Keypad in SwiftUI.

Keypad_SwiftUI.swift

import SwiftUI

struct KeypadCell: View {
    let key: String
    
    var body: some View {
        ZStack {
            Color.primary.opacity(0.1)
                .cornerRadius(12)
            
            if key == "<" {
                Image(systemName: "delete.left.fill")
                    .font(.title2)
                    .padding()
            } else {
                Text(key)
                    .font(.title2)
                    .fontWeight(.bold)
                    .padding()
            }
        }
    }
}

struct Keypad: View {
    private let keys: [String] = ["1","2","3","4","5","6","7","8","9",".","0","<"]
    
    var body: some View {
        LazyVGrid(columns: Array(repeating: .init(.flexible()), count: 3)) {
            ForEach(keys, id: \.self) { key in
                Button(action: {
                    print("Tapped on \(key)")
                }) {
                    KeypadCell(key: key)
                }.buttonStyle(PlainButtonStyle())
            }
        }.frame(maxWidth: 320)
    }
}