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package com.example.myapplication import android.os.Bundle import androidx.activity.ComponentActivity import androidx.activity.compose.setContent import androidx.compose.foundation.layout.Column import androidx.compose.material3.Text import androidx.compose.runtime.Composable import androidx.compose.ui.tooling.preview.Preview class MainActivity : ComponentActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContent { MyScreenContent() } } } @Composable fun MyScreenContent() { Column { Greeting(name = "Jetpack Compose") } } @Composable fun Greeting(name: String) { Text( text = "Hello, $name!", ) } @Preview(showBackground = true) @Composable fun DefaultPreview() { MyScreenContent() } |