Penyesuaian Warna ketika Tema Terang dan Penambahan Fitur Validasi Input
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/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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UTS - BMI Calculator Project
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Nama : Raihan Ariq Muzakki
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NPM : 202310715297
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Kelas : F5A5
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*/
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/*
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UTS - BMI Calculator Project
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Nama : Raihan Ariq Muzakki
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NPM : 202310715297
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Kelas : F5A5
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*/
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package com.example.bmicalculator
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package com.example.bmicalculator
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import android.os.Bundle
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import androidx.activity.ComponentActivity
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import androidx.activity.compose.setContent
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import androidx.activity.enableEdgeToEdge
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import androidx.annotation.DrawableRes
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import androidx.annotation.StringRes
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import androidx.compose.foundation.Image
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import androidx.compose.foundation.layout.Arrangement
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import androidx.compose.foundation.layout.Column
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import androidx.compose.foundation.layout.Row
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import androidx.compose.foundation.layout.Spacer
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import androidx.compose.foundation.layout.fillMaxSize
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import androidx.compose.foundation.layout.fillMaxWidth
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import androidx.compose.foundation.layout.height
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import androidx.compose.foundation.layout.padding
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import androidx.compose.foundation.layout.safeDrawingPadding
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import androidx.compose.foundation.layout.size
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import androidx.compose.foundation.layout.statusBarsPadding
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import androidx.compose.foundation.layout.width
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import androidx.compose.foundation.layout.wrapContentWidth
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import androidx.compose.foundation.rememberScrollState
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import androidx.compose.foundation.text.KeyboardOptions
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import androidx.compose.foundation.verticalScroll
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import androidx.compose.material3.Button
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import androidx.compose.material3.Icon
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import androidx.compose.material3.MaterialTheme
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import androidx.compose.material3.Surface
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import androidx.compose.material3.Switch
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import androidx.compose.material3.Text
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import androidx.compose.material3.TextField
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.LaunchedEffect
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import androidx.compose.runtime.getValue
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import androidx.compose.runtime.mutableStateOf
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import androidx.compose.runtime.remember
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import androidx.compose.runtime.setValue
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.res.painterResource
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import androidx.compose.ui.res.stringResource
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import androidx.compose.ui.text.font.FontWeight
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import androidx.compose.ui.text.input.ImeAction
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import androidx.compose.ui.text.input.KeyboardType
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import androidx.compose.ui.text.style.TextAlign
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import androidx.compose.ui.tooling.preview.Preview
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import androidx.compose.ui.unit.dp
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import com.example.bmicalculator.ui.theme.BMICalculatorTheme
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import java.text.DecimalFormat
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import kotlin.math.pow
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import android.os.Bundle
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import androidx.activity.ComponentActivity
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import androidx.activity.compose.setContent
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import androidx.activity.enableEdgeToEdge
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import androidx.annotation.DrawableRes
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import androidx.annotation.StringRes
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import androidx.compose.foundation.Image
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import androidx.compose.foundation.layout.Arrangement
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import androidx.compose.foundation.layout.Column
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import androidx.compose.foundation.layout.Row
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import androidx.compose.foundation.layout.Spacer
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import androidx.compose.foundation.layout.fillMaxSize
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import androidx.compose.foundation.layout.fillMaxWidth
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import androidx.compose.foundation.layout.height
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import androidx.compose.foundation.layout.padding
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import androidx.compose.foundation.layout.safeDrawingPadding
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import androidx.compose.foundation.layout.size
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import androidx.compose.foundation.layout.statusBarsPadding
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import androidx.compose.foundation.layout.width
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import androidx.compose.foundation.layout.wrapContentWidth
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import androidx.compose.foundation.rememberScrollState
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import androidx.compose.foundation.text.KeyboardOptions
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import androidx.compose.foundation.verticalScroll
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import androidx.compose.material3.Button
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import androidx.compose.material3.Icon
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import androidx.compose.material3.MaterialTheme
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import androidx.compose.material3.Surface
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import androidx.compose.material3.Switch
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import androidx.compose.material3.Text
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import androidx.compose.material3.TextField
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.LaunchedEffect
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import androidx.compose.runtime.getValue
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import androidx.compose.runtime.mutableStateOf
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import androidx.compose.runtime.remember
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import androidx.compose.runtime.setValue
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.res.painterResource
