A lightweight flutter package to simplify the creation of a miniplayer by providing a builder function with the current height and percentage progress. The widget responds to tap and drag gestures and is highly customizable. What is a miniplayer? Miniplayers are commonly used in media applications like Spotify and Youtube. A miniplayer can be expanded and minified and remains on the screen when minified until dismissed by the user. See the demo below for an example.
Stack(
children: <Widget>[
YourApp(),
Miniplayer(
minHeight: 70,
maxHeight: 370,
builder: (height, percentage) {
return Center(
child: Text('$height, $percentage'),
);
},
),
],
),
Implementing the miniplayer as described under usage - for instance by wrapping it inside a Stack
in the Scaffold
body - would work out of the box but has some disadvantages. If you push a new screen via Navigator.push
the miniplayer would disappear. What we want is a persistent miniplayer which stays on the screen.
If you want to archive persistency, you have the choice between two embedding options, which depends on your use case. The first method is only recommended for simple apps. If you want to use dialogs or other persistent widgets such as a BottomNavigationBar, the second (slightly more advanced) method is the right fit for you.
Using a Stack
in the builder method
import 'package:flutter/material.dart';
import 'package:miniplayer/miniplayer.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Miniplayer example',
theme: ThemeData(
visualDensity: VisualDensity.adaptivePlatformDensity,
),
home: MyHomePage(),
builder: (context, child) { // <--- Important part
return Stack(
children: [
child,
Miniplayer(
minHeight: 70,
maxHeight: 370,
builder: (height, percentage) {
if(percentage > 0.2)
//return Text('!mini');
else
//return Text('mini');
},
),
],
);
},
);
}
}
Using a Stack
in combination with a custom Navigator
import 'package:flutter/material.dart';
import 'package:miniplayer/miniplayer.dart';
void main() => runApp(MyApp());
final _navigatorKey = GlobalKey();
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Miniplayer example',
debugShowCheckedModeBanner: false,
theme: ThemeData(
primaryColor: Color(0xFFFAFAFA),
),
home: MyHomePage(),
);
}
}
class MyHomePage extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MiniplayerWillPopScope(
onWillPop: () async {
final NavigatorState navigator = _navigatorKey.currentState;
if (!navigator.canPop()) return true;
navigator.pop();
return false;
},
child: Scaffold(
body: Stack(
children: <Widget>[
Navigator(
key: _navigatorKey,
onGenerateRoute: (RouteSettings settings) => MaterialPageRoute(
settings: settings,
builder: (BuildContext context) => FirstScreen(),
),
),
Miniplayer(
minHeight: 70,
maxHeight: 370,
builder: (height, percentage) => Center(
child: Text('$height, $percentage'),
),
),
],
),
bottomNavigationBar: BottomNavigationBar(
currentIndex: 0,
fixedColor: Colors.blue,
items: [
BottomNavigationBarItem(
icon: Icon(Icons.home),
label: 'Home',
),
BottomNavigationBarItem(
icon: Icon(Icons.mail),
label: 'Messages',
),
BottomNavigationBarItem(
icon: Icon(Icons.person),
label: 'Profile',
)
],
),
),
);
}
}
class FirstScreen extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text('Demo: FirstScreen')),
body: Container(
constraints: BoxConstraints.expand(),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
ElevatedButton(
onPressed: () => Navigator.push(
context,
MaterialPageRoute(builder: (context) => SecondScreen()),
),
child: const Text('Open SecondScreen'),
),
ElevatedButton(
onPressed: () => Navigator.of(context, rootNavigator: true).push(
MaterialPageRoute(builder: (context) => ThirdScreen()),
),
child: const Text('Open ThirdScreen with root Navigator'),
),
],
),
),
);
}
}
class SecondScreen extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text('Demo: SecondScreen')),
body: Center(child: Text('SecondScreen')),
);
}
}
class ThirdScreen extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text('Demo: ThirdScreen')),
body: Center(child: Text('ThirdScreen')),
);
}
}
- Provide better examples
- Add an option to handle horizontal gestures as well (like Spotify does)
- Rewrite the API for onDismiss (breaking change)
- Marked onDismiss ad deprecated