202310715130-DWI-FEBRYANTI/UTS-Dwi.Febbryanti-202310715130
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Kalkulasi BMI pada Fungsi calculateBMI()

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202310715297 RAIHAN ARIQ MUZAKKI 2025-11-06 22:05:44 +07:00
parent c69d20c1b7
commit eb0720c592
1 changed files with 26 additions and 11 deletions
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35
app/src/main/java/com/example/bmicalculator/MainActivity.kt
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@ -63,7 +63,9 @@ import androidx.compose.ui.text.input.KeyboardType
import androidx.compose.ui.tooling.preview.Preview import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp import androidx.compose.ui.unit.dp
import com.example.bmicalculator.ui.theme.BMICalculatorTheme import com.example.bmicalculator.ui.theme.BMICalculatorTheme
import java.text.DecimalFormat
import java.text.NumberFormat import java.text.NumberFormat
import kotlin.math.pow
class MainActivity : ComponentActivity() { class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) { override fun onCreate(savedInstanceState: Bundle?) {
@ -86,12 +88,12 @@ class MainActivity : ComponentActivity() {
fun BMICalculatorLayout() { fun BMICalculatorLayout() {
var heightInput by remember { mutableStateOf("") } var heightInput by remember { mutableStateOf("") }
var weightInput by remember { mutableStateOf("") } var weightInput by remember { mutableStateOf("") }
var unitUSC by remember { mutableStateOf(false) } var unitUSC by remember { mutableStateOf(false) }
val BmiHeight = heightInput.toDoubleOrNull() ?: 0.0 val BmiHeight = heightInput.toDoubleOrNull() ?: 0.0
val BmiWeight = weightInput.toDoubleOrNull() ?: 0.0 val BmiWeight = weightInput.toDoubleOrNull() ?: 0.0
val bmi = calculateBMI(BmiHeight, BmiWeight, unitUSC) val bmi = calculateBMI(BmiHeight, BmiWeight, unitUSC)
val category = calculateBMICategory(BmiHeight, BmiWeight, unitUSC) val category = calculateBMICategory(BmiHeight, BmiWeight, unitUSC)
Column( Column(
modifier = Modifier modifier = Modifier
@ -192,15 +194,28 @@ fun UnitUSCFormulaRow(
/** /**
* Calculates the BMI * Calculates the BMI
* dengan Rumus SI Metrics Unit (Default)
* dan
* dengan Rumus USC Units
* *
* Catatan: tambahkan unit test untuk kalkulasi BMI ini * Catatan: tambahkan unit test untuk kalkulasi BMI ini
*/ */
private fun calculateBMI(BmiHeight: Double, BmiWeight: Double = 15.0, unitUSC: Boolean): String { private fun calculateBMI(BmiHeight: Double, BmiWeight: Double, unitUSC: Boolean): String {
var bmi = BmiWeight / 100 * BmiHeight if (BmiHeight <= 0 || BmiWeight <= 0){
if (unitUSC) { return "0"
bmi = kotlin.math.ceil(bmi)
} }
return NumberFormat.getNumberInstance().format(bmi)
val heightInMeter = BmiHeight/100 // konversi centimeter ke meter
val heightInInch = BmiHeight * 0.3937 // konversi centimeter ke inci
val weightInPound = BmiWeight * 2.2046 // konversi berat badan ke pound (lbs)
var bmi = BmiWeight / heightInMeter.pow(2)
if (unitUSC) {
bmi = 703 * (weightInPound / heightInInch.pow(2))
}
val df = DecimalFormat("#.#")
return df.format(bmi)
} }
/** /**
* Calculates the BMI Category * Calculates the BMI Category