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import androidx.compose.ui.res.stringResource
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import androidx.compose.ui.text.font.FontWeight
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import androidx.compose.ui.text.input.ImeAction
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import androidx.compose.ui.text.input.KeyboardType
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import androidx.compose.ui.text.style.TextAlign
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import androidx.compose.ui.tooling.preview.Preview
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import androidx.compose.ui.unit.dp
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import com.example.bmicalculator.ui.theme.BMICalculatorTheme
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import java.text.DecimalFormat
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import kotlin.math.pow
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class MainActivity : ComponentActivity() {
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override fun onCreate(savedInstanceState: Bundle?) {
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enableEdgeToEdge()
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super.onCreate(savedInstanceState)
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setContent {
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BMICalculatorTheme {
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Surface(
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modifier = Modifier.fillMaxSize(),
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) {
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BMICalculatorLayout()
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class MainActivity : ComponentActivity() {
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override fun onCreate(savedInstanceState: Bundle?) {
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enableEdgeToEdge()
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super.onCreate(savedInstanceState)
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setContent {
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BMICalculatorTheme {
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Surface(
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modifier = Modifier.fillMaxSize(),
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) {
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BMICalculatorLayout()
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}
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}
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}
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}
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}
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}
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// Tata letak Tampilan Aplikasi
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@Composable
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fun BMICalculatorLayout() {
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var heightInput by remember { mutableStateOf("") }
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var weightInput by remember { mutableStateOf("") }
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var unitUSC by remember { mutableStateOf(false) }
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// Tata letak Tampilan Aplikasi
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@Composable
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fun BMICalculatorLayout() {
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var heightInput by remember { mutableStateOf("") }
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var weightInput by remember { mutableStateOf("") }
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var unitUSC by remember { mutableStateOf(false) }
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var errorMessage by remember { mutableStateOf("") }
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// State baru untuk mengontrol kapan output ditampilkan
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var showResult by remember { mutableStateOf(false) }
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// State baru untuk mengontrol kapan output ditampilkan
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var showResult by remember { mutableStateOf(false) }
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// Reset nilai input ketika unit berubah
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LaunchedEffect(unitUSC) {
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heightInput = ""
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weightInput = ""
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showResult = false
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}
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// Reset nilai input ketika unit berubah
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LaunchedEffect(unitUSC) {
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heightInput = ""
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weightInput = ""
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showResult = false
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errorMessage = ""
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}
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val bmiHeight = heightInput.toDoubleOrNull() ?: 0.0
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val bmiWeight = weightInput.toDoubleOrNull() ?: 0.0
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val bmi = calculateBMI(bmiHeight, bmiWeight, unitUSC)
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val category = calculateBMICategory(bmi)
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val bmiHeight = heightInput.toDoubleOrNull() ?: 0.0
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val bmiWeight = weightInput.toDoubleOrNull() ?: 0.0
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val bmi = calculateBMI(bmiHeight, bmiWeight, unitUSC)
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val category = calculateBMICategory(bmi)
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Column(
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modifier = Modifier
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.statusBarsPadding()
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.padding(horizontal = 40.dp)
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.verticalScroll(rememberScrollState())
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.safeDrawingPadding(),
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horizontalAlignment = Alignment.CenterHorizontally
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) {
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Image(
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painter = painterResource(R.drawable.health_report),
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contentDescription = "BMI Icon",
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Column(
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modifier = Modifier
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.padding(top = 24.dp, bottom = 16.dp)
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.size(80.dp)
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)
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Text(
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text = stringResource(R.string.calculate_bmi),
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style = MaterialTheme.typography.headlineLarge.copy(fontWeight = FontWeight.Bold),
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textAlign = TextAlign.Center,
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modifier = Modifier
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.fillMaxWidth()
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.padding(bottom = 32.dp)
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)
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EditNumberField(
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label = if (unitUSC) R.string.heightInch else R.string.heightCm,
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leadingIcon = R.drawable.number,
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keyboardOptions = KeyboardOptions.Default.copy(
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keyboardType = KeyboardType.Number,
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imeAction = ImeAction.Next
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),
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value = heightInput,
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onValueChanged = { heightInput = it },
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modifier = Modifier
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.padding(bottom = 32.dp)
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.fillMaxWidth()
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)
