Flutter 将数据从自定义小部件文本字段传递到计算器
我试图将数据从包含文本字段的自定义小部件传递到计算器小部件。我面临的问题是，我希望利用我的自定义小部件创建多个输入，这些输入可以进入计算器（即身高和体重）。任何人都可以帮助使用自定义小部件传递数据吗 已创建自定义Textfield小部件Flutter 将数据从自定义小部件文本字段传递到计算器,flutter,dart,textfield,texteditingcontroller,Flutter,Dart,Textfield,Texteditingcontroller,我试图将数据从包含文本字段的自定义小部件传递到计算器小部件。我面临的问题是，我希望利用我的自定义小部件创建多个输入，这些输入可以进入计算器（即身高和体重）。任何人都可以帮助使用自定义小部件传递数据吗 已创建自定义Textfield小部件 import 'package:auto_size_text/auto_size_text.dart'; enum Units { unit1, unit2 } class InputRow extends StatefulWidget { InputR
import 'package:auto_size_text/auto_size_text.dart';
enum Units { unit1, unit2 }
class InputRow extends StatefulWidget {
InputRow({this.inputParameter, this.unit1, this.unit2});
final String inputParameter;
final String unit1;
final String unit2;
@override
_InputRowState createState() => _InputRowState();
}
class _InputRowState extends State<InputRow> {
String newTaskTitle;
Units selectedUnit;
String unit;
@override
void initState() {
super.initState();
setState(() {
unit = widget.unit1;
});
}
@override
Widget build(BuildContext context) {
return Container(
constraints: BoxConstraints(maxWidth: 375, maxHeight: 50),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Container(
child: AutoSizeText(
widget.inputParameter,
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 20.0,
),
),
),
Expanded(
child: Container(
decoration: BoxDecoration(
border: Border.all(
color: Colors.red,
width: 3,
),
borderRadius: BorderRadius.only(
topLeft: Radius.circular(10),
bottomLeft: Radius.circular(10),
),
),
child: TextField(
autofocus: true,
textAlign: TextAlign.center,
onChanged: (newText) {
newTaskTitle = newText;
},
),
),
),
Container(
decoration: BoxDecoration(
color: Colors.red,
border: Border.all(
color: Colors.red,
width: 3,
),
borderRadius: BorderRadius.only(
topRight: Radius.circular(10),
bottomRight: Radius.circular(10),
),
),
child: Row(
children: <Widget>[
Container(
padding: EdgeInsets.all(5),
child: Center(
child: AutoSizeText(
unit,
style: TextStyle(fontSize: 20, fontWeight: FontWeight.w500),
)),
),
Container(
constraints: BoxConstraints(maxHeight: 50, maxWidth: 60),
child: FlatButton(
highlightColor: Colors.transparent,
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Icon(
Icons.loop,
size: 25,
),
],
),
onPressed: () {
setState(() {
selectedUnit = selectedUnit == Units.unit2
? Units.unit1
: Units.unit2;
if (selectedUnit == Units.unit1) {
unit = widget.unit1;
} else {
unit = widget.unit2;
}
});
},
)),
],
),
),
],
),
);
}
}
第三轮 目标：为了能够选择三个按钮中的一个，选择的按钮将是不同的颜色（如下面的按钮2），然后我可以在单击“计算”按钮时打印按钮的标题（即按钮2） 目前，除了打印的内容外，所有内容都正常工作。我只能获取有关按钮1的信息（如果使用selected.option，则获取“option.one”；如果使用selected.title，则获取“Button1”），而不管实际选择的按钮是什么 MyButton代码
class MyButton extends ValueNotifier<Option> {
final String _title1;
final String _title2;
final String _title3;
MyButton(
{Option option = Option.one,
String title1 = 'A',
String title2 = 'B',
String title3 = 'C'})
: _title1 = title1,
_title2 = title2,
_title3 = title3,
super(option);
//You can add a get method to retrieve the title based on the option selected with a switch
String get title {
switch (value) {
case Option.one:
return _title1;
case Option.two:
return _title2;
case Option.three:
return _title3;
default:
return _title1; //or a default String, but to be honest this will never be used
}
}
Option get option => value;
set option(Option newOption) => value = newOption;
}
enum Option {
one,
two,
three,
}
class TriButton extends StatefulWidget {
TriButton(
{this.title1, this.title2, this.title3, this.triWidth, this.myButton});
final String title1;
final String title2;
final String title3;
final Constraints triWidth;
final MyButton myButton;
@override
_TriButtonState createState() => _TriButtonState();
}
class _TriButtonState extends State<TriButton> {
Option selectedOption;
@override
Widget build(BuildContext context) {
return Center(
child: Container(
constraints: widget.triWidth,
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: RectButton(
buttonChild: Text(
widget.title1,
style: TextStyle(color: Colors.white),
),
onPress: () {
setState(() {
selectedOption = Option.one;
});
},
bgColor: selectedOption == Option.one
? kActiveButtonColor
: kInactiveButtonColor,
),
),
Expanded(
child: RectButton(
buttonChild: Text(
widget.title2,
style: TextStyle(color: Colors.white),
),
onPress: () {
setState(() {
selectedOption = Option.two;
});
},
bgColor: selectedOption == Option.two
? kActiveButtonColor
: kInactiveButtonColor,
),
),
Expanded(
child: RectButton(
buttonChild: Text(
widget.title3,
style: TextStyle(color: Colors.white),
),
onPress: () {
setState(() {
selectedOption = Option.three;
});
},
bgColor: selectedOption == Option.three
? kActiveButtonColor
: kInactiveButtonColor,
),
),
],
),
),
);
}
}
class MyButton扩展了ValueNotifier{
最终字符串标题1；
最终字符串标题2；
最终字符串标题3；
我的按钮(
{Option=Option.one，
字符串标题1='A'，
字符串标题2='B'，
字符串标题3='C'}）
：title1=title1，
_title2=title2，
_title3=title3，
超级（期权）；
//您可以添加一个get方法，根据使用开关选择的选项检索标题
字符串获取标题{
开关（值）{
案例选项1：
返回标题1；
案例选择2：
返回标题2；
案例选项3：
返回标题3；
违约：
返回_title1；//或默认字符串，但老实说，这永远不会被使用
}
}
Option get Option=>value；
设置选项（选项newOption）=>value=newOption；
}
class MyButton extends ValueNotifier<Option> {
final String _title1;
final String _title2;
final String _title3;
MyButton(
{Option option = Option.one,
String title1 = 'A',
String title2 = 'B',
String title3 = 'C'})
: _title1 = title1,
_title2 = title2,
_title3 = title3,
super(option);
