1-) FLUTTER - counter arttırmak eksiltmek increase decrease widget kullanımı

kaynak : https://pub.dev/packages/counter_button

EKRAN GÖRÜNTÜSÜ :

flutter pub add counter_button

import 'package:counter_button/counter_button.dart';

CounterButton(
loading: false,
onChange: (int val) {
setState(() {
_counterValue = val;
});
},
count: _counterValue,
countColor: Colors.purple,
buttonColor: Colors.purpleAccent,
progressColor: Colors.purpleAccent,

addIcon: Icon(Icons.add_circle,size: 35,color: Colors.blue,),
removeIcon: Icon(Icons.remove_circle,size: 35,color: Colors.red,),

)

ayrıca kaynak buda olabilir : https://pub.dev/packages/count_stepper