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EditNumberField(
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label = if (unitUSC) R.string.weightPound else R.string.weightKg,
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leadingIcon = R.drawable.number,
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keyboardOptions = KeyboardOptions.Default.copy(
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keyboardType = KeyboardType.Number,
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imeAction = ImeAction.Done
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),
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value = weightInput,
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onValueChanged = { weightInput = it },
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modifier = Modifier
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.padding(bottom = 32.dp)
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.fillMaxWidth()
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)
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UnitUSCFormulaRow(
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unitUSC = unitUSC,
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onUSCChanged = { unitUSC = it },
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modifier = Modifier.padding(bottom = 24.dp)
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)
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// Button Kalkulasi dan Clear Field Text
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Row(
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modifier = Modifier.fillMaxWidth(),
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horizontalArrangement = Arrangement.SpaceBetween
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.statusBarsPadding()
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.padding(horizontal = 40.dp)
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.verticalScroll(rememberScrollState())
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.safeDrawingPadding(),
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horizontalAlignment = Alignment.CenterHorizontally
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) {
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Button(
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onClick = {
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showResult = true
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},
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modifier = Modifier.weight(1f)
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) {
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Text("Calculate")
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}
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Spacer(modifier = Modifier.width(16.dp))
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Button(
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onClick = {
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heightInput = ""
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weightInput = ""
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showResult = false
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},
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modifier = Modifier.weight(1f)
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) {
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Text("Clear")
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}
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}
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Spacer(modifier = Modifier.height(32.dp))
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if (showResult) {
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Text(
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text = "BMI: $bmi",
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style = MaterialTheme.typography.displaySmall,
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textAlign = TextAlign.Center,
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fontWeight = FontWeight.SemiBold,
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modifier = Modifier.fillMaxWidth()
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Image(
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painter = painterResource(R.drawable.health_report),
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contentDescription = "BMI Icon",
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modifier = Modifier
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.padding(top = 24.dp, bottom = 16.dp)
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.size(80.dp)
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)
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Text(
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text = category,
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style = MaterialTheme.typography.displayMedium,
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text = stringResource(R.string.calculate_bmi),
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style = MaterialTheme.typography.headlineLarge.copy(fontWeight = FontWeight.Bold),
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textAlign = TextAlign.Center,
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fontWeight = FontWeight.ExtraBold,
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modifier = Modifier.fillMaxWidth()
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modifier = Modifier
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.fillMaxWidth()
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.padding(bottom = 32.dp)
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)
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}
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Spacer(modifier = Modifier.height(150.dp))
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EditNumberField(
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label = if (unitUSC) R.string.heightInch else R.string.heightCm,
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leadingIcon = R.drawable.number,
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keyboardOptions = KeyboardOptions.Default.copy(
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keyboardType = KeyboardType.Number,
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imeAction = ImeAction.Next
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),
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value = heightInput,
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onValueChanged = { heightInput = it },
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modifier = Modifier
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.padding(bottom = 32.dp)
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.fillMaxWidth()
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)
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EditNumberField(
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label = if (unitUSC) R.string.weightPound else R.string.weightKg,
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leadingIcon = R.drawable.number,
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keyboardOptions = KeyboardOptions.Default.copy(
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keyboardType = KeyboardType.Number,
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imeAction = ImeAction.Done
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),
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value = weightInput,
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onValueChanged = { weightInput = it },
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modifier = Modifier
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.padding(bottom = 32.dp)
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.fillMaxWidth()
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)
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UnitUSCFormulaRow(
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unitUSC = unitUSC,
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onUSCChanged = { unitUSC = it },
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modifier = Modifier.padding(bottom = 24.dp)
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)
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// Button Kalkulasi dan Clear Field Text
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Row(
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modifier = Modifier.fillMaxWidth(),
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horizontalArrangement = Arrangement.SpaceBetween
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) {
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Button(
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onClick = {
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// Validasi angka
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if (bmiHeight == 0.0 || bmiWeight == 0.0) {
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errorMessage = "Input harus berupa angka yang valid."
