Tugas Minggu 6 - PPB I

Nama    : Tegar Ganang Satrio Priambodo

NRP       : 5025201002

Kelas     : PPB I

Memahami Bahasa Kotlin untuk Pengembangan Aplikasi Android

Pada pertemuan kali ini, saya akan membuat project kalkulator sederhana dengan bahasa Kotlin. Cara kerja kalkulator ini adalah pengguna dapat mengisi angka pada dua kolom. Kemudian pengguna bisa memilih operasi apa saja yang diinginkan. Hasil akan muncul berupa allert yang menunjukkan hasil kalkulasi tiap operasi yang di interaksikan.

berikut adalah code pengerjaan

	package com.example.mycalculator
	import android.os.Bundle
	import android.widget.Toast
	import androidx.activity.ComponentActivity
	import androidx.activity.compose.setContent
	import androidx.compose.foundation.layout.Arrangement
	import androidx.compose.foundation.layout.Column
	import androidx.compose.foundation.layout.Row
	import androidx.compose.foundation.layout.Spacer
	import androidx.compose.foundation.layout.fillMaxSize
	import androidx.compose.foundation.layout.fillMaxWidth
	import androidx.compose.foundation.layout.width
	import androidx.compose.material3.Button
	import androidx.compose.material3.Text
	import androidx.compose.material3.TextField
	import androidx.compose.runtime.Composable
	import androidx.compose.runtime.getValue
	import androidx.compose.runtime.mutableStateOf
	import androidx.compose.runtime.remember
	import androidx.compose.runtime.setValue
	import androidx.compose.ui.Modifier
	import androidx.compose.ui.platform.LocalContext
	import androidx.compose.ui.unit.dp
	class MainActivity : ComponentActivity() {
	override fun onCreate(savedInstanceState: Bundle?) {
	super.onCreate(savedInstanceState)
	setContent {
	SimpleCalculator()
	}
	}
	}
	@Composable
	fun SimpleCalculator() {
	var num1 by remember {
	mutableStateOf("0")
	}
	var num2 by remember {
	mutableStateOf("0")
	}
	val context = LocalContext.current
	Column {
	TextField(
	value = num1,
	onValueChange = {
	num1 = it
	},
	modifier = Modifier.fillMaxWidth()
	)
	TextField(
	value = num2,
	onValueChange = {
	num2 = it
	},
	modifier = Modifier.fillMaxWidth()
	)
	Row(
	modifier = Modifier
	.fillMaxWidth(),
	horizontalArrangement = Arrangement.SpaceBetween
	) {
	Button(onClick = {
	val result = num1.toInt() + num2.toInt()
	Toast.makeText(context, "Result for $num1 + $num2 is $result",
	Toast.LENGTH_SHORT
	).show()
	}) {
	Text(text = "Add")
	}
	Spacer(modifier = Modifier.width(20.dp))
	Button(onClick = {
	val result = num1.toInt() - num2.toInt()
	Toast.makeText(context, "Result for $num1 - $num2 is $result",
	Toast.LENGTH_SHORT
	).show()
	}) {
	Text(text = "Sub")
	}
	Spacer(modifier = Modifier.width(20.dp))
	Button(onClick = {
	val result = num1.toInt() * num2.toInt()
	Toast.makeText(context, "Result for $num1 * $num2 is $result",
	Toast.LENGTH_SHORT
	).show()
	}) {
	Text(text = "Mul")
	}
	Spacer(modifier = Modifier.width(20.dp))
	Button(onClick = {
	val result = num1.toInt() / num2.toInt()
	Toast.makeText(context, "Result for $num1 / $num2 is $result",
	Toast.LENGTH_SHORT
	).show()
	}) {
	Text(text = "Div")
	}
	}
	}
	}

view raw MainActivity.kt hosted with ❤ by GitHub

dan berikut adalah video demo program

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