Creating a TabView that responds to horizontal swipe gestures to change tabs

SwipeableTabView.ContentView.swift

//
//  ContentView.swift
//  SwipeableTabView
//
//  Created by Patricio Lankenau on 5/8/20.
//  This is free and unencumbered software released into the public domain.
//

import SwiftUI

struct ContentView: View {
    @State private var selectedTab = 0
    
    let numTabs = 2
    let minDragTranslationForSwipe: CGFloat = 50
    
    var body: some View {
        TabView(selection: $selectedTab){
            NavigationView{
                Text("Hello, World!")
            }.tabItem {
                Image(systemName: "house")
                Text("Home")
            }.tag(0)
             .highPriorityGesture(DragGesture().onEnded({
                 self.handleSwipe(translation: $0.translation.width)
             }))
            NavigationView{
                Text("Salut, tout le monde!")
            }.tabItem {
                Image(systemName: "timelapse")
                Text("Space")
            }.tag(1)
             .highPriorityGesture(DragGesture().onEnded({
                 self.handleSwipe(translation: $0.translation.width)
             }))
        }
    }
    
    private func handleSwipe(translation: CGFloat) {
        if translation > minDragTranslationForSwipe && selectedTab > 0 {
            selectedTab -= 1
        } else  if translation < -minDragTranslationForSwipe && selectedTab < numTabs-1 {
            selectedTab += 1
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}