//You can add a get method to retrieve the title based on the option selected with a switch
String get title {
switch (value) {
case Option.one:
return _title1;
case Option.two:
return _title2;
case Option.three:
return _title3;
default:
return _title1; //or a default String, but to be honest this will never be used
}
}
Option get option => value;
set option(Option newOption) => value = newOption;
}
enum Option {
one,
two,
three,
}
class TriButton extends StatefulWidget {
TriButton(
{this.title1, this.title2, this.title3, this.triWidth, this.myButton});
final String title1;
final String title2;
final String title3;
final Constraints triWidth;
final MyButton myButton;
@override
_TriButtonState createState() => _TriButtonState();
}
class _TriButtonState extends State<TriButton> {
Option selectedOption;
@override
Widget build(BuildContext context) {
return Center(
child: Container(
constraints: widget.triWidth,
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: RectButton(
buttonChild: Text(
widget.title1,
style: TextStyle(color: Colors.white),
),
onPress: () {
setState(() {
selectedOption = Option.one;
});
},
bgColor: selectedOption == Option.one
? kActiveButtonColor
: kInactiveButtonColor,
),
),
Expanded(
child: RectButton(
buttonChild: Text(
widget.title2,
style: TextStyle(color: Colors.white),
),
onPress: () {
setState(() {
selectedOption = Option.two;
});
},
bgColor: selectedOption == Option.two
? kActiveButtonColor
: kInactiveButtonColor,
),
),
Expanded(
child: RectButton(
buttonChild: Text(
widget.title3,
style: TextStyle(color: Colors.white),
),
onPress: () {
setState(() {
selectedOption = Option.three;
});
},
bgColor: selectedOption == Option.three
? kActiveButtonColor
: kInactiveButtonColor,
),
),
],
),
),
);
}
}
enum选项{
一,，
二,，
三,，
}
类TriButton扩展了StatefulWidget{
磨坊(
{this.title1，this.title2，this.title3，this.triWidth，this.myButton}）；
最终字符串标题1；
最终字符串标题2；
最后一串标题3；
最终宽度；
最后我的按钮我的按钮；
@凌驾
_TriButtonState createState（）=>\u TriButtonState（）；
}
类_TriButtonState扩展状态{
选项选择选项；
@凌驾
小部件构建（构建上下文）{
返回中心(
子：容器(
约束条件：widget.triWidth，
孩子：排(
crossAxisAlignment:crossAxisAlignment.center，
mainAxisAlignment:mainAxisAlignment.center，
儿童：[
扩大(
子：矩形按钮(
buttonChild：文本(
小部件标题1，
样式：TextStyle（颜色：Colors.white），
),
新闻界：（）{
设置状态（）{
selectedOption=Option.one；
});
},
bgColor:selectedOption==Option.one
？kActiveButtonColor
：kInactiveButtonColor，
),
),
扩大(
子：矩形按钮(
buttonChild：文本(
小部件标题2，
样式：TextStyle（颜色：Colors.white），
),
新闻界：（）{
设置状态（）{
selectedOption=Option.two；
});
},
bgColor:selectedOption==Option.two
？kActiveButtonColor
：kInactiveButtonColor，
),
),
扩大(
子：矩形按钮(
buttonChild：文本(
标题3，
样式：TextStyle（颜色：Colors.white），
),
新闻界：（）{
设置状态（）{
selectedOption=Option.3；
});
},
bgColor:selectedOption==Option.three
？kActiveButtonColor
：kInactiveButtonColor，
),
),
],
),
),
);
}
}
class InputScreen extends StatefulWidget {
static const String id = 'adjustments';
@override
_InputScreenState createState() =>
_InputScreenState();
}
class _InputScreenState
extends State<InputScreen> {
final TextEditingController weightController = TextEditingController();
final TextEditingController heightController = TextEditingController();
final TextEditingController creatController = TextEditingController();
final MyUnit heightUnit = MyUnit();
final MyUnit weightUnit = MyUnit(imperial: 'lbs', metric: 'kg');
final MyUnit creatUnit = MyUnit(imperial: 'mg/dL', metric: 'mg/dL');
final MyButton selected = MyButton();
@override
void dispose() {
super.dispose();
weightController.dispose();
heightController.dispose();
creatController.dispose();
heightUnit.dispose();
weightUnit.dispose();
selected.dispose();
}
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Color(0xff142651),
body: Column(
children: <Widget>[
AppBar(
leading: null,
actions: <Widget>[
IconButton(
icon: Icon(Icons.close),
onPressed: () {
Navigator.pop(context);
}),
],
title: Text('Dose Adjustment'),
backgroundColor: Colors.transparent,
elevation: 0.0,
),
ValueListenableBuilder<Option>(
valueListenable: selectedAbx,
builder: (context, option, _) => TriButton(
title1: 'Button 1',
title2: 'Button 2',
title3: 'Button 3',
),
),
InputRow(
myUnit: heightUnit,
inputParameter: 'height',
textField: heightController,
colour: kOrangePantone,
),
InputRow(
myUnit: weightUnit,
inputParameter: 'weight',
textField: weightController,
colour: kRoyalPurple,
),
InputRow(
myUnit: creatUnit,
inputParameter: 'SCr',
textField: creatController,
colour: kDogwoodRose,
),
RoundedButton(
title: 'Calculate',
onPressed: () {
print(selected.option);
String inputHeight = heightController.text;
String inputWeight = weightController.text;
String inputCreat = creatController.text;
double imperialHeight = double.parse(inputHeight) * 2.54;
double metricHeight = double.parse(inputHeight);
double imperialWeight = double.parse(inputWeight) / 2.2;
double metricWeight = double.parse(inputWeight);
double creat = double.parse(inputCreat);
CalculatorTest calc;
if (heightUnit.unitType == 'cm' && weightUnit.unitType == 'kg') {
calc = CalculatorTest(
height: metricHeight,
weight: metricWeight,
creatinine: creat);
} else if (heightUnit.unitType == 'inches' &&
weightUnit.unitType == 'lbs') {
calc = CalculatorTest(
height: imperialHeight,
weight: imperialWeight,
creatinine: creat);
} else if (heightUnit.unitType == 'cm' &&
weightUnit.unitType == 'lbs') {
calc = CalculatorTest(
height: metricHeight,
weight: imperialWeight,
creatinine: creat);
} else {
heightUnit.unitType == 'inches' && weightUnit.unitType == 'kg';
