A Flutter package to create a nice circular menu using a Floating Action Button

FAB Circular Menu

A Flutter package to create a nice circular menu using a Floating Action Button.

Inspired by Mayur Kshirsagar‘s great FAB Microinteraction design.

Installation

Just add fab_circular_menu to your pubspec.yml file.

dependencies:
  fab_circular_menu: ^1.0.0

Example

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Placeholder(),
        floatingActionButton: FabCircularMenu(
          children: <Widget>[
            IconButton(icon: Icon(Icons.home), onPressed: () {
              print('Home');
            }),
            IconButton(icon: Icon(Icons.favorite), onPressed: () {
              print('Favorite');
            })
          ]
        )
      )
    );
  }
}

You can check for a more complete example in the example directory.

Customize

You can customize the widget appareance using the following properties:

Property Description Default
alignment Sets the widget alignment Alignment.bottomRight
ringColor Sets the ring color accentColor
ringDiameter Sets the ring diameter screenWidth * 1.25 (portrait) screenHeight * 1.25 (landscape)
ringWidth Sets the ring width ringDiameter * 0.3
fabSize Sets the FAB size 64.0
fabElevation Sets the elevation for the FAB 8.0
fabColor Sets the FAB color primaryColor
fabOpenColor Sets the FAB color while the menu is open. This property takes precedence over fabColor
fabCloseColor Sets the FAB color while the menu is closed. This property takes precedence over fabColor
fabChild Sets the child inside the FAB. This property takes precedence over fabOpenicon and fabCloseIcon
fabOpenIcon Sets the FAB icon while the menu is open Icon(Icons.menu)
fabCloseIcon Sets the FAB icon while the menu is closed Icon(Icons.close)
fabMargin Sets the widget margin EdgeInsets.all(16.0)
animationDuration Changes the animation duration Duration(milliseconds: 800)
animationCurve Allows you to modify the animation curve Curves.easeInOutCirc
onDisplayChange This callback is called every time the menu is opened or closed, passing the current state as a parameter.

Handling the menu programmatically

It is possible to handle the menu programatically by using a key. Just create a key and set it in the key property of the FabCircularMenu, then use the key to get the current state and open, close or check the status of the menu.

class MyApp extends StatelessWidget {
  final GlobalKey<FabCircularMenuState> fabKey = GlobalKey();

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: RaisedButton(
          onPressed: () {
            if (fabKey.currentState.isOpen) {
              fabKey.currentState.close();
            } else {
              fabKey.currentState.open();
            }
          },
          child: Text('Toggle menu')
        ),
        floatingActionButton: FabCircularMenu(
          key: fabKey,
          children: <Widget>[
            // ...
          ]
        )
      )
    );
  }
}

Contributing

I will be very happy if you contribute to this project, please submit a PR. 😁

GitHub

View Github