A playground where I try to understand ViewBuilders

howTFDoViewBuildersWork.swift

import SwiftUI
import PlaygroundSupport

struct ContentView: View {
    @State var presses = 0
    
    var body: some View {
        VStack {
            Text("swiftui!")
                .font(.headline)
                .padding(.top)
            Divider()
            TabView {
                PushMeView(presses: $presses).tabItem {
                    Text("PushMe!")
                    Image(systemName: "1.square.fill")
                }
                
                ShowMeView(presses: presses).tabItem {
                    Text("ShowMe!")
                    Image(systemName: "2.square.fill")
                }
            }
        }
    }
}

struct WrapperView<Content: View>: View {
    let content: Content
    
    init(@ViewBuilder content: () -> Content) {
        self.content = content()
    }
    
    var body: some View {
        VStack {
            content
            .padding()
            Divider()
            /* something here like
             For each view in the content put a divider beneath it
             
             */
        }
    }
}

struct ShowMeView: View {
    var presses: Int
    var body: some View {
        WrapperView {
            Text("Pushed \(presses) times!")
            Text("Another text 2")
        }
    }
}

struct PushMeView: View {
    @Binding var presses: Int
    
    var body: some View {
        VStack {
            Text("Pushed \(presses) times!")
            Button(action: {
                self.presses += 1
            }, label: {
                Text("Push me!")
            })
        }
    }
}

PlaygroundPage.current.setLiveView(ContentView())