calc = CalculatorTest(
height: imperialHeight,
weight: metricWeight,
creatinine: creat);
}
;
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => ResultsScreen(
bmiResult: calc.calculate(),
),
),
);
},
),
],
),
);
}
}
class InputScreen extends StatefulWidget {
static const String id = 'Input';
@override
_InputScreenState createState() =>
_InputScreenState();
}
class _InputScreenState
extends State<InputScreen> {
final TextEditingController weightController = TextEditingController();
final TextEditingController heightController = TextEditingController();
final TextEditingController creatController = TextEditingController();
final TextEditingController ageController = TextEditingController();
final MyUnit heightUnit = MyUnit();
final MyUnit weightUnit = MyUnit(imperial: 'lbs', metric: 'kg');
final MyUnit creatUnit = MyUnit(imperial: 'mg/dL', metric: 'mg/dL');
final MyUnit ageUnit = MyUnit(imperial: 'years', metric: 'years');
final MyButton selected = MyButton(title3: 'Female', title4: 'Male');
@override
void dispose() {
super.dispose();
weightController.dispose();
heightController.dispose();
creatController.dispose();
heightUnit.dispose();
weightUnit.dispose();
ageUnit.dispose();
selected.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.black,
body: Column(
children: <Widget>[
ClipPath(
clipper: MyClipper(),
child: Container(
height: 250,
width: double.infinity,
decoration: BoxDecoration(
gradient: kHeaderGradient,
image: DecorationImage(
image: AssetImage('images/virus.png'),
),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
AppBar(
leading: null,
actions: <Widget>[
IconButton(
icon: Icon(Icons.close),
onPressed: () {
Navigator.pop(context);
}),
],
title: Text(
'Creatinine Clearance',
style: kHeaderTextStyle,
),
backgroundColor: Colors.transparent,
elevation: 0.0,
),
],
),
),
),
Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
ValueListenableBuilder<Option>(
valueListenable: selected,
builder: (context, option, _) => MakeButtons(
num0: 3,
num1: 5,
makeButtonWidth: MediaQuery.of(context).size.width * 0.45,
selected: option,
onChanged: (newOption) => selected.option = newOption,
),
),
InputRow(
myUnit: heightUnit,
inputParameter: 'height',
textField: heightController,
colour: kOrangePantone,
),
InputRow(
myUnit: weightUnit,
inputParameter: 'weight',
textField: weightController,
colour: kRoyalPurple,
),
InputRow(
myUnit: creatUnit,
inputParameter: 'SCr',
textField: creatController,
colour: kDogwoodRose,
),
InputRow(
myUnit: ageUnit,
inputParameter: 'Age',
textField: ageController,
colour: kDogwoodRose,
),
RoundedButton(
title: 'Calculate',
onPressed: () {
String inputHeight = heightController.text;
String inputWeight = weightController.text;
String inputCreat = creatController.text;
String inputAge = ageController.text;
double imperialHeight = double.parse(inputHeight) * 2.54;
double metricHeight = double.parse(inputHeight);
double imperialWeight = double.parse(inputWeight) / 2.2;
double metricWeight = double.parse(inputWeight);
double creat = double.parse(inputCreat);
double age = double.parse(inputAge);
double multiplier = selected.title == 'Female' ? 0.85 : 1.0; //- code I am trying to have performed on my calculator model //
double height = heightUnit.unitType == 'cm'
? metricHeight
: imperialHeight;
double weight = weightUnit.unitType == 'cm'
? metricWeight
: imperialWeight;
double idealWeight = selected.title == 'Female'//- Code I am trying to perform on my calculator model
? (45 +
2.3 *
(heightUnit.unitType == 'cm'
? ((double.parse(inputHeight) - 152.4) / 2.54)
: (double.parse(inputHeight) - 60)))
: (50 +
2.3 *
(heightUnit.unitType == 'cm'
? ((double.parse(inputHeight) - 152.4) / 2.54)
: (double.parse(inputHeight) - 60)));
double adjustWeight = (weightUnit.unitType == 'kg'
? (double.parse(inputWeight) - idealWeight) * 0.4 +
idealWeight
: ((double.parse(inputWeight) / 2.2) - idealWeight) *
0.4 +
idealWeight);
print(weight);
print(idealWeight);
print(adjustWeight);
Calculator calc;
calc = Calculator(
height: height,
weight: weight,
creatinine: creat,
age: age,
//- right now I can only pass the data this way. If I try to do math in my calculator model, I keep getting the else result of my if statements because no value is passed before the code is run
genderMultiplier: multiplier,
ideal: idealWeight,
adjust: adjustWeight,
);
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => ResultsScreen(
Result: calc.calculate(),
idealResult: calc.calculateIdeal(),
adjustResult: calc.calculateAdjust(),
),
),
);
},
),
],
),
],
),
);
}
}
class MyClipper extends CustomClipper<Path> {
@override
Path getClip(Size size) {
var path = Path();
path.lineTo(0, size.height - 80);
path.quadraticBezierTo(
size.width / 2, size.height, size.width, size.height - 80);
path.lineTo(size.width, 0);
path.close();
return path;
}
@override
bool shouldReclip(CustomClipper<Path> oldClipper) {
return false;
}
}
class ResultsScreen extends StatelessWidget {
static const String id = 'results';
ResultsScreen({
@required this.Result,
this.idealResult,
this.adjustResult,
});
final String Result;
final String idealResult;
final String adjustResult;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('BMI CALCULATOR'),
),
body: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Container(
padding: EdgeInsets.all(15),
alignment: Alignment.bottomLeft,
child: Text(
'Your Result',
),
),
ReuseableCard(
bgColor: kGreyBackgroundColor,
