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A Flutter package for easily implementing Material Design navigation transitions.

Morpheus #

Pub Actions Status

A Flutter package for easily implementing Material Design navigation transitions.

Examples #

Parent-child transition #

You can use MorpheusPageRoute to create a parent-child transition between two screens.

Parent-child gif
import 'package:morpheus/morpheus.dart';

class MyList extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      itemCount: 10,
      itemBuilder: (context, index) {
        final _parentKey = GlobalKey();
        return ListTile(
          key: _parentKey,
          leading: CircleAvatar(child: Text((index + 1).toString())),
          title: Text('Item ${index + 1}'),
          onTap: () => _handleTap(context, _parentKey),
        );
      }
    );
  }

  void _handleTap(BuildContext context, GlobalKey parentKey) {
    Navigator.of(context).push(MorpheusPageRoute(
      builder: (context) => Scaffold(),
      parentKey: parentKey,
    ));
  }

}

Top-level transition #

You can use the MorpheusTabView widget to create a top-level transition when the child widget changes.

Top-level gif
import 'package:morpheus/morpheus.dart';

class MyTabScreen extends StatefulWidget {

  @override
  _MyTabScreenState createState() => _MyTabScreenState();

}

class _MyTabScreenState extends State<MyTabScreen> {

  final List<Widget> _screens = [
    Scaffold(backgroundColor: Colors.green),
    Scaffold(backgroundColor: Colors.red),
    Scaffold(backgroundColor: Colors.blue),
  ];
  int _currentIndex = 0;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: MorpheusTabView(
        child: _screens[_currentIndex]
      ),
      bottomNavigationBar: BottomNavigationBar(
        currentIndex: _currentIndex,
        items: [
          BottomNavigationBarItem(
            icon: Icon(Icons.trending_up),
            title: Text('Trending'),
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.star),
            title: Text('Saved'),
          ),
        ],
        onTap: (index) {
          if (index != _currentIndex) {
            setState(() => _currentIndex = index);
          }
        },
      ),
    );
  }

}
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Publisher

verified publishersalby.me

A Flutter package for easily implementing Material Design navigation transitions.

Repository (GitHub)
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Documentation

API reference

License

MIT (license)

Dependencies

flutter

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