dropdown_banner 1.0.0

DropdownBanner manages the creation and animation of banner ui elements that are useful for displaying warnings and updates to users. It is simple to use and effective at event communication.

example/lib/main.dart

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

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blueGrey,
      ),
      home: DropdownBanner(builder: (context) => HomeWidget()),
    );
  }
}

class HomeWidget extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => _HomeWidgetState();
}

class _HomeWidgetState extends State<HomeWidget> {
  @override
  Widget build(BuildContext context) => Scaffold(
        appBar: AppBar(title: Text('DropdownBanner Example')),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              Spacer(flex: 1),
              Text('Tap an option to see the banner in action'),
              Padding(
                padding: EdgeInsets.symmetric(vertical: 16),
                child: GestureDetector(
                  onTapUp: (details) => DropdownBanner.showBanner(
                    text: 'Successfully saved your info!',
                    color: Colors.green,
                    textStyle: TextStyle(
                        color: Colors.white,
                        fontSize: 16,
                        fontWeight: FontWeight.bold),
                  ),
                  child: Container(
                    padding: EdgeInsets.symmetric(horizontal: 36, vertical: 8),
                    decoration: BoxDecoration(
                      color: Colors.green,
                      borderRadius: BorderRadius.circular(5),
                      boxShadow: [
                        BoxShadow(
                            blurRadius: 5, color: Colors.black.withOpacity(0.2))
                      ],
                    ),
                    child: Text(
                      'Test 1',
                      style: TextStyle(
                          color: Colors.white, fontWeight: FontWeight.bold),
                    ),
                  ),
                ),
              ),
              Padding(
                padding: EdgeInsets.symmetric(vertical: 16),
                child: GestureDetector(
                  onTapUp: (details) => DropdownBanner.showBanner(
                    text: 'Failed to complete the request',
                    color: Colors.red,
                    textStyle: TextStyle(
                        color: Colors.white,
                        fontSize: 16,
                        fontWeight: FontWeight.bold),
                  ),
                  child: Container(
                    padding: EdgeInsets.symmetric(horizontal: 36, vertical: 8),
                    decoration: BoxDecoration(
                      color: Colors.red,
                      borderRadius: BorderRadius.circular(5),
                      boxShadow: [
                        BoxShadow(
                            blurRadius: 5, color: Colors.black.withOpacity(0.2))
                      ],
                    ),
                    child: Text(
                      'Test 2',
                      style: TextStyle(
                          color: Colors.white, fontWeight: FontWeight.bold),
                    ),
                  ),
                ),
              ),
              Padding(
                padding: EdgeInsets.symmetric(vertical: 16),
                child: GestureDetector(
                  onTapUp: (details) => DropdownBanner.showBanner(
                    text:
                        'DropdownBanner has been added to your cart. You now have 15 items. Tap to checkout.',
                    color: Colors.black.withOpacity(0.8),
                    textStyle: TextStyle(
                        color: Colors.white,
                        fontSize: 14,
                        fontWeight: FontWeight.normal),
                    tapCallback: () async => showDialog(
                      context: context,
                      builder: (context) => Dialog(
                        shape: RoundedRectangleBorder(
                            side: BorderSide(color: Colors.black),
                            borderRadius: BorderRadius.circular(10)),
                        child: Container(
                          margin: EdgeInsets.all(16),
                          child: Text(
                            'You did a thing! 🎉',
                            textAlign: TextAlign.center,
                          ),
                        ),
                      ),
                    ),
                  ),
                  child: Container(
                    padding: EdgeInsets.symmetric(horizontal: 36, vertical: 8),
                    decoration: BoxDecoration(
                      color: Colors.black,
                      borderRadius: BorderRadius.circular(5),
                      boxShadow: [
                        BoxShadow(
                            blurRadius: 5, color: Colors.black.withOpacity(0.2))
                      ],
                    ),
                    child: Text(
                      'Test 3',
                      style: TextStyle(
                          color: Colors.white, fontWeight: FontWeight.bold),
                    ),
                  ),
                ),
              ),
              Spacer(flex: 2),
            ],
          ),
        ),
      );
}