cardChild: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Text(
Result,
),
Text(idealResult),
Text(adjustResult),
],
),
),
RoundedButton(
title: 'Re-Calc',
onPressed: () {
Navigator.pop(context);
},
)
],
),
);
}
}
class InputScreen扩展了StatefulWidget{
静态常量字符串id='调整'；
@凌驾
_InputScreenState createState（）=>
_InputScreenState（）；
}
类输入屏幕状态
扩展状态{
最终文本编辑控制器权重控制器=文本编辑控制器（）；
最终文本编辑控制器高度控制器=文本编辑控制器（）；
final TextEditingController creatController=TextEditingController（）；
最终MyUnit高度单位=MyUnit（）；
最终MyUnit weightUnit=MyUnit（英制：'lbs'，公制：'kg'）；
最终我的单位=我的单位（英制：“毫克/分升”，公制：“毫克/分升”）；
选择的最终MyButton=MyButton（）；
@凌驾
无效处置（）{
super.dispose（）；
weightController.dispose（）；
heightController.dispose（）；
createcontroller.dispose（）；
heightUnit.dispose（）；
weightUnit.dispose（）；
selected.dispose（）；
}
小部件构建（构建上下文）{
返回脚手架(
背景颜色：颜色（0xff142651），
正文：专栏(
儿童：[
AppBar(
前导：空，
行动：[
图标按钮(
图标：图标（Icons.close），
已按下：（）{
Navigator.pop（上下文）；
}),
],
标题：文本（“剂量调整”），
背景颜色：颜色。透明，
标高：0.0，
),
ValueListenableBuilder(
valueListenable:已选择ABX，
生成器：（上下文，选项）=>TriButton(
标题1:‘按钮1’，
标题2:‘按钮2’，
标题3:‘按钮3’，
),
),
输入(
我的单位：高度单位，
inputParameter:'高度'，
文本场：他
class InputRow extends StatefulWidget {
InputRow({this.inputParameter, this.unit1, this.unit2, this.textField});
final String inputParameter;
final String unit1;
final String unit2;
final TextEditingController textField; //Add this controller and also to the parameters of the constructor
@override
_InputRowState createState() => _InputRowState();
}
class _InputRowState extends State<InputRow> {
String newTaskTitle;
Units selectedUnit;
String unit;
@override
void initState() {
super.initState();
setState(() {
unit = widget.unit1;
});
}
@override
Widget build(BuildContext context) {
return Container(
constraints: BoxConstraints(maxWidth: 375, maxHeight: 50),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Container(
child: AutoSizeText(
widget.inputParameter,
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 20.0,
),
),
),
Expanded(
child: Container(
decoration: BoxDecoration(
border: Border.all(
color: Colors.red,
width: 3,
),
borderRadius: BorderRadius.only(
topLeft: Radius.circular(10),
bottomLeft: Radius.circular(10),
),
),
child: TextField(
controller: widget.textField, // <-- The Controller
autofocus: true,
textAlign: TextAlign.center,
onChanged: (newText) {
newTaskTitle = newText;
},
),
),
),
Container(
decoration: BoxDecoration(
color: Colors.red,
border: Border.all(
color: Colors.red,
width: 3,
),
borderRadius: BorderRadius.only(
topRight: Radius.circular(10),
bottomRight: Radius.circular(10),
),
),
child: Row(
children: <Widget>[
Container(
padding: EdgeInsets.all(5),
child: Center(
child: AutoSizeText(
unit,
style: TextStyle(fontSize: 20, fontWeight: FontWeight.w500),
)),
),
Container(
constraints: BoxConstraints(maxHeight: 50, maxWidth: 60),
child: FlatButton(
highlightColor: Colors.transparent,
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Icon(
Icons.loop,
size: 25,
),
],
),
onPressed: () {
setState(() {
selectedUnit = selectedUnit == Units.unit2
? Units.unit1
: Units.unit2;
if (selectedUnit == Units.unit1) {
unit = widget.unit1;
} else {
unit = widget.unit2;
}
});
},
)),
],
),
),
],
),
);
}
}
class InputScreen extends StatefulWidget {
static const String id = 'adjustments';
@override
AdjustmentInputScreenState createState() => AdjustmentInputScreenState();
}
class AdjustmentInputScreenState extends State<InputScreen> {
final TextEditingController weightController = TextEditingController(); //create one for the height
final TextEditingController heightController = TextEditingController(); //create one for the width
//don't forget to dispose them
@override
void dispose(){
super.dispose();
weightController.dispose();
heightController.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Column(
children: <Widget>[
AppBar(
leading: null,
actions: <Widget>[
IconButton(
icon: Icon(Icons.close),
onPressed: () {
Navigator.pop(context);
}),
],
title: Text('Dose Adjustment'),
backgroundColor: Colors.transparent,
elevation: 0.0,
),
InputRow(
unit1: 'cm',
unit2: 'inches',
inputParameter: 'height',
textField: heightController, // The textcontroller to check the height
),
InputRow(unit1: 'lbs', unit2: 'kg', inputParameter: 'weight',
textField: weightController, // The textcontroller to check the weight
),
FlatButton(
child: Text('Calculate'),
onPressed: () {
//int.tryparse if you want a number, check for null, empty strings or strings that aren't number
String height = heightController.text;
String weight = weightController.text;
print('Height: $height');
print('Weight: $weight');
//Do your math here
},
),
],
),
);
}
}
class MyUnit extends ValueNotifier<Units>{ //You want to check when the enum Units change, so that will be your ValueNotifier
final String _label1;
final String _label2;
MyUnit({Units unit = Units.unit1, String label1 = 'cm', String label2 = 'inches'}) : _label1 = label1, _label2 = label2, super(unit);
String get label => value == Units.unit1 ? _label1 : _label2; //The labels you define, just like unit1 and unit2 in InputRow
Units get unit => value; //the enum value
set unit(Units newUnit) => value = newUnit; //when this change, it will rebuild the listeners
}
final MyUnit heightUnit = MyUnit();
final MyUnit weightUnit = MyUnit(label1: 'lbs', label2: 'kg');
//don't forget to dispose them
@override
void dispose(){
super.dispose();
weightController.dispose();
heightController.dispose();
heightUnit.dispose();
weightUnit.dispose();
}
...
