Mobile App Development – Flutter

Lesson 37: Simple Counter App

Build a basic counter app using StatefulWidget.

class CounterApp extends StatefulWidget {
  @override
  _CounterAppState createState() => _CounterAppState();
}

class _CounterAppState extends State {
  int count = 0;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Counter App')),
      body: Center(child: Text('Count: $count')),
      floatingActionButton: FloatingActionButton(
        onPressed: () => setState(() => count++),
        child: Icon(Icons.add),
      ),
    );
  }
}