Created
May 30, 2022 13:44
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import 'package:flutter/material.dart'; | |
class HomePage extends StatefulWidget { | |
const HomePage({Key? key}) : super(key: key); | |
@override | |
State<HomePage> createState() => _HomePageState(); | |
} | |
class _HomePageState extends State<HomePage> { | |
final textController = TextEditingController(); | |
@override | |
void dispose() { | |
textController.dispose(); | |
super.dispose(); | |
} | |
@override | |
Widget build(BuildContext context) { | |
return Scaffold( | |
body: Center( | |
child: SizedBox( | |
width: 400, | |
child: Column( | |
mainAxisAlignment: MainAxisAlignment.center, | |
crossAxisAlignment: CrossAxisAlignment.stretch, | |
children: [ | |
Container( | |
decoration: BoxDecoration( | |
color: Colors.black12, | |
shape: BoxShape.rectangle, | |
borderRadius: BorderRadius.circular(20.0), | |
), | |
child: Padding( | |
padding: const EdgeInsets.symmetric(vertical: 10.0), | |
child: TextField( | |
decoration: const InputDecoration( | |
border: InputBorder.none, | |
hintText: 'Use pad to enter number', | |
), | |
textAlign: TextAlign.center, | |
style: const TextStyle(fontSize: 25), | |
controller: textController, | |
), | |
), | |
), | |
// const SizedBox(height: 10), | |
GridView.count( | |
mainAxisSpacing: 10, | |
crossAxisSpacing: 10, | |
physics: const NeverScrollableScrollPhysics(), | |
shrinkWrap: true, | |
crossAxisCount: 3, | |
children: List.generate( | |
9, | |
(index) { | |
return getTextButton(index, context); | |
}, | |
), | |
), | |
const SizedBox(height: 20), | |
TextButton( | |
style: TextButton.styleFrom( | |
side: const BorderSide(), | |
shape: RoundedRectangleBorder( | |
borderRadius: BorderRadius.circular(10.0)), | |
), | |
onPressed: () { | |
textController.text = ""; | |
}, | |
child: Padding( | |
padding: const EdgeInsets.symmetric(vertical: 15.0), | |
child: Text( | |
'clear'.toUpperCase(), | |
style: const TextStyle(color: Colors.black, fontSize: 20), | |
), | |
)), | |
], | |
), | |
), | |
), | |
); | |
} | |
TextButton getTextButton(int index, BuildContext context) { | |
return TextButton( | |
style: TextButton.styleFrom( | |
shape: | |
RoundedRectangleBorder(borderRadius: BorderRadius.circular(10.0)), | |
side: const BorderSide(), | |
), | |
onPressed: () { | |
final updatedText = textController.text + (index + 1).toString(); | |
textController.value = textController.value.copyWith( | |
text: updatedText, | |
selection: TextSelection.collapsed(offset: updatedText.length), | |
); | |
}, | |
child: Text( | |
'${index + 1}', | |
style: Theme.of(context).textTheme.headline5, | |
), | |
); | |
} | |
Card getCardButton(int index, BuildContext context) { | |
return Card( | |
child: InkWell( | |
onTap: () { | |
final updatedText = textController.text + (index + 1).toString(); | |
textController.value = textController.value.copyWith( | |
text: updatedText, | |
selection: TextSelection.collapsed(offset: updatedText.length), | |
); | |
}, | |
child: Center( | |
child: Text( | |
'${index + 1}', | |
style: Theme.of(context).textTheme.headline5, | |
), | |
), | |
), | |
); | |
} | |
} |
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