vertical_scrollable_tabview

A Flutter widget which synchronize a ScrollView and a custom tab view.

The main idea is to create a custom tab view synchronizing with inner ScrollView. The scroll activity will trigger custom tab view at the top to follow the index of the inner scroll view widget.

Installation

Add dependency for package on your pubspec.yaml:

dependencies:
    vertical_scrollable_tabview: <latest>

Usage

To use this widget we must first define how our tabs will look like.

VerticalScrollableTabView

Parameter	Definition
tabController	Trailing widget for a tab, typically an TabController.
listItemData	It must be List< dynamic > Type
eachItemChild	A item child that in ListView.Builder, First parameter is an object that you put in listItemData, Second parameter is the index in ListView.Builder
verticalScrollPosition	A Item Position
TabBar	A TabBar, That required in slivers[SliverAppbar(bottom:TabBar())]

Example

import 'package:vertical_scrollable_tabview/vertical_scrollable_tabview.dart';

VerticalScrollableTabView(
    tabController: tabController,                           <- Required TabBarController
    listItemData: data,<- Required List<dynamic>
    verticalScrollPosition: VerticalScrollPosition.begin,
    eachItemChild: (object, index) =>
        CategorySection(category: object as Category),       <- Object and index
    slivers: [                                               <- Required slivers 
      SliverAppBar(                                          <- Required SliverAppBar 
        bottom: TabBar(
          isScrollable: true,
          controller: tabController,
          indicatorPadding: const EdgeInsets.symmetric(horizontal: 16.0),
          indicatorColor: Colors.cyan,
          labelColor: Colors.cyan,
          unselectedLabelColor: Colors.white,
          indicatorWeight: 3.0,
          tabs: data.map((e) {
            return Tab(text: e.title);
          }).toList(),
          onTap: (index) {
            VerticalScrollableTabBarStatus.setIndex(index);  <- Required
          },
        ),
      ),
    ],
  ),

Contribution

Contributions are accepted via pull requests. For more information about how to contribute to this package, please check the contribution guide.

License

This project is licensed under the MIT license, additional knowledge about the license can be found here.