Interaksi Button dengan Aplikasi Dice Roller

 Alif Adrian Anzary - 5025201274

Pada tugas ke-4 kali ini kita akan belajar tutorial penggunaan komponen button dalam aplikasi android yang interaktif menggunakan Jetpack Compose. Aplikasi yang akan dibangun berupa Aplikasi Android interaktif bernama Dice Roller yang memungkinkan pengguna melempar dadu dan menampilkan hasil lemparannya.

Berikut adalah tampilan dan code yang saya gunakan :

package com.example.diceroller

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.Image
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.Button
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Surface
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableIntStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.res.painterResource
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.text.TextStyle
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import com.example.diceroller.ui.theme.DiceRollerTheme

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            DiceRollerTheme  {
                Surface (
                    modifier = Modifier.fillMaxSize(),
                    color = MaterialTheme.colorScheme.background
                ) {
                    DiceRollerApp()
                }
            }
        }
    }
}

@Preview
@Composable
fun DiceRollerApp() {
    DiceWithButtonAndImage()
}

@Composable
fun DiceWithButtonAndImage() {
    var result by remember {
        mutableIntStateOf(1)
    }
    val imageResource = when (result) {
        1 -> R.drawable.dice_1
        2 -> R.drawable.dice_2
        3 -> R.drawable.dice_3
        4 -> R.drawable.dice_4
        5 -> R.drawable.dice_5
        else -> R.drawable.dice_6
    }
    Box(
        modifier = Modifier.fillMaxSize(),
        contentAlignment = Alignment.Center
    ) {
        Column(
            horizontalAlignment = Alignment.CenterHorizontally,
            verticalArrangement = Arrangement.Center,
            modifier = Modifier.align(Alignment.Center)
        ) {
            Column(
                horizontalAlignment = Alignment.CenterHorizontally,
                verticalArrangement = Arrangement.Center
            ) {
                Image(
                    painter = painterResource(imageResource),
                    contentDescription = result.toString()
                )
                Spacer(modifier = Modifier.height(16.dp))
                Button(onClick = { result = (1..6).random() }) {
                    Text(stringResource(R.string.roll))
                }
            }
        }
        Column(
            horizontalAlignment = Alignment.CenterHorizontally,
            verticalArrangement = Arrangement.Bottom,
            modifier = Modifier.align(Alignment.BottomCenter)
        ) {
            Text(
                text = stringResource(R.string.name),
                modifier = Modifier.padding(bottom = 16.dp),
                style = TextStyle(textAlign = TextAlign.Center),
            )
        }
    }

}