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showResult = false
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return@Button
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}
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// Validasi untuk SI Units
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if (!unitUSC) {
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if (bmiHeight !in 50.0..300.0 && bmiWeight !in 20.0..500.0) {
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errorMessage =
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"Masukkan Tinggi Badan pada rentang 50-300 cm \ndan\n Berat Badan pada rentang 20-500 kg"
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showResult = false
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return@Button
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}
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else if (bmiHeight !in 50.0..300.0) {
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errorMessage = "Tinggi harus berada pada rentang 50–300 cm."
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showResult = false
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return@Button
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}
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else if (bmiWeight !in 20.0..500.0) {
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errorMessage = "Berat harus berada pada rentang 20–500 kg."
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showResult = false
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return@Button
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}
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}
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// Validasi untuk USC Units
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if (unitUSC) {
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if (bmiHeight !in 20.0..120.0 && bmiWeight !in 44.0..1100.0){
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errorMessage =
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"Masukkan Tinggi Badan pada rentang 20-120 in dan\n Berat Badan pada rentang 44-110 kg"
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showResult = false
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return@Button
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}
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else if (bmiHeight !in 20.0..120.0) {
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errorMessage = "Tinggi harus berada pada rentang 20–120 in."
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showResult = false
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return@Button
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}
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else if (bmiWeight !in 44.0..1100.0) {
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errorMessage = "Berat harus berada pada rentang 44–1100 lbs."
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showResult = false
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return@Button
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}
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}
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// Jika valid
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errorMessage = ""
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showResult = true
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},
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modifier = Modifier.weight(1f)
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) {
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Text("Calculate")
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}
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Spacer(modifier = Modifier.width(16.dp))
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Button(
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onClick = {
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heightInput = ""
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weightInput = ""
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showResult = false
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errorMessage = ""
