📱 Android Studio Tutorial: Build Your First App

Introduction

Android Studio is the official IDE for Android development. It supports Kotlin and Java, and comes with powerful tools for designing, coding, and testing apps. In this tutorial, you’ll learn how to install Android Studio, create your first project, and run your app on an emulator or device.

1. Installing Android Studio

• Download from developer.android.com/studio
• Install the Android SDK and emulator during setup
• Ensure your system meets requirements (Windows 8+, macOS 10.14+, Linux)

2. Creating Your First Project

// Steps:
1. Open Android Studio → New Project
2. Choose "Empty Activity"
3. Name your app and select Kotlin
4. Set minimum SDK (API 21 recommended)

3. Designing Layouts

Use the Layout Editor to drag-and-drop UI elements or write XML directly. For modern apps, try Jetpack Compose:

@Composable
fun Greeting(name: String) {
    Text(text = "Hello $name!")
}

4. Writing Kotlin Code

fun greetUser(name: String): String {
    return "Hello, $name!"
}

Exercise: Display this greeting in a TextView or Compose Text component.

5. Running Your App

Use the built-in emulator or connect a physical device. Click Run ▶️ to build and launch your app.

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