bottom_sheet_scaffold

Slide your bottom sheet by sliding the body of the scaffold!. Very simple and customizable bottom sheet implementation.

Features

• Easy usage
• Determine the height of the bottom sheet by sliding the body of the scaffold
• Draggable bottom sheet body
• Animated Opacity
• Fully customizable
• Listen the status of bottom sheet by using BottomSheetBuilder
• No need to set any header to slide bottom sheet

Usage

Change your Scaffold into BottomSheetScaffold.

BottomSheetScaffold(
      draggableBody: true,
      dismissOnClick: true,
      barrierColor: Colors.black54,
      bottomSheet: DraggableBottomSheet(
        animationDuration: Duration(milliseconds: 200),
        body: BottomSheetBody(),
        header: BottomSheetHeader(),//header is not required
      ),
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: ScaffoldBody(),
    )

You can customize OnWillPop of BottomSheet

BottomSheetScaffold(
      draggableBody: true,
      dismissOnClick: true,
      onWillPop: (() async {
        if (BottomSheetPanel.isOpen) {
          BottomSheetPanel.close();
          return false;
        } else {
          return true;
        }
      }),
      barrierColor: Colors.black54,
      bottomSheet: DraggableBottomSheet(
        animationDuration: Duration(milliseconds: 200),
        body: BottomSheetBody(),
        header: BottomSheetHeader(),//header is not required
      ),
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: ScaffoldBody(),
    )

Barrier not being displayed in scaffold to be used inside

If you use Scaffold inside BottomSheetScaffold, you should wrap the body of the Scaffold with BarrierViewer. This way you can display the barrier color you defined when the bottom sheet is opened

return BottomSheetScaffold(
      bottomSheet: DraggableBottomSheet(
        animationDuration: const Duration(milliseconds: 200),
        body: Container(
            width: double.infinity,
            height: 500,
            alignment: Alignment.center,
            child: const Text(
              "Bottom Sheet",
              style: TextStyle(fontSize: 36, color: Colors.black),
            )),
        header: Container(
          height: 60,
          color: Colors.blue,
          child: const Center(
              child: Text(
            "Drag me",
            style: TextStyle(color: Colors.white),
          )),
        ),
      ),
      appBar: AppBar(
        title: const Text(
          "My AppBar",
        ),
      ),
      body: Scaffold(
        body: BarrierViewer(
          child: Center(
            child: Column(

DraggableBottomSheet

DraggableBottomSheet(
    {super.key,
    this.maxHeight = 500,
    this.minHeight = 0,
    this.header,
    this.animationDuration = const Duration(milliseconds: 200),
    this.autoSwipped = true,
    this.draggableBody = true,
    this.gradientOpacity = true,
    this.headerVisibilityOnTap = true,
    this.backgroundColor = Colors.white60,
    this.onHide,
    this.radius = 30,
    this.onShow,
    required this.body})

BottomSheetPanel

Open bottom sheet

BottomSheetPanel.open();

Close bottom sheet

BottomSheetPanel.close();

Update height of bottom sheet

BottomSheetPanel.close();

Check if bottom sheet is opened

BottomSheetPanel.isOpen;

Check if bottom sheet is expanded

BottomSheetPanel.isExpanded;

Check if bottom sheet is collapsed

BottomSheetPanel.isCollapsed;

DraggableArea

If you set the parameter "draggableBody" in DraggableBottomSheet to false, you will need the DraggableArea widget to scroll the bottom sheet.

DraggableBottomSheet(
        draggableBody: false,
        body: Column(
          children: [
            DraggableArea(
              child: Container(
                height: 80,
                width: double.infinity,
                color: Colors.blue,
                alignment: Alignment.center,
                child: const Text(
                  "Drag Me",
                  style: TextStyle(color: Colors.white),
                ),
              ),
            ),
            Container(
              height: 500,
              color: Colors.red,
              child: const Center(
                  child: Text(
                "Bottom Sheet",
                style: TextStyle(fontSize: 36, color: Colors.white),
              )),
            )
          ],
        ),
      )

BottomSheetBuilder

Use BottomSheetBuilder if you need to listen bottom sheet status to change something in your page.

BottomSheetBuilder(
        builder: (status, context) {
          return FloatingActionButton(
            onPressed: () {
              if (BottomSheetPanel.isExpanded) {
                BottomSheetPanel.close();
              } else {
                BottomSheetPanel.open();
              }
            },
            child: Icon(!status.isExpanded
                ? Icons.open_in_browser
                : Icons.close_fullscreen),
          );
        },
      )

Example

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key});

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return BottomSheetScaffold(
      bottomSheet: DraggableBottomSheet(
        body: const Center(
            child: Text(
          "Bottom Sheet",
          style: TextStyle(fontSize: 36, color: Colors.black),
        )),
        header: Container(
          height: 60,
          color: Colors.blue,
          child: const Center(
              child: Text(
            "Drag me",
            style: TextStyle(color: Colors.white),
          )),
        ),
      ),
      appBar: AppBar(
        title: const Text(
          "My AppBar",
        ),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.start,
          children: <Widget>[
            const SizedBox(
              height: 100,
            ),
            BottomSheetBuilder(
              builder: (status, context) {
                return MaterialButton(
                  color: Colors.blue,
                  onPressed: () {
                    if (BottomSheetPanel.isExpanded) {
                      BottomSheetPanel.close();
                    } else {
                      BottomSheetPanel.open();
                    }
                  },
                  child: Icon(!status.isExpanded
                      ? Icons.open_in_browser
                      : Icons.close_fullscreen),
                );
              },
            ),
            const Text(
              'Body of scaffold',
            ),
          ],
        ),
      ),
    );
  }
}