Tugas 2 - Pemrograman Perangkat Bergerak G - Membuat Hello Android

Tugas 2 - Pemrograman Perangkat Bergerak G

Rakha Fathin Izzan Consetta - 5025221156

Kode

package com.example.helloworld

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.Scaffold
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.tooling.preview.Preview
import com.example.helloworld.ui.theme.HelloworldTheme

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enableEdgeToEdge()
        setContent {
            HelloworldTheme {
                Scaffold(modifier = Modifier.fillMaxSize()) { innerPadding ->
                    Greeting(
                        name = "Android",
                        modifier = Modifier.padding(innerPadding)
                    )
                }
            }
        }
    }
}

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

@Preview(showBackground = true,  name = "Text preview - Tugas 1 PPB G - 5025221156")
@Composable
fun GreetingPreview() {
    HelloworldTheme {
        Greeting("Android")
    }
}

Semua kode diatas sudab sesuai template tutorial pada link berikut: 
Codelabs - Jetpack Compose Basics

Mari kita sorot potongan kode yang sedikit dimodifikasi

@Preview(showBackground = true,  name = "Text preview - Tugas 1 PPB G - 5025221156")
@Composable
fun GreetingPreview() {
    HelloworldTheme {
        Greeting("Android")
    }
}

• @Preview(...) menampilkan preview tampilan di Android Studio.
• showBackground = true menampilkan latar belakang dalam preview.
• name = "Text preview - Tugas 1 PPB G - 5025221156" memberi nama pada tampilan preview.
• GreetingPreview() adalah fungsi yang digunakan untuk menampilkan pratinjau Greeting.

Hasil