vs_scrollbar 0.1.2

Customizable ScrollBar that can be dragged for quick navigation supporting both Horizontal and Vertical list.

vs_scrollbar

Customizable ScrollBar that can be dragged for quick navigation supporting both Horizontal and Vertical list.

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Table of Contents

• Installing - How to install
• Package Details - Package Details
• Example - How this plugin works
• Code example - How to use
• VsScrollBar object properties - Modifying your VsScrollBar

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Installing

Add to pubspec.yaml file

dependencies:
  vs_scrollbar: ^0.1.2

Import

import 'package:vs_scrollbar/vs_scrollbar.dart';

Package Details

Customizable ScrollBar that can be dragged for quick navigation supporting both Horizontal and Vertical list.

You can adjust scrollbar's thickness, radius, set custom colors and handle support for list drag functionality with prebuilt methods of default ScrollBar for Flutter.

Control animation duration of scrollbar using scrollbarTimeToFade, scrollbarFadeDuration properties.

Wrap This ScrollBar to any ScrollableList.
SingleChildScrollView
ListView
Listview.builder

Example

Try out example code all parameters are optional, currently serving basic use case scenarios.

Horizontal List

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Vertical List

Code example

// use same scrollController object to listview and scrollbar to support drag functionality
ScrollController _scrollController = ScrollController();

VsScrollbar(
   controller: _scrollController,
   scrollDirection: Axis.vertical, // @REQUIRED
   allowDrag: true, // allows to scroll the list using scrollbar [default : true]
   color: Colors.purple[900], // sets color of vsScrollBar
   radius: 50, // sets radius of vsScrollBar
   thickness: 8, // sets thickness of vsScrollBar
   isAlwaysShown: true, // default false
   // sets scrollbar fade animation duration [ Default : Duration(milliseconds: 300)]
   scrollbarFadeDuration: Duration(milliseconds: 500),
   // Fades scrollbar after certain duration [ Default : Duration(milliseconds: 600)]
   scrollbarTimeToFade: Duration(milliseconds: 800),
   child: ListView.builder(
             controller: _scrollController, 
             shrinkWrap: true,
             physics: BouncingScrollPhysics(),
             itemCount: 6,
             scrollDirection: Axis.vertical,
             itemBuilder: (BuildContext context, int index) {
                   return Container(
                          height: 100,
                          width: MediaQuery.of(context).size.width,
                          color: Colors.purple[900],
                          margin: EdgeInsets.all(15));
             },
   ),
)

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VsScrollbar object properties

Name	Type	Default	Description
controller	ScrollController	null	Controller for Scrollbar
scrollDirection	Axis	null	Needed for supporting Drag functionality to work properly
allowDrag	bool	true	Allows to scroll the list using scrollbar
color	Color	Colors.grey	ScrollBar Color
radius	double	50	Set Radius of ScrollBar
thickness	double	8	Set Thickness of ScrollBar
scrollbarFadeDuration	Duration	Duration(milliseconds: 300)	Sets scrollbar fade animation duration
scrollbarTimeToFade	Duration	Duration(milliseconds: 600)	Fades scrollbar after certain duration

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Pull request and feedback are always appreciated :)

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