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Modals, a Flutter package to simplify all your overlay needs!

Modals #

Modals

Flutter overlays simplified!

Pub

Motivation #

Working with Flutter overlays is quite cumbersome. Adding a simple context menu next to your button should not be hard.

Say hello 👋  to Modals, a package to simplify all your overlay needs!

Features #

  • Show modals easily
    • Position modals using absolute position
    • Position modals using alignment
    • Position modals based on another widget position
  • Prioritise modal visibility
  • Remove modals easily
    • Remove modal by id
    • Remove all modals at once
    • Remove modal by tapping modal barrier
    • Remove modals on route changes

How to use #

Showing modals #

showModal is used to show modals. Function accepts a ModalEntry as parameter. ModalEntry has 3 options ModalEntry.positioned, ModalEntry.aligned and ModalEntry.anchored

Positioned

class PositionedModalExample extends StatelessWidget {
  const PositionedModalExample({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Center(
      child: ElevatedButton(
        onPressed: () {
          showModal(ModalEntry.positioned(context,
              tag: 'containerModal',
              left: 200,
              top: 200,
              child: Container(
                color: Colors.red,
                width: 50,
                height: 50,
              )));
        },
        child: const Text('Show Modal'),
      ),
    );
  }
}

Above example positions your widget to absolute position of left: 200 and top 200.

Aligned

class AlignmentModalExample extends StatelessWidget {
  const AlignmentModalExample({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Center(
      child: ElevatedButton(
        onPressed: () {
          showModal(ModalEntry.aligned(context,
              tag: 'containerModal',
              alignment: Alignment.center,
              child: Container(
                color: Colors.red,
                width: 50,
                height: 50,
              )));
        },
        child: const Text('Show Modal'),
      ),
    );
  }
}

Above example aligns your widget to center of the screen.

Anchored


class AnchoredModalExample extends StatelessWidget {
  const AnchoredModalExample({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        children: [
          const ModalAnchor(
              tag: 'anchor',
              child: Card(
                color: Colors.grey,
                child: Padding(
                  padding: EdgeInsets.all(8.0),
                  child: Icon(Icons.anchor),
                ),
              )),
          Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              ElevatedButton(
                onPressed: () {
                  showModal(ModalEntry.anchored(context,
                      tag: 'anchoredModal',
                      anchorTag: 'anchor',
                      modalAlignment: Alignment.centerLeft,
                      anchorAlignment: Alignment.centerRight,
                      child: Container(
                        color: Colors.red,
                        width: 50,
                        height: 50,
                      )));
                },
                child: const Text('Show Modal'),
              ),
            ],
          ),
        ],
      ),
    );
  }
}

Above example positions widget at next to ModalAnchor widget.

To make widget act as an anchor, wrap widget with ModalAnchor widget.

Prioritising modals #

To prioritise modals, use aboveTag and belowTag parameters.

  • aboveTag
    • Modal will be positioned just above given aboveTag
  • belowTag
    • Modal will be positioned just above given belowTag

Removing modals #

You have 4 options to remove modals

removeModal(String id) removes modal by the given id

removeAllModals() removes all modals

Below parameters are configured in ModalEntry.

  • Tapping modal barrier
    • barrierDismissible when true (defaults to false) removes modal when tapping the barrier
    • barrierColor change barrier color (defaults to Colors.transparent)
  • Observing route changes
    • removeOnPop
      • The modal is removed when route is popped where the modal exists
    • removeOnPushNext
      • The modal is removed when new route is pushed on top of the route where the modal exists

To enable observing route changes, add navigator observer to root widget.

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'AppModals',
      navigatorObservers: [modalsRouteObserver], // <- This line here. Imported from modals
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const _Home(),
    );
  }
}

See the Examples for more information

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Publisher

verified publisher iconklasu.dev

Modals, a Flutter package to simplify all your overlay needs!

Repository (GitHub)
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Documentation

API reference

License

Icon for licenses.MIT (LICENSE)

Dependencies

flutter

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