Nilen Patel Inc.

Tutorial and code of custom toast in flutter. Copy and paste the below code as per your requirements.

fluttertoast: ^8.0.7

import 'package:flutter/material.dart';
import 'package:fluttertoast/fluttertoast.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Flutter Toast',
      theme: ThemeData(
        primarySwatch: Colors.lightBlue,
      ),
      home: const MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key}) : super(key: key);

  @override
  _MyHomePageState createState()
  {
    return _MyHomePageState();
  }
}

class _MyHomePageState extends State<MyHomePage> {
  late FToast fToast;

  @override
  void initState() {
    super.initState();
    fToast = FToast();
    fToast.init(context);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: const Center(child: Text("Flutter Toast"),) ,
        ),
        body: Container(
          margin: const EdgeInsets.all(20),
          alignment: Alignment.topCenter,
          child: Column(
            children: [
              ElevatedButton(
                child: const Text("Show Toast"),
                onPressed: () {
                  showToast();
                },
              ),
              ElevatedButton(
                child: const Text("Show Custom Toast"),
                onPressed: () {
                  showCustomToast();
                },
              ),
            ],
          ),
        )
    );
  }

  void showToast() {
    Fluttertoast.showToast(
      msg: "Hey There!!",
      toastLength: Toast.LENGTH_SHORT,
    );
  }

  showCustomToast() {
    Widget toast = Container(
      padding: const EdgeInsets.symmetric(horizontal: 24.0, vertical: 12.0),
      decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(25.0),
        color: Colors.red,
      ),
      child: const Text("This is a Custom Toast"),
    );

    fToast.showToast(
      child: toast,
      toastDuration: const Duration(seconds: 3),
    );
  }
}