Mobile App Development Environment

Android Development Environment

XML Layout

Java Logic

Kotlin Styles

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <TextView android:id="@+id/text1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Hello, Android!" /> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Click Me" android:onClick="updateText" /> </LinearLayout> package com.example; import android.app.Activity; public class MainActivity extends Activity { public void updateText() { // Simulated Java: Updates text1 element findViewById("text1").setText("Updated from Java!"); } } package com.example object Styles { fun textViewStyle() = style { textColor = "#333333" textSize = 16f padding = 8 } fun buttonStyle() = style { backgroundColor = "#28a745" textColor = "#FFFFFF" padding = 8 } }

Android Emulator