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},
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modifier = Modifier.weight(1f)
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) {
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Text("Clear")
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}
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}
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Spacer(modifier = Modifier.height(32.dp))
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// Pesan Error
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if (errorMessage.isNotEmpty()) {
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Text(
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text = errorMessage,
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color = MaterialTheme.colorScheme.error,
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fontWeight = FontWeight.SemiBold,
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modifier = Modifier
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.padding(top = 16.dp)
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.fillMaxWidth(),
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textAlign = TextAlign.Center
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)
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}
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Spacer(modifier = Modifier.height(32.dp))
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// Output BMI
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if (showResult) {
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Text(
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text = "BMI: $bmi",
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style = MaterialTheme.typography.displaySmall,
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textAlign = TextAlign.Center,
|
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fontWeight = FontWeight.SemiBold,
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modifier = Modifier.fillMaxWidth()
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)
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|
||||
Text(
|
||||
text = category,
|
||||
style = MaterialTheme.typography.displayMedium,
|
||||
textAlign = TextAlign.Center,
|
||||
fontWeight = FontWeight.ExtraBold,
|
||||
modifier = Modifier.fillMaxWidth()
|
||||
)
|
||||
}
|
||||
|
||||
Spacer(modifier = Modifier.height(150.dp))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
// Fungsi media Input Tinggi Badan dan Berat Badan
|
||||
@Composable
|
||||
fun EditNumberField(
|
||||
@StringRes label: Int,
|
||||
@DrawableRes leadingIcon: Int,
|
||||
keyboardOptions: KeyboardOptions,
|
||||
value: String,
|
||||
onValueChanged: (String) -> Unit,
|
||||
modifier: Modifier = Modifier
|
||||
) {
|
||||
TextField(
|
||||
value = value,
|
||||
singleLine = true,
|
||||
leadingIcon = { Icon(painter = painterResource(id = leadingIcon), null) },
|
||||
modifier = modifier,
|
||||
onValueChange = onValueChanged,
|
||||
label = { Text(stringResource(label)) },
|
||||
keyboardOptions = keyboardOptions
|
||||
)
|
||||
}
|
||||
|
||||
@Composable
|
||||
fun UnitUSCFormulaRow(
|
||||
unitUSC: Boolean,
|
||||
onUSCChanged: (Boolean) -> Unit,
|
||||
modifier: Modifier = Modifier
|
||||
) {
|
||||
Row(
|
||||
modifier = modifier.fillMaxWidth(),
|
||||
verticalAlignment = Alignment.CenterVertically
|
||||
// Fungsi media Input Tinggi Badan dan Berat Badan
|
||||
@Composable
|
||||
fun EditNumberField(
|
||||
@StringRes label: Int,
|
||||
@DrawableRes leadingIcon: Int,
|
||||
keyboardOptions: KeyboardOptions,
|
||||
value: String,
|
||||
onValueChanged: (String) -> Unit,
|
||||
modifier: Modifier = Modifier
|
||||
) {
|
||||
Text(text = stringResource(R.string.use_usc), fontWeight = FontWeight.SemiBold)
|
||||
Switch(
|
||||
modifier = Modifier
|
||||
.fillMaxWidth()
|
||||
.wrapContentWidth(Alignment.End),
|
||||
checked = unitUSC,
|
||||
onCheckedChange = onUSCChanged
|
||||
TextField(
|
||||
value = value,
|
||||
singleLine = true,
|
||||
leadingIcon = { Icon(painter = painterResource(id = leadingIcon), null) },
|
||||
modifier = modifier,
|
||||
onValueChange = onValueChanged,
|
||||
label = { Text(stringResource(label)) },
