ProfileView: View {
#State var profileName: String = ""
var body: some View {
VStack {
Button(action: {
profilef()
}) {
Text(profileName)
}
HStack {
Button(action: {
try! Auth.auth().signOut()
UserDefaults.standard.set(false, forKey: "status")
NotificationCenter.default.post(name: NSNotification.Name("statusChange"), object: nil)
}) {
Text("Logout")
}
}
}
}
func profilef() {
let userID = Auth.auth().currentUser?.uid
let ref = Database.database().reference()
ref.child("UserInfo").child(userID!).observeSingleEvent(of: .value, with: { (snapshot) in
// Get user value
let value = snapshot.value as? [String : AnyObject]
let name = value?["fullName"] as? String ?? ""
self.profileName = name
// ...
}) { error in
print(error.localizedDescription)
}
}
}