CustomToolBar.swift

//
//  ContentView.swift
//  CustomToolBar
//
//  Created by ing.conti on 05/08/23.
//
// some stuff from nice exmple:
// https://stackoverflow.com/questions/66134755/swiftui-extract-toolbarcontent-to-its-own-var
// with some buttons and call back.

import SwiftUI

struct ContentView: View {
    // stright form xcode template, BUT add a  NavigationStack !
    var body: some View {
        NavigationStack {
            
            VStack {
                Image(systemName: "globe")
                    .imageScale(.large)
                    .foregroundStyle(.tint)
                Text("Hello, world!")
            }
            // add here.. NOT on NavigationStack!
            .toolbar{ CustomToolBarContent(t1: "Hoo", t2: "Hii", callback: doStuff ) }

        }
    }
    
    
    private func doStuff(_ index: Int){
        print(index)
    }
}


// move in appropriate file..

typealias CallBack = ( (Int)->() )?

struct CustomToolBarContent: ToolbarContent {
    
    internal init(t1: String, t2: String, callback: CallBack = nil) {
        self.t1 = t1
        self.t2 = t2
        self.callback = callback
    }
    
    private let t1: String
    private let t2: String
    private let callback: CallBack
    

    var body: some ToolbarContent {
        ToolbarItem(placement: .principal) {
            Text(t1)
        }
        ToolbarItem(placement: .navigationBarTrailing) {
            Text(t2)
        }
        
        ToolbarItem(placement: .navigationBarTrailing) {
                        Button("Do 1") {
                            callback?(1)
                        }
                    }
        
        ToolbarItem(placement: .navigationBarTrailing) {
                        Button("Do 2") {
                            callBack?(2)
                        }
                    }
        

    }
}