InputRow(
myUnit: heightUnit,
inputParameter: 'height',
textField: heightController,
),
InputRow(myUnit: weightUnit, inputParameter: 'weight',
textField: weightController,
),
FlatButton(
child: Text('Calculate'),
onPressed: () {
//I change the names of the variables to avoid confusion
String myHeight = heightController.text;
String myWeight = weightController.text;
String labelHeight = heightUnit.label;
String labelWeight = weightUnit.label;
print('Height: $myHeight $labelHeight');
print('Weight: $myWeight $labelWeight');
double weight = double.parse(myWeight); //this could throw an error if myWeight cannot be parsed
if(weightUnit.unit == Units.unit1) weight = weight / 2.2;
print(weight.toStringAsFixed(1));
//Do your math here
},
),
class InputRow extends StatefulWidget {
InputRow({this.inputParameter, this.textField, this.myUnit});
final String inputParameter;
final MyUnit myUnit;
final TextEditingController textField; //Add this controller and also to the parameters of the constructor
@override
_InputRowState createState() => _InputRowState();
}
class _InputRowState extends State<InputRow> {
@override
void initState() {
super.initState();
}
@override
Widget build(BuildContext context) {
return Container(
constraints: BoxConstraints(maxWidth: 375, maxHeight: 50),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Container(
child: Text(
widget.inputParameter,
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 20.0,
),
),
),
Expanded(
child: Container(
decoration: BoxDecoration(
border: Border.all(
color: Colors.red,
width: 3,
),
borderRadius: BorderRadius.only(
topLeft: Radius.circular(10),
bottomLeft: Radius.circular(10),
),
),
child: TextField(
controller: widget.textField, // <-- The Controller
autofocus: true,
textAlign: TextAlign.center,
),
),
),
Container(
decoration: BoxDecoration(
color: Colors.red,
border: Border.all(
color: Colors.red,
width: 3,
),
borderRadius: BorderRadius.only(
topRight: Radius.circular(10),
bottomRight: Radius.circular(10),
),
),
child: Row(
children: <Widget>[
Container(
padding: EdgeInsets.all(5),
child: Center(
child: ValueListenableBuilder<Units>( //This work as a listener
valueListenable: widget.myUnit, //the object to listen, it needs to extend a ValueNotifier
builder: (context, unit, _) =>
Text(widget.myUnit.label,style: TextStyle(fontSize: 20, fontWeight: FontWeight.w500))
/*
The builder gives me a value unit, that I can use when the ValueListenableBuilder rebuilds,
but that is the Units enum, which you don't want to display, so you ignore it and give widget.myUnit.label to the Text widget, it will rebuild only when Units change, but the label also getter also change with that value, so it's ok
*/
)
),
),
Container(
constraints: BoxConstraints(maxHeight: 50, maxWidth: 60),
child: FlatButton(
highlightColor: Colors.transparent,
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Icon(
Icons.loop,
size: 25,
),
],
),
onPressed: () {
Units unit = widget.myUnit.unit;
widget.myUnit.unit = unit == Units.unit1 ? Units.unit2 : Units.unit1; //this will call the setter in MyUnit and rebuild the listeners
},
)),
],
),
),
],
),
);
}
}
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'rect_button.dart';
import 'package:pocketpk/constants.dart';
enum Option {
one,
two,
three,
}
class TriButton extends StatefulWidget {
TriButton(
{this.title1, this.title2, this.title3, this.triWidth, this.onChanged});
final String title1;
final String title2;
final String title3;
final Constraints triWidth;
ValueChanged<Option> onChanged;
@override
_TriButtonState createState() => _TriButtonState();
}
class _TriButtonState extends State<TriButton> {
Option selectedOption;
@override
Widget build(BuildContext context) {
return Center(
child: Container(
constraints: widget.triWidth,
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: ValueListenableBuilder<Option>(
valueListenable: widget.onChanged,
builder: (context, option, _) => RectButton(
buttonChild: Text(
widget.title1,
style: TextStyle(color: Colors.white),
),
onPress: () {
setState(() {
selectedOption = Option.one;
});
},
bgColor: selectedOption == Option.one
? kActiveButtonColor
: kInactiveButtonColor,
),
),
),
Expanded(
child: ValueListenableBuilder<Option>(
valueListenable: widget.onChanged,
builder: (context, option, _) => RectButton(
buttonChild: Text(
widget.title2,
style: TextStyle(color: Colors.white),
),
onPress: () {
setState(() {
selectedOption = Option.two;
});
},
bgColor: selectedOption == Option.two
? kActiveButtonColor
: kInactiveButtonColor,
),
),
),
Expanded(
child: ValueListenableBuilder<Option>(
valueListenable: widget.onChanged,
builder: (context, option, _) => RectButton(
buttonChild: Text(
widget.title3,
style: TextStyle(color: Colors.white),
),
onPress: () {
setState(() {
selectedOption = Option.three;
});
},
bgColor: selectedOption == Option.three
? kActiveButtonColor
: kInactiveButtonColor,
),
),
),
],
),
),
);
}
}
import 'package:flutter/material.dart';
import 'package:pocketpk/widgets/tri_button.dart';
class MyButton extends ValueNotifier<Option> {
final String _title1;
final String _title2;
final String _title3;
MyButton(
{Option option = Option.one,
String title1 = 'A',
String title2 = 'B',
String title3 = 'C'})
: _title1 = title1,
_title2 = title2,
_title3 = title3,
super(option);
