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🚧 remove new keyword to get inline with dart 2 code standard.

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This commit is contained in:
Nishant Srivastava
2019-07-23 03:42:56 +02:00
parent e8b433c00d
commit 6d56bfc5d4
45 changed files with 438 additions and 438 deletions
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26
tip_calculator/lib/main.dart
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@ -1,7 +1,7 @@
import 'package:flutter/material.dart';
void main() {
runApp(new MaterialApp(title: 'Tip Calculator', home: new TipCalculator()));
runApp(MaterialApp(title: 'Tip Calculator', home: TipCalculator()));
}
class TipCalculator extends StatelessWidget {
@ -11,7 +11,7 @@ class TipCalculator extends StatelessWidget {
@override
Widget build(BuildContext context) {
// Create first input field
TextField billAmountField = new TextField(
TextField billAmountField = TextField(
keyboardType: TextInputType.number,
onChanged: (String value) {
try {
@ -20,12 +20,12 @@ class TipCalculator extends StatelessWidget {
billAmount = 0.0;
}
},
decoration: new InputDecoration(labelText: "Bill amount(\$)"),
decoration: InputDecoration(labelText: "Bill amount(\$)"),
);
// Create another input field
TextField tipPercentageField = new TextField(
decoration: new InputDecoration(labelText: "Tip %", hintText: "15"),
TextField tipPercentageField = TextField(
decoration: InputDecoration(labelText: "Tip %", hintText: "15"),
keyboardType: TextInputType.number,
onChanged: (String value) {
try {
@ -36,30 +36,30 @@ class TipCalculator extends StatelessWidget {
});
// Create button
RaisedButton calculateButton = new RaisedButton(
child: new Text("Calculate"),
RaisedButton calculateButton = RaisedButton(
child: Text("Calculate"),
onPressed: () {
// Calculate tip and total
double calculatedTip = billAmount * tipPercentage / 100.0;
double total = billAmount + calculatedTip;
// Generate dialog
AlertDialog dialog = new AlertDialog(
content: new Text("Tip: \$$calculatedTip \n"
AlertDialog dialog = AlertDialog(
content: Text("Tip: \$$calculatedTip \n"
"Total: \$$total"));
// Show dialog
showDialog(context: context, builder: (BuildContext context) => dialog);
});
Container container = new Container(
Container container = Container(
padding: const EdgeInsets.all(16.0),
child: new Column(
child: Column(
children: [billAmountField, tipPercentageField, calculateButton]));
AppBar appBar = new AppBar(title: new Text("Tip Calculator"));
AppBar appBar = AppBar(title: Text("Tip Calculator"));
Scaffold scaffold = new Scaffold(appBar: appBar, body: container);
Scaffold scaffold = Scaffold(appBar: appBar, body: container);
return scaffold;
}
}