|
||||
keyboardOptions = keyboardOptions
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Calculates the BMI
|
||||
* dengan Rumus SI Metrics Unit (Default)
|
||||
* dan
|
||||
* dengan Rumus USC Units
|
||||
*
|
||||
* Catatan: Unit Testing Sudah ada di src/test/java/calculateBMITest.kt
|
||||
*/
|
||||
fun calculateBMI(bmiHeight: Double, bmiWeight: Double, unitUSC: Boolean): String {
|
||||
if (bmiHeight <= 0 || bmiWeight <= 0){
|
||||
return "0.0"
|
||||
@Composable
|
||||
fun UnitUSCFormulaRow(
|
||||
unitUSC: Boolean,
|
||||
onUSCChanged: (Boolean) -> Unit,
|
||||
modifier: Modifier = Modifier
|
||||
) {
|
||||
Row(
|
||||
modifier = modifier.fillMaxWidth(),
|
||||
verticalAlignment = Alignment.CenterVertically
|
||||
) {
|
||||
Text(text = stringResource(R.string.use_usc), fontWeight = FontWeight.SemiBold)
|
||||
Switch(
|
||||
modifier = Modifier
|
||||
.fillMaxWidth()
|
||||
.wrapContentWidth(Alignment.End),
|
||||
checked = unitUSC,
|
||||
onCheckedChange = onUSCChanged
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
val heightInMeter = bmiHeight/100 // konversi centimeter ke meter
|
||||
/**
|
||||
* Calculates the BMI
|
||||
* dengan Rumus SI Metrics Unit (Default)
|
||||
* dan
|
||||
* dengan Rumus USC Units
|
||||
*
|
||||
* Catatan: Unit Testing Sudah ada di src/test/java/calculateBMITest.kt
|
||||
*/
|
||||
fun calculateBMI(bmiHeight: Double, bmiWeight: Double, unitUSC: Boolean): String {
|
||||
if (bmiHeight <= 0 || bmiWeight <= 0){
|
||||
return "0.0"
|
||||
}
|
||||
|
||||
var bmi = bmiWeight / heightInMeter.pow(2)
|
||||
if (unitUSC) {
|
||||
bmi = 703 * (bmiWeight / bmiHeight.pow(2))
|
||||
val heightInMeter = bmiHeight/100 // konversi centimeter ke meter
|
||||
|
||||
var bmi = bmiWeight / heightInMeter.pow(2)
|
||||
if (unitUSC) {
|
||||
bmi = 703 * (bmiWeight / bmiHeight.pow(2))
|
||||
}
|
||||
|
||||
val df = DecimalFormat("#.#")
|
||||
return df.format(bmi)
|
||||
}
|
||||
|
||||
val df = DecimalFormat("#.#")
|
||||
return df.format(bmi)
|
||||
}
|
||||
/**
|
||||
* Calculates the BMI Category
|
||||
* bmi < 18.5 -> Underweight
|
||||
* 18.5 <= bmi < 25 -> Normal
|
||||
* 25 <= bmi <= 30 -> Normal
|
||||
* bmi > 30 -> Overweight
|
||||
*
|
||||
* Catatan: Unit Testing Sudah ada di src/test/java/calculateBMITest.kt
|
||||
*
|
||||
*/
|
||||
fun calculateBMICategory(bmi: String): String {
|
||||
val bmiValue = bmi.replace(",", ".").toDoubleOrNull() ?: return ""
|
||||
|
||||
/**
|
||||
* Calculates the BMI Category
|
||||
* bmi < 18.5 -> Underweight
|
||||
* 18.5 <= bmi < 25 -> Normal
|
||||
* 25 <= bmi <= 30 -> Normal
|
||||
* bmi > 30 -> Overweight
|
||||
*
|
||||
* Catatan: Unit Testing Sudah ada di src/test/java/calculateBMITest.kt
|
||||
*
|
||||
*/
|
||||
fun calculateBMICategory(bmi: String): String {
|
||||
val bmiValue = bmi.replace(",", ".").toDoubleOrNull() ?: return ""
|
||||
|
||||
return when {
|
||||
bmiValue == 0.0 -> ""
|
||||
bmiValue < 18.5 -> "⚠️ Underweight"
|
||||
bmiValue < 25.0 -> "✅ Normal"
|
||||
bmiValue < 30.0 -> "⚠️ Overweight"
|
||||
else -> "‼️ Obesity"
|
||||
return when {
|
||||
bmiValue == 0.0 -> ""
|
||||
bmiValue < 18.5 -> "⚠️ Underweight"
|
||||
bmiValue < 25.0 -> "✅ Normal"
|
||||
bmiValue < 30.0 -> "⚠️ Overweight"
|
||||
else -> "‼️ Obesity"
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@Preview(showBackground = true)
|
||||
@Composable
|
||||
fun BMICalculatorLayoutPreview() {
|
||||
BMICalculatorTheme {
|
||||
BMICalculatorLayout()
|
||||
@Preview(showBackground = true)
|
||||
@Composable
|
||||
fun BMICalculatorLayoutPreview() {
|
||||
BMICalculatorTheme {
|
||||
BMICalculatorLayout()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -17,8 +17,8 @@ package com.example.bmicalculator.ui.theme
|
||||
|
||||
import androidx.compose.ui.graphics.Color
|
||||
|
||||
val md_theme_light_primary = Color(0xFFE3E2DE)
|
||||
val md_theme_light_onPrimary = Color(0xFF1351AA)
|
||||
val md_theme_light_primary = Color(0xFF1351AA) // Button
|
||||
val md_theme_light_onPrimary = Color(0xFFE3E2DE)
|
||||
val md_theme_light_primaryContainer = Color(0xFFE3E2DE)
|
||||
val md_theme_light_onPrimaryContainer = Color(0xFF1351AA)
|
||||
val md_theme_light_secondary = Color(0xFFE3E2DE)
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user