//You can add a get method to retrieve the title based on the option selected with a switch
String get title {
switch (value) {
case Option.one:
return _title1;
case Option.two:
return _title2;
case Option.three:
return _title3;
default:
return _title1; //or a default String, but to be honest this will never be used
}
}
Option get option => value;
set option(Option newOption) => value = newOption;
}
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'rect_button.dart';
import 'package:pocketpk/constants.dart';
enum Option {
one,
two,
three,
}
class Parent extends StatelessWidget{
ValueNotifier<Option> myButton = MyButton();
@override
Widget build(BuildContext context){
return ValueListenableBuilder<Option>(
valueListenable: myButton,
builder: (context, button, _) => TriButton(
title1: button.title1, //take the underscores of the names in the MyButton class to make them public
title2: button.title2,
title3: button.title3,
triWidth: BoxConstraints(), //I don't know this value
onChanged: (newOption) => button.option = newOption,
)
);
}
}
class TriButton extends StatefulWidget {
TriButton(
{this.title1, this.title2, this.title3, this.triWidth, this.onChanged});
final String title1;
final String title2;
final String title3;
final Constraints triWidth;
ValueChanged<Option> onChanged;
@override
_TriButtonState createState() => _TriButtonState();
}
class _TriButtonState extends State<TriButton> {
@override
Widget build(BuildContext context) {
return Center(
child: Container(
constraints: widget.triWidth,
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: RectButton(
buttonChild: Text(
widget.title1,
style: TextStyle(color: Colors.white),
),
onPress: () {
widget.onChanged(Option.one);
},
bgColor: selectedOption == Option.one
? kActiveButtonColor
: kInactiveButtonColor,
),
),
Expanded(
child: RectButton(
buttonChild: Text(
widget.title2,
style: TextStyle(color: Colors.white),
),
onPress: () {
widget.onChanged(Option.two);
},
bgColor: selectedOption == Option.two
? kActiveButtonColor
: kInactiveButtonColor,
),
),
Expanded(
child: RectButton(
buttonChild: Text(
widget.title3,
style: TextStyle(color: Colors.white),
),
onPress: () {
widget.onChanged(Option.three);
},
bgColor: selectedOption == Option.three
? kActiveButtonColor
: kInactiveButtonColor,
),
),
],
),
),
);
}
}
class _TriButtonState extends State<TriButton> {
Option selectedOption;
// this value is not part of the notifier,
// it's an independent variable
@override
Widget build(BuildContext context) {
return Center(
child: Container(
constraints: widget.triWidth,
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: RectButton(
buttonChild: Text(
widget.title1,
style: TextStyle(color: Colors.white),
),
onPress: () {
setState(() {
selectedOption = Option.one;
//changing this value doesn't notify/change the ValueNotifier
});
},
bgColor: selectedOption == Option.one
? kActiveButtonColor
: kInactiveButtonColor,
),
),
class TriButton extends StatefulWidget {
TriButton(
{this.title1, this.title2, this.title3, this.triWidth, this.selected, this.onChanged});
final String title1;
final String title2;
final String title3;
final BoxConstraints triWidth;
final Option selected; //instead of passing the class, just pass the option from the class
final ValueChanged<Option> onChanged; //create this to tell the notifier a value changed
@override
_TriButtonState createState() => _TriButtonState();
}
class _TriButtonState extends State<TriButton> {
Option selectedOption;
// this value is not part of the notifier,
// it's an independent variable
@override
Widget build(BuildContext context) {
return Center(
child: Container(
constraints: widget.triWidth,
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: RectButton(
buttonChild: Text(
widget.title1,
style: TextStyle(color: Colors.white),
),
onPress: () => widget.onChanged(Option.one), //tell to which value you want to change when this is pressed
bgColor: widget.selected == Option.one
? kActiveButtonColor
: kInactiveButtonColor,
),
),
.... //Repeat for the others
ValueListenableBuilder<Option>(
valueListenable: selected,
builder: (context, option, _) => TriButton(
title1: 'Button 1',
title2: 'Button 2',
title3: 'Button 3',
selected: option, //the value selected
onChanged: (newOption) => selected.option = newOption //the value to change when one of the buttons is pressed
),
),
final Map<int,Widget> buttons = {
1: Text('Button 1'),
2: Text('Button 2'),
3: Text('Button 3')
};
final Map<int,Widget> genereatedButtons = List<Widget>.generate(
10, (index) => Text('Button $index')).asMap(); //This is the same as the above, just to generate as much as you want, in this case I just genereated 10
int keySelected; //it holds the value selected, if null nothing is selected, but you could initilialize it at 0
CupertinoSegmentedControl<int>(
children: genereatedButtons, //or the other map buttons
groupValue: keySelected,
onValueChanged: (index) => setState(() => keySelected = index),
),
class InputScreen extends StatefulWidget {
static const String id = 'Input';
@override
_InputScreenState createState() =>
_InputScreenState();
}
class _InputScreenState
extends State<InputScreen> {
final TextEditingController weightController = TextEditingController();
final TextEditingController heightController = TextEditingController();
