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Android Tutorial - Getting Started

Android Development

Android is the most popular mobile OS. Apps are built with Kotlin and Android Studio.

Main Activity

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
    }
}

Layout

<LinearLayout android:orientation="vertical">
    <TextView android:text="Hello" />
    <Button android:text="Click Me" />
</LinearLayout>

Summary

  • Kotlin is the primary Android language
  • XML layouts define the UI structure
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