How To Delete Item In Listview With Popup Menu Button In Flutter

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Flutter Demo',
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  List<String> _datas = [
    "Flutter",
    "Android",
    "Dart",
    "Ios",
    "Laravel",
    "Javascript",
    "Jquery",
    "Html",
  ];
  _onSelected(dynamic val) {
    setState(() => _datas.removeWhere((data) => data == val));
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.red[800],
        title: Text("Delete Item In ListView With PopupMenuButton"),
      ),
      body: ListView(
        children: _datas
            .map((data) => ListTile(
          title: Text(data),
          trailing: PopupMenuButton(
            onSelected: _onSelected,
            icon: Icon(Icons.menu),
            itemBuilder: (context) => [
              PopupMenuItem(
                value: data,
                child: Text("Delete"),
              ),
            ],
          ),
        ))
            .toList(),
      ),
    );
  }
}