final TextEditingController creatController = TextEditingController();
final TextEditingController ageController = TextEditingController();
final MyUnit heightUnit = MyUnit();
final MyUnit weightUnit = MyUnit(imperial: 'lbs', metric: 'kg');
final MyUnit creatUnit = MyUnit(imperial: 'mg/dL', metric: 'mg/dL');
final MyUnit ageUnit = MyUnit(imperial: 'years', metric: 'years');
final MyButton selected = MyButton(title3: 'Female', title4: 'Male');
@override
void dispose() {
super.dispose();
weightController.dispose();
heightController.dispose();
creatController.dispose();
heightUnit.dispose();
weightUnit.dispose();
ageUnit.dispose();
selected.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.black,
body: Column(
children: <Widget>[
ClipPath(
clipper: MyClipper(),
child: Container(
height: 250,
width: double.infinity,
decoration: BoxDecoration(
gradient: kHeaderGradient,
image: DecorationImage(
image: AssetImage('images/virus.png'),
),
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
AppBar(
leading: null,
actions: <Widget>[
IconButton(
icon: Icon(Icons.close),
onPressed: () {
Navigator.pop(context);
}),
],
title: Text(
'Creatinine Clearance',
style: kHeaderTextStyle,
),
backgroundColor: Colors.transparent,
elevation: 0.0,
),
],
),
),
),
Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
ValueListenableBuilder<Option>(
valueListenable: selected,
builder: (context, option, _) => MakeButtons(
num0: 3,
num1: 5,
makeButtonWidth: MediaQuery.of(context).size.width * 0.45,
selected: option,
onChanged: (newOption) => selected.option = newOption,
),
),
InputRow(
myUnit: heightUnit,
inputParameter: 'height',
textField: heightController,
colour: kOrangePantone,
),
InputRow(
myUnit: weightUnit,
inputParameter: 'weight',
textField: weightController,
colour: kRoyalPurple,
),
InputRow(
myUnit: creatUnit,
inputParameter: 'SCr',
textField: creatController,
colour: kDogwoodRose,
),
InputRow(
myUnit: ageUnit,
inputParameter: 'Age',
textField: ageController,
colour: kDogwoodRose,
),
RoundedButton(
title: 'Calculate',
onPressed: () {
String inputHeight = heightController.text;
String inputWeight = weightController.text;
String inputCreat = creatController.text;
String inputAge = ageController.text;
double imperialHeight = double.parse(inputHeight) * 2.54;
double metricHeight = double.parse(inputHeight);
double imperialWeight = double.parse(inputWeight) / 2.2;
double metricWeight = double.parse(inputWeight);
double creat = double.parse(inputCreat);
double age = double.parse(inputAge);
double multiplier = selected.title == 'Female' ? 0.85 : 1.0; //- code I am trying to have performed on my calculator model //
double height = heightUnit.unitType == 'cm'
? metricHeight
: imperialHeight;
double weight = weightUnit.unitType == 'cm'
? metricWeight
: imperialWeight;
double idealWeight = selected.title == 'Female'//- Code I am trying to perform on my calculator model
? (45 +
2.3 *
(heightUnit.unitType == 'cm'
? ((double.parse(inputHeight) - 152.4) / 2.54)
: (double.parse(inputHeight) - 60)))
: (50 +
2.3 *
(heightUnit.unitType == 'cm'
? ((double.parse(inputHeight) - 152.4) / 2.54)
: (double.parse(inputHeight) - 60)));
double adjustWeight = (weightUnit.unitType == 'kg'
? (double.parse(inputWeight) - idealWeight) * 0.4 +
idealWeight
: ((double.parse(inputWeight) / 2.2) - idealWeight) *
0.4 +
idealWeight);
print(weight);
print(idealWeight);
print(adjustWeight);
Calculator calc;
calc = Calculator(
height: height,
weight: weight,
creatinine: creat,
age: age,
//- right now I can only pass the data this way. If I try to do math in my calculator model, I keep getting the else result of my if statements because no value is passed before the code is run
genderMultiplier: multiplier,
ideal: idealWeight,
adjust: adjustWeight,
);
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => ResultsScreen(
Result: calc.calculate(),
idealResult: calc.calculateIdeal(),
adjustResult: calc.calculateAdjust(),
),
),
);
},
),
],
),
],
),
);
}
}
class MyClipper extends CustomClipper<Path> {
@override
Path getClip(Size size) {
var path = Path();
path.lineTo(0, size.height - 80);
path.quadraticBezierTo(
size.width / 2, size.height, size.width, size.height - 80);
path.lineTo(size.width, 0);
path.close();
return path;
}
@override
bool shouldReclip(CustomClipper<Path> oldClipper) {
return false;
}
}
class Calculator {
Calculator({
height,
weight,
creatinine,
age,
genderMultiplier,
ideal,
adjust,
});
double _crcl;
double _idealCrCL;
double _adjustCrCL;
factory Calculator.idealCalculate({
double height,
double weight,
double creatinine,
double age,
bool isFemale = true,
bool isMetricHeight = true,
bool isMetricWeight = true,
}) {
double myHeight = isMetricHeight ? height : height * 2.54;
double myWeight = isMetricWeight ? weight : weight / 2.2;
double imperialHeight = isMetricHeight ? myHeight / 2.54 : height;
double multiplier;
double idealWeight;
double adjustWeight;
if (isFemale) {
multiplier = 0.85;
idealWeight = 45 + 2.3 * (imperialHeight - 60);
} else {
multiplier = 1.0;
idealWeight = 50 + 2.3 * (imperialHeight - 60);
}
adjustWeight = (myWeight - idealWeight) * 0.4 + idealWeight;
return Calculator(
height: myHeight,
weight: myWeight,
creatinine: creatinine,
age: age,
genderMultiplier: multiplier,
ideal: idealWeight,
adjust: adjustWeight,
