Tugas 4 PPB D
Nama : Charles
NRP : 5025211082
Tugas ini dikerjakan sesuai dengan referensi yang diberikan yakni https://developer.android.com/codelabs/basic-android-kotlin-compose-build-a-dice-roller-app?hl=id#8. Pada tugas ini diminta untuk membuat aplikasi dice roller sederhana. Untuk hasilnya sendiri setelah mengikuti tutorialnya adalah sebagai berikut.
package com.example.diceroller
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.diceroller.ui.theme.DiceRollerTheme
import androidx.compose.foundation.layout.Column
import androidx.compose.ui.Alignment
import androidx.compose.material3.Button
import androidx.compose.ui.res.stringResource
import androidx.compose.foundation.Image
import androidx.compose.ui.res.painterResource
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.Spacer
import androidx.compose.ui.unit.dp
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.wrapContentSize
import androidx.compose.runtime.getValue
import androidx.compose.runtime.setValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContent {
DiceRollerTheme {
DiceRollerApp()
}
}
}
}
@Preview
@Composable
fun DiceRollerApp() {
DiceWithButtonAndImage(modifier = Modifier
.fillMaxSize()
.wrapContentSize(Alignment.Center)
)
}
@Composable
fun DiceWithButtonAndImage(modifier: Modifier = Modifier) {
var result by remember { mutableStateOf(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
}
Column(
modifier = modifier,
horizontalAlignment = Alignment.CenterHorizontally
) {
Image(
painter = painterResource(imageResource),
contentDescription = result.toString()
)
Spacer(modifier = Modifier.height(16.dp))
Button(onClick = { result = (1..6).random() }) {
Text(stringResource(R.string.roll))
}
}
}
Kemudian berikut dilakukan sedikit modifikasi dengan menambahkan background image dan juga menampilkan nomor yang didapatkan.
package com.example.diceroller
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.diceroller.ui.theme.DiceRollerTheme
import androidx.compose.foundation.layout.Column
import androidx.compose.ui.Alignment
import androidx.compose.material3.Button
import androidx.compose.ui.res.stringResource
import androidx.compose.foundation.Image
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.Box
import androidx.compose.ui.res.painterResource
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.Spacer
import androidx.compose.ui.unit.dp
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.wrapContentSize
import androidx.compose.material3.ButtonDefaults
import androidx.compose.runtime.getValue
import androidx.compose.runtime.setValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.layout.ContentScale
class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContent {
DiceRollerTheme {
DiceRollerApp()
}
}
}
}
@Preview
@Composable
fun DiceRollerApp() {
DiceWithButtonAndImage(modifier = Modifier
.fillMaxSize()
.wrapContentSize(Alignment.Center)
)
}
@Composable
fun DiceWithButtonAndImage(modifier: Modifier = Modifier) {
var result by remember { mutableStateOf(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()
) {
Image(
painter = painterResource(R.drawable.background_image), // Add your image in res/drawable
contentDescription = "Background",
contentScale = ContentScale.Crop,
modifier = Modifier.fillMaxSize()
)
Column(
modifier = modifier,
horizontalAlignment = Alignment.CenterHorizontally
) {
Box(
modifier = Modifier
.background(Color.Blue)
.padding(8.dp)
) {
Text(
text = "Rolled: $result",
color = Color.White
)
}
Image(
painter = painterResource(imageResource),
contentDescription = result.toString()
)
Spacer(modifier = Modifier.height(16.dp))
Button(
onClick = { result = (1..6).random() },
colors = ButtonDefaults.buttonColors(containerColor = Color.Red) // Button color changed
) {
Text(stringResource(R.string.roll), color = Color.White)
}
}
}
}
Link Presentasi : https://youtu.be/1kF1aCWYS9A
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