Dart toast Library for flutter

oktoast

A pure dart toast Library. You can completely customize the style of toast.

Versions

3.x.x

Starting from the 3.x version, oktoast provides a null-safety version, the specific introduction of null-safety can be viewed in dart or flutter.

The 2.3.2 version is the last version that does not support null-safety.

About version 1.X.X

if you use oktoast 1.X.X ,Please use the 1.X branch, and read version readme.

Proposed migration to 2.X.X version. The new version does not require buildContext.

And you can completely customize the style of toast, because now you can use showToastWidget.

Usage

1. Add library to your pubspec.yaml

Get it from pub.dev say way as in: Basic Flutter App for painting over image and A complete animation widget for rotation with flutter

latest version:

dependencies:
  oktoast: ^3.0.0 # such as version, you need use the latest version of pub.

YAML

2. Import library in dart file

import 'package:oktoast/oktoast.dart';

Dart

3. Wrap your app widget

OKToast(
  /// set toast style, optional
  child:MaterialApp()
);

Dart

tips:
If you happened error like: No MediaQuery widget found

you can try to use next code to include oktoast to your App.

MaterialApp(builder: (context, widget) {
  return OKToast(
    child: widget,
  );
});

Dart

4. Call method showToast

showToast("content");

// position and second have default value, is optional

showToastWidget(Text('hello oktoast'));

Dart

Explain

There are two reasons why you need to wrap MaterialApp

1. Because this ensures that toast can be displayed in front of all other controls
2. Context can be cached so that it can be invoked anywhere without passing in context

Properties

OKToast params

oktoast have default style, and you also can custom style or other behavior.

Method showToast

Display text on toast.

Description of params see OKToast.

Method showToastWidget

Display custom widgets on toast

Description of params see showToast.

Method dismissAllToast

Dismiss all toast.

Return value of showToast and showToastWidget

about return type:
showToast and showToastWidget return type is ToastFuture,
The ToastFuture can be use to dismiss the toast.

For all dismiss toast method

An optional parameter showAnim is added to control whether fading animation is required for dismiss.

The praram default value is false.

Examples

import 'package:flutter/material.dart';
import 'package:oktoast/oktoast.dart'; // 1. import library

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return OKToast(
      //2. wrap your app with OKToast
      child:  MaterialApp(
        title: 'Flutter Demo',
        theme:  ThemeData(
          primarySwatch: Colors.blue,
        ),
        home:  MyHomePage(),
      ),
    );
  }
}

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

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

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    _counter++;

    // 3.1 use showToast method
    showToast(
      "$_counter",
      duration: Duration(seconds: 2),
      position: ToastPosition.bottom,
      backgroundColor: Colors.black.withOpacity(0.8),
      radius: 13.0,
      textStyle: TextStyle(fontSize: 18.0),
    );

    showToast(
      "$_counter",
      duration: Duration(seconds: 2),
      position: ToastPosition.top,
      backgroundColor: Colors.black.withOpacity(0.8),
      radius: 3.0,
      textStyle: TextStyle(fontSize: 30.0),
    );

    // 3.2 use showToastWidget method to custom widget
    Widget widget = Center(
      child: ClipRRect(
        borderRadius: BorderRadius.circular(30.0),
        child: Container(
          width: 40.0,
          height: 40.0,
           color: Colors.grey.withOpacity(0.3),
          child: Icon(
            Icons.add,
            size: 30.0,
            color: Colors.green,
          ),
        ),
      ),
    );

    ToastFuture toastFuture = showToastWidget(
      widget,
      duration: Duration(seconds: 3),
      onDismiss: () {
        print("the toast dismiss"); // the method will be called on toast dismiss.
      },
    );

    // can use future
    Future.delayed(Duration(seconds: 1), () {
      toastFuture.dismiss(); // dismiss
    });

    setState(() {

    });
  }

  @override
  Widget build(BuildContext context) {
    return  Scaffold(
      appBar:  AppBar(
        title:  Text("ktoast demo"),
      ),
      body: Stack(
        children: <Widget>[
           Center(
            child: ListView(
              children: <Widget>[
                 Text(
                  'You have pushed the button this many times:',
                ),
                 Text(
                  '$_counter',
                  style: Theme.of(context).textTheme.display1,
                ),
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: RaisedButton(
                    onPressed: () {
                      Navigator.push(context,
                          MaterialPageRoute(builder: (ctx) => MyHomePage()));
                    },
                  ),
                ),
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: RaisedButton(
                    onPressed: _incrementCounter,
                    child: Text('toast'),
                  ),
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }
}

Dart