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import 'dart:convert';
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import 'package:flutter/material.dart';
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import 'package:healthcare_user/BMI/bmi_history.dart';
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import 'package:healthcare_user/common/settings.dart';
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class BMICalculator extends StatefulWidget {
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const BMICalculator({Key? key}) : super(key: key);
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@override
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State<BMICalculator> createState() => _BMICalculatorState();
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}
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class _BMICalculatorState extends State<BMICalculator> {
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TextEditingController heightController = TextEditingController();
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TextEditingController weightController = TextEditingController();
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TextEditingController ageController = TextEditingController();
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String bmiValue = '';
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String bmiText = '';
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var heightUnitItems = [
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'feet',
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'cm',
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'inches',
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];
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var heightUnits = 'feet';
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var weightUnitItems = [
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'kg',
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'gr',
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];
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var weightUnits = 'kg';
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppSettings.appBar('Calculate BMI'),
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body: SingleChildScrollView(
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child: Container(
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child: Padding(
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padding: EdgeInsets.all(10),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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mainAxisAlignment: MainAxisAlignment.start,
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children: [
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TextFormField(
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cursorColor: greyColor,
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controller: ageController,
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textCapitalization: TextCapitalization.characters,
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decoration: const InputDecoration(
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prefixIcon: Icon(
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Icons.person,
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color: primaryColor,
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),
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border: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor)),
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focusedBorder: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor),
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),
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enabledBorder: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor),
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),
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labelText: 'Age',
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labelStyle: TextStyle(
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color: greyColor, //<-- SEE HERE
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),
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),
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),
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SizedBox(height: 10),
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Container(
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//height: 60,
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child: Row(
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children: [
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Expanded(
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child: TextFormField(
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cursorColor: greyColor,
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controller: heightController,
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textCapitalization: TextCapitalization.characters,
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decoration: const InputDecoration(
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prefixIcon: Icon(
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Icons.height,
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color: primaryColor,
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),
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border: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor)),
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focusedBorder: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor),
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),
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enabledBorder: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor),
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),
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labelText: 'Height',
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labelStyle: TextStyle(
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color: greyColor, //<-- SEE HERE
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),
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),
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),
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),
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SizedBox(width: 5),
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Expanded(
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child: DropdownButtonFormField(
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// Initial Value
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value: heightUnits,
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isExpanded: true,
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decoration: const InputDecoration(
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prefixIcon: Icon(
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Icons.ac_unit_outlined,
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color: primaryColor,
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),
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border: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor)),
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focusedBorder: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor),
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),
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enabledBorder: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor),
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),
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labelText: 'Units',
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labelStyle: TextStyle(
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color: greyColor, //<-- SEE HERE
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),
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),
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hint: Text('Units'),
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// Down Arrow Icon
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//icon: const Icon(Icons.keyboard_arrow_down),
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// Array list of items
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items: heightUnitItems.map((String items) {
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return DropdownMenuItem(
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value: items,
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child: Text(
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items,
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style: TextStyle(
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fontSize: 16,
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),
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textAlign: TextAlign.center,
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));
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}).toList(),
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// After selecting the desired option,it will
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// change button value to selected value
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onChanged: (String? newValue) {
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setState(() {
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heightUnits = newValue!;
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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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),
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SizedBox(height: 10),
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Container(
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//height: 40,
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padding: const EdgeInsets.fromLTRB(0, 0, 0, 0),
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child: Row(
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children: [
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Expanded(
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child: TextFormField(
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cursorColor: greyColor,
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controller: weightController,
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textCapitalization: TextCapitalization.characters,
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decoration: const InputDecoration(
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prefixIcon: Icon(
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Icons.line_weight_outlined,
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color: primaryColor,
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),
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border: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor)),
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focusedBorder: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor),
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),
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enabledBorder: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor),
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),
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labelText: 'Weight',
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labelStyle: TextStyle(
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color: greyColor, //<-- SEE HERE
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),
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),
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),
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),
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SizedBox(width: 5),
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Expanded(
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child: DropdownButtonFormField(
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// Initial Value
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value: weightUnits,
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isExpanded: true,
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decoration: const InputDecoration(
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prefixIcon: Icon(
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Icons.ac_unit_outlined,
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color: primaryColor,
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),
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border: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor)),
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focusedBorder: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor),
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),
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enabledBorder: OutlineInputBorder(
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borderSide: BorderSide(color: primaryColor),
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),
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labelText: 'Units',
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labelStyle: TextStyle(
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color: greyColor, //<-- SEE HERE
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),
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),
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hint: Text('Units'),
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// Down Arrow Icon
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//icon: const Icon(Icons.keyboard_arrow_down),
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// Array list of items
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items: weightUnitItems.map((String items) {
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return DropdownMenuItem(
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value: items,
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child: Text(
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items,
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style: TextStyle(
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fontSize: 16,
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),
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textAlign: TextAlign.center,
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));
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}).toList(),
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// After selecting the desired option,it will
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// change button value to selected value
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onChanged: (String? newValue) {
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setState(() {
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weightUnits = newValue!;
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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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),
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SizedBox(height: 10),
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TextButton(
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child: Text('Calculate BMI', style: textButtonStyle()),
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onPressed: () async {
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if (ageController.text != '' &&
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heightController.text != '' &&
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weightController.text != '') {
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var payload = new Map<String, dynamic>();
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payload["age"] =
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int.parse(ageController.text.toString());
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payload["height"] = heightController.text.toString();
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payload["weight"] = weightController.text.toString();
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payload["heightUnit"] = heightUnits.toString();
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payload["weightUnit"] = weightUnits.toString();
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var value = await AppSettings.calculateBmi(payload);
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var valueResponse = jsonDecode(value);
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print(valueResponse);
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setState(() {
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bmiValue = valueResponse['userDetails']['bmivalue'].toString();
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if(double.parse(bmiValue)<18.5){
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bmiText='Underweight';
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}
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else if(double.parse(bmiValue)>=18.5&&double.parse(bmiValue)<=24.9){
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bmiText='Normal weight';
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}
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else if(double.parse(bmiValue)>=25&&double.parse(bmiValue)<=29.9){
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bmiText='Overweight';
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}
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else if(double.parse(bmiValue)>=30){
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bmiText='Obesity';
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}
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});
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}
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},
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),
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SizedBox(height: 10),
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Container(
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child: Row(
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children: [
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Text('Your Bmi value: $bmiValue'),
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SizedBox(width: 10,),
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Text(bmiText,style: TextStyle(color: Colors.red)),
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],
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)
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),
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SizedBox(height: 30),
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Container(
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child: Text('Underweight = <18.5',style: bmiTextStyle(),),
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),
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SizedBox(height: 10),
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Container(
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child: Text('Normal weight = 18.5–24.9',style: bmiTextStyle()),
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),
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SizedBox(height: 10),
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Container(
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child: Text('Overweight = 25–29.9',style: bmiTextStyle()),
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),
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SizedBox(height: 10),
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Container(
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child: Text('Obesity = BMI of 30 or greater',style: bmiTextStyle()),
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),
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SizedBox(height: 20),
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IconButton(
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onPressed: () {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => BMIHistory()),
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);
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},
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icon: Icon(
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Icons.history,
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color: primaryColor,
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size: 40,
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),
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),
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SizedBox(height: 10),
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Padding(padding: EdgeInsets.fromLTRB(10,0,0,0),
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child: Container(
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child: Text('History',style:TextStyle(color:Colors.black,fontSize: 12,fontWeight: FontWeight.bold,)),
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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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);
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}
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}
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