RenderCounterModifier

RenderCounterModifier.swift

/**
USAGE

someView.renderCounter()
*/

import SwiftUI

struct RenderCounterModifier: ViewModifier {
    @State private var renderCount: Int = 0

    func body(content: Content) -> some View {
        content
            .onAppear {
                renderCount += 1
            }
            .overlay(
                Text("Rendered: \(renderCount)")
                    .font(.system(size: 10))
                    .foregroundColor(.red)
                    .padding(4)
                    .background(Color.white.opacity(0.8))
                    .cornerRadius(5)
                    .padding(4),
                alignment: .topTrailing
            )
    }
}

extension View {
    func renderCounter() -> some View {
        self.modifier(RenderCounterModifier())
    }
}