azamsharp

import UIKit


// Dispatch Groups

func collectAllReviewIds() {
    
    let group = DispatchGroup()
    var reviewIds: [Int] = []
    

azamsharp

//
//  ContentView.swift
//  GradientsinSwiftUI
//
//  Created by Mohammad Azam on 3/2/21.
//

import SwiftUI

struct ContentView: View {

azamsharp

# EXCEPTIONS 
# try and except go together 


try: 
    result = 1/2
    number = int(input("Enter any number: "))  # e 
except ZeroDivisionError: 
    print("Please don't divide by zero!")

azamsharp

class CustomerListScreen extends StatelessWidget {

  final customers = ["Alex", "John", "Bryan", "Jerry", "Mary"];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Customers")
      ), 

azamsharp

class CustomerList extends StatelessWidget {

  final List<String> customers; 
  final Function(String) onSelected; 

  CustomerList({@required this.customers, this.onSelected});

  @override
  Widget build(BuildContext context) {

azamsharp

class CustomerList extends StatelessWidget {

  final List<String> customers; 

  CustomerList({@required this.customers});

  @override
  Widget build(BuildContext context) {

    return ListView.builder(

azamsharp

class CustomerListScreen extends StatelessWidget {

  final customers = ["Alex", "John", "Bryan", "Jerry", "Mary"];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Customers")
      ), 

azamsharp

//
//  MainScreen.swift
//  IntroductionToSwiftUI-Workshop
//
//  Created by Mohammad Azam on 2/6/21.
//

import SwiftUI

class Settings: ObservableObject {

azamsharp

# Data Types in Python 

# String - Combination of alphanumeric characters 33AAA$%^
# Int - Numbers without decimal (whole numbers) 34, 2,1 100, 986
# Float - Numbers with decimal 5.23, 3.142, 5.0 
# Bool - YES/NO, TRUE/FALSE, 1/0, ON/OFF 

# Variables 
name = "John"
age = 34 

azamsharp

var body: some View {
        NavigationView {
            VStack {
                
                // get the selected customer
                CustomerListView(customers: customers) { (customer) in
                    selectedCustomer = customer
                }
                
                if let selectedCustomer = selectedCustomer {