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import 'dart:convert';
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import 'package:intl/intl.dart';
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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 inchesController = TextEditingController();
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TextEditingController cmsController = TextEditingController();
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TextEditingController weightController = TextEditingController();
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TextEditingController ageController = TextEditingController();
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TextEditingController dateInput = 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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];
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var heightUnits = 'feet';
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var weightUnitItems = [
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'kg',
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];
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var weightUnits = 'kg';
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@override
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void initState() {
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ageController.text=AppSettings.age;
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super.initState();
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}
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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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keyboardType: TextInputType.number,
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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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suffixText: "Yrs",
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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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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: 'Select Height 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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SizedBox(height: 10),
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Visibility(
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visible:heightUnits=='feet',
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child: 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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keyboardType: TextInputType.number,
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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: 'Feets',
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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: TextFormField(
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cursorColor: greyColor,
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controller: inchesController,
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textCapitalization: TextCapitalization.characters,
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keyboardType: TextInputType.number,
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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: 'Inches',
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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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],
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),
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),),
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Visibility(
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visible:heightUnits=='cm',
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child: 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: cmsController,
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textCapitalization: TextCapitalization.characters,
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keyboardType: TextInputType.number,
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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: 'Enter height in cms',
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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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],
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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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keyboardType: TextInputType.number,
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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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Container(
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child: TextFormField(
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cursorColor: greyColor,
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controller: dateInput,
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decoration: textFormFieldDecorationBMI(
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Icons.calendar_today, 'Enter Date'),
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readOnly: true,
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onTap: () async {
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DateTime? pickedDate = await showDatePicker(
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context: context,
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initialDate: DateTime.now(),
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firstDate: DateTime(1950),
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lastDate: DateTime.now(),
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builder: (BuildContext context, Widget? child) {
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return Theme(
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data: ThemeData.dark().copyWith(
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colorScheme: ColorScheme.dark(
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primary: buttonColors,
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onPrimary: Colors.white,
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surface: buttonColors,
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onSurface: Colors.white,
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),
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dialogBackgroundColor: primaryColor,
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),
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child: child!,
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);
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},
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);
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if (pickedDate != null) {
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print(
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pickedDate); //pickedDate output format => 2021-03-10 00:00:00.000
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String formattedDate =
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DateFormat('dd-MM-yyyy').format(pickedDate);
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print(
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formattedDate); //formatted date output using intl package => 2021-03-16
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setState(() {
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dateInput.text =
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formattedDate; //set output date to TextField value.
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});
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} else {}
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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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width: double.infinity,
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height:
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MediaQuery.of(context).size.height * .05,
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child: ElevatedButton(
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style: ElevatedButton.styleFrom(
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primary: buttonColors, // background
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onPrimary: Colors.black, // foreground
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),
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onPressed: () async {
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if (ageController.text != '' &&
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heightController.text != '' ||cmsController.text!=''&&
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weightController.text != ''&&dateInput.text!='') {
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AppSettings.preLoaderDialog(context);
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var payload = new Map<String, dynamic>();
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if(heightUnits.toString().toLowerCase()=='feet'){
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cmsController.text='';
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}
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else{
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heightController.text='';
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inchesController.text='';
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}
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payload["age"] = int.parse(ageController.text.toString());
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payload["feet"] = heightController.text.toString();
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payload["inches"] = inchesController.text.toString();
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payload["height"] = cmsController.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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payload["date"] = dateInput.text.toString();
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try{
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var value = await AppSettings.calculateBmi(payload);
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var valueResponse = jsonDecode(value);
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Navigator.of(context, rootNavigator: true).pop();
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heightController.clear();
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cmsController.clear();
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inchesController.clear();
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weightController.clear();
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dateInput.clear();
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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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catch(e){
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Navigator.of(context, rootNavigator: true).pop();
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AppSettings.longFailedToast('Calculating BMI failed');
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}
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}
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else{
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AppSettings.longFailedToast('Please enter valid details');
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}
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},
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child: const Text('Calculate BMI'),
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)),
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SizedBox(height: 20),
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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',style: TextStyle(fontSize:15,fontWeight: FontWeight.bold),),
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SizedBox(width: 10,),
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Text(bmiText,style: TextStyle(color: Colors.red,fontWeight: FontWeight.bold)),
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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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|
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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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|
|
],
|
|
|
),
|
|
|
)
|
|
|
),
|
|
|
)
|
|
|
);
|
|
|
}
|
|
|
}
|
