Edit Mode Demo

main.dart

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Test Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  final String title;
  MyHomePage({Key? key, required this.title}) : super(key: key);

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  bool _isEditMode = false;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
        actions: [
          IconButton(
            icon: Icon(Icons.edit),
            onPressed: () {
              setState(() {
                _isEditMode = !_isEditMode;
              });
            },
          ),
        ],
      ),
      body: ListView.builder(
        itemCount: 10,
        itemBuilder: (context, index) {
          return ListTile(
            leading: _isEditMode
                ? IconButton(
                    onPressed: () {
                      print('deleting -> position $index item');
                    },
                    icon: Icon(Icons.remove_circle, color: Colors.red),
                  )
                : null,
            title: Text('Item $index'),
          );
        },
      ),
    );
  }
}