Introduction

Welcome to your first hands-on Swift tutorial! Today, we’re diving into variables, constants, and data types while building something useful (and hilarious) — a Fart Recorder App for iOS. This app will allow users to record, label, and play back their “masterpieces.” 🎤💨

By the end of this tutorial, you’ll understand

• How to declare and use variables (var) and constants (let)
• The difference between Strings, Integers, Doubles, and Booleans
• How to work with arrays and dictionaries
• Basic SwiftUI elements to build a simple UI

⸻

Step 1: Create a New SwiftUI Project

1. Open Xcode.
2. Select Create a new Xcode project.
3. Choose App under iOS.
4. Name it FartRecorder.
5. Select SwiftUI as the interface and Swift as the language.
6. Click Create! 🚀

⸻

Step 2: Understanding Variables and Constants

In Swift, variables (var) can change, while constants (let) cannot.

var fartCount = 0  // Variable: changes as you record farts
let maxFarts = 10   // Constant: the max number of farts you can record

Since farts are precious audio artifacts, we’ll store them in an array:

var fartCollection: [String] = []  // Array of fart sound file names

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Step 3: Designing the UI

Modify ContentView.swift to create a basic UI.

import SwiftUI
import AVFoundation

struct ContentView: View {
    @State private var fartCount = 0
    @State private var fartCollection: [String] = []
    @State private var isRecording = false
    var body: some View {
        VStack {
            Text("Fart Recorder")
                .font(.largeTitle)
                .padding()

            Button(action: recordFart) {
                Text(isRecording ? "Recording..." : "Record a Fart")
                    .padding()
                    .background(isRecording ? Color.red : Color.green)
                    .foregroundColor(.white)
                    .clipShape(Capsule())
            }

            Text("Farts Recorded: \(fartCount)")
                .font(.title)
                .padding()

            List(fartCollection, id: \..self) { fart in
                Button(fart) {
                    playFart(fartName: fart)
                }
            }
        }
    }
}

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Step 4: Implementing the Recording Logic

Recording (Pretend Mode)

Since recording farts is an art, we’ll simulate the process:

func recordFart() {
    guard fartCount < 10 else { return }  // Prevents more than 10 farts
    let fartName = "Fart_\(fartCount + 1)"
    fartCollection.append(fartName)
    fartCount += 1
    print("Saved: \(fartName)")
}

Playing the Fart Sounds

func playFart(fartName: String) {
    print("Playing \(fartName) 💨")
}

⸻

Step 5: Run and Test

1. Click Run (Cmd + R) in Xcode.
2. Tap Record a Fart (it will simulate recording).
3. Tap on a recorded fart to “play” it.
4. Keep recording until you reach 10 farts.

⸻

Next Steps

✅ You built a Fart Recorder! You now understand:
• Variables (var) and Constants (let)
• Basic Data Types: String, Int, Array
• Using SwiftUI Buttons and Lists

Coming up next: Swift Control Flow: Loops, Conditionals, and Optionals