DraggableBottomSheet

This is a bottom sheet that is partially visible onto the screen and can be dragged from there into the screen to occupy the fullscreen.

Draggable Bottom Sheet gif

Get Started

Add dependencies

draggable_bottom_sheet:

import package

import 'package:draggable_bottom_sheet/draggable_bottom_sheet.dart';

Example

import 'dart:ui';
import 'package:flutter/material.dart';
import 'package:draggable_bottom_sheet/draggable_bottom_sheet.dart

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: DraggableBottomSheetExample(title: 'Draggable Bottom Sheet Example'),
      debugShowCheckedModeBanner: false,
    );
  }
}

class DraggableBottomSheetExample extends StatelessWidget {
  DraggableBottomSheetExample({Key key, this.title}) : super(key: key);
  final String title;

  @override
  Widget build(BuildContext context) {
    List<IconData> icons = [Icons.ac_unit, Icons.account_balance, Icons.adb, Icons.add_photo_alternate, Icons.format_line_spacing];
    
    return Scaffold(
      body: DraggableBottomSheet(
        backgroundWidget: Scaffold(
          backgroundColor: Colors.white,
          appBar: AppBar(title: Text(title), backgroundColor: Colors.deepOrange,),
          body: Container(
            height: 400,
            child: ListView.separated(
              scrollDirection: Axis.horizontal,
              padding: EdgeInsets.symmetric(vertical: 32),
              itemCount: icons.length,
              itemBuilder: (context, index) => Container(
                width: MediaQuery.of(context).size.width * 0.7,
                height: 200,
                decoration: BoxDecoration(
                  color: Colors.grey,
                  borderRadius: BorderRadius.circular(20)
                ),
                child: Icon(icons[index], color: Colors.white, size: 60,),
              ),
              separatorBuilder: (context, index) => SizedBox(width: 10),
            ),
          ),
        ),
        previewChild: Container(
          padding: EdgeInsets.all(16),
          decoration: BoxDecoration(
            color: Colors.pink,
            borderRadius: BorderRadius.only(topLeft: Radius.circular(20), topRight: Radius.circular(20))
          ),
          child: Column(
            children: <Widget>[
              Container(
                width: 40,
                height: 6,
                decoration: BoxDecoration(
                  color: Colors.white,
                  borderRadius: BorderRadius.circular(10)
                ),
              ),
              SizedBox(height: 8,),
              Text('Drag Me', style: TextStyle(color: Colors.white, fontSize: 16, fontWeight: FontWeight.bold),),
              SizedBox(height: 16,),
              Row(
                mainAxisAlignment: MainAxisAlignment.center,
                children: icons.map((icon){
                  return Container(
                    width: 50,
                    height: 50,
                    margin: EdgeInsets.only(right: 16),
                    child: Icon(icon, color: Colors.pink, size: 40,),
                    decoration: BoxDecoration(
                      color: Colors.white,
                      borderRadius: BorderRadius.circular(10)
                    ),
                  );
                }).toList()
              )
            ],
          ),
        ),
        expandedChild: Container(
          padding: EdgeInsets.all(16),
          decoration: BoxDecoration(
            color: Colors.pink,
            borderRadius: BorderRadius.only(topLeft: Radius.circular(20), topRight: Radius.circular(20))
          ),
          child: Column(
            children: <Widget>[
              Icon(Icons.keyboard_arrow_down, size: 30, color: Colors.white,),
              SizedBox(height: 8,),
              Text('Hey...I\'m expanding!!!', style: TextStyle(color: Colors.white, fontSize: 16, fontWeight: FontWeight.bold),),
              SizedBox(height: 16,),
              Expanded(
                child: GridView.builder(
                  itemCount: icons.length,
                  gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                    crossAxisCount: 2,
                    crossAxisSpacing: 10,
                    mainAxisSpacing: 10,
                  ), 
                  itemBuilder: (context, index) => Container(
                    decoration: BoxDecoration(
                      color: Colors.white,
                      borderRadius: BorderRadius.circular(10)
                    ),
                    child: Icon(icons[index], color: Colors.pink, size: 40,),
                  )
                ),
              )
            ],
          ),
        ),
        minExtent: 150,
        maxExtent: MediaQuery.of(context).size.height * 0.8,
      )
    );
  }
}

Arguments

Description of DraggableBottomSheet arguments.

| Argument | Value | Description | | ------ | ------ | ------ | | alignment | Alignment | Alignment of the sheet | | backgroundWidget | Widget | This widget will hide behind the sheet when expanded. | | blurBackground | Boolean | Whether to blur the background while sheet expnasion (true: modal-sheet, false: persistent-sheet) | | expandedChild | Widget | Child of expended sheet | | expansionExtent | Double | Extent from the min-height to change from previewChild to expandedChild | | maxEntent | Double | Max-extent for sheet expansion | | minEntent | Double | Min-extent for the sheet, also the original height of the sheet | | previewChild | Widget | Child to be displayed when sheet is not expended | | scrollDirection | Axis | Scroll direction of the sheet |

Libraries

draggable_bottom_sheet