);
}
String calculate() {
_crcl = (((140 - age) * weight) / (72 * creatinine)) * genderMultiplier;
return _crcl.toStringAsFixed(1);
}
String calculateIdeal() {
_idealCrCL = (((140 - age) * ideal) / (72 * creatinine)) * genderMultiplier;
return _idealCrCL.toStringAsFixed(1);
}
String calculateAdjust() {
_adjustCrCL = weight / ideal >= 1.4
? (((140 - age) * adjust) / (72 * creatinine)) * genderMultiplier
: _idealCrCL;
return _adjustCrCL.toStringAsFixed(1);
}
}
class ResultsScreen extends StatelessWidget {
static const String id = 'results';
ResultsScreen({
@required this.Result,
this.idealResult,
this.adjustResult,
});
final String Result;
final String idealResult;
final String adjustResult;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('BMI CALCULATOR'),
),
body: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Container(
padding: EdgeInsets.all(15),
alignment: Alignment.bottomLeft,
child: Text(
'Your Result',
),
),
ReuseableCard(
bgColor: kGreyBackgroundColor,
cardChild: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Text(
Result,
),
Text(idealResult),
Text(adjustResult),
],
),
),
RoundedButton(
title: 'Re-Calc',
onPressed: () {
Navigator.pop(context);
},
)
],
),
);
}
}
RoundedButton(
title: 'Calculate',
onPressed: () {
String inputHeight = heightController.text;
String inputWeight = weightController.text;
String inputCreat = creatController.text;
String inputAge = ageController.text;
double creat = double.parse(inputCreat);
double age = double.parse(inputAge);
print(weight);
print(idealWeight);
print(adjustWeight);
/// Create a factory constructor to help you do the math before creating the Calculator
Calculator calc = Calculator.idealCalculate(
height: double.parse(inputHeight),
weight: double.parse(inputWeight),
creatinine: double.parse(inputCreat),
age: double.parse(inputAge),
isFemale: selected.title == 'Female',
isMetricHeight: heightUnit.unitType == 'cm',
isMetricWeight: weightUnit.unitType == 'cm'
);
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => ResultsScreen(
Result: calc.calculate(),
idealResult: calc.calculateIdeal(),
adjustResult: calc.calculateAdjust(),
),
),
);
},
),
factory Calculator.idealCalculate({
double height,
double weight,
double creatinine,
double age,
bool isFemale = true,
bool isMetricHeight = true,
bool isMetricWeight = true,
}){
double myHeight = isMetricHeight ? height : height * 2.54;
double myWeight = isMetricWeight ? weight : weight / 2.2;
double imperialHeight = isMetricHeight ? myHeight / 2.54 : height;
double multiplier;
double idealWeight;
double adjustWeight;
if(isFemale){
multiplier = 0.85;
idealWeight = 45 + 2.3 * (imperialHeight - 60);
}
else{
multiplier = 1.0;
idealWeight = 50 + 2.3 * (imperialHeight - 60);
}
adjustWeight = (myWeight - idealWeight) * 0.4 + idealWeight;
return Calculator(
height: myHeight,
weight: myWeight,
creatinine: creatinine,
age: age,
genderMultiplier: multiplier,
ideal: idealWeight,
adjust: adjustWeight,
);
}
import 'package:flutter/material.dart';
class Calculator {
Calculator({
this.height,
this.weight,
this.creatinine,
this.age,
this.genderMultiplier,
this.ideal,
this.adjust,
});
double height;
double weight;
double creatinine;
double age;
double genderMultiplier;
double ideal;
double adjust;
String heightUnit;
double _crcl;
double _idealCrCL;
double _adjustCrCL;
factory Calculator.idealCalculate({
double height,
double weight,
double creatinine,
double age,
bool isFemale = true,
bool isMetricHeight = true,
bool isMetricWeight = true,
}){
double myHeight = isMetricHeight ? height : height * 2.54;
double myWeight = isMetricWeight ? weight : weight / 2.2;
double imperialHeight = isMetricHeight ? myHeight / 2.54 : height;
double multiplier;
double idealWeight;
double adjustWeight;
if(isFemale){
multiplier = 0.85;
idealWeight = 45 + 2.3 * (imperialHeight - 60);
}
else{
multiplier = 1.0;
idealWeight = 50 + 2.3 * (imperialHeight - 60);
}
adjustWeight = (myWeight - idealWeight) * 0.4 + idealWeight;
return Calculator(
height: myHeight,
weight: myWeight,
creatinine: creatinine,
age: age,
genderMultiplier: multiplier,
ideal: idealWeight,
adjust: adjustWeight,
);
}
set idealWeight(String title) {
bool isFemale = title == 'Female';
double imperialHeight = heightUnit == 'cm' ? height / 2.54 : height;
if(isFemale){
genderMultiplier = 0.85;
ideal = 45 + 2.3 * (imperialHeight - 60);
}
else{
genderMultiplier = 1.0;
ideal = 50 + 2.3 * (imperialHeight - 60);
}
adjust = (weight - ideal) * 0.4 + ideal;
}
String calculate() {
_crcl = (((140 - age) * weight) / (72 * creatinine)) * genderMultiplier;
return _crcl.toStringAsFixed(1);
}
String calculateIdeal() {
_idealCrCL = (((140 - age) * ideal) / (72 * creatinine)) * genderMultiplier;
return _idealCrCL.toStringAsFixed(1);
}
String calculateAdjust() {
_adjustCrCL = weight / ideal >= 1.4
? (((140 - age) * adjust) / (72 * creatinine)) * genderMultiplier
: _idealCrCL;
return _adjustCrCL.toStringAsFixed(1);
}
}
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: Center(
child: MyWidget(),
),
),
);
}
}
class MyWidget extends StatelessWidget {
final Calculator calc = Calculator.idealCalculate(
age: 24,
creatinine: 152,
height: 162,
weight: 64
);
@override
Widget build(BuildContext context) {
return Text(calc.calculate(), style: Theme.of(context).textTheme.headline4);
}
}