README.md

Dynamic TabBar

A Flutter package that simplifies the implementation of dynamic TabBar in your application.

With DynamicTabBarWidget, users can effortlessly manage and navigate through a list of Tabs. The widget is designed to auto-update as Tabs are added or removed, providing a seamless and dynamic user experience.

🚀 Demo: Dynamic Tabbar

📱 Screenshots

🛠 Installation

1. Add dependency to pubspec.yaml file:
   Get the latest version from the 'Installing' tab on pub.dev

dependencies:
  dynamic_tabbar: ^latest_version

2. Import the package

import 'package:dynamic_tabbar/dynamic_tabbar.dart';

3. Adding DynamicTabBarWidget

With required parameters

 DynamicTabBarWidget(
    dynamicTabs: tabs,
);

With optional parameters

 DynamicTabBarWidget(
    dynamicTabs: tabs,
    isScrollable: isScrollable,
    onTabControllerUpdated: (controller) {},
    onTabChanged: (index) {},
    onAddTabMoveTo: MoveToTab.last,
    onAddTabMoveToIndex : null,
    backIcon: Icon(Icons.arrow_back),
    nextIcon: Icon(Icons.arrow_forward),
    showBackIcon: showBackIcon,
    showNextIcon: showNextIcon,
    leading : leadingWidget,
    trailing : trailingWidget,

    // Default Tab properties can also be updated
    padding: padding,
    indicatorColor: indicatorColor,
    automaticIndicatorColorAdjustment: automaticIndicatorColorAdjustment,
    indicatorWeight: indicatorWeight,
    indicatorPadding: indicatorPadding,
    indicator: indicator,
    indicatorSize: indicatorSize,
    dividerColor: dividerColor,
    dividerHeight: dividerHeight,
    labelColor: labelColor,
    labelStyle: labelStyle,
    labelPadding: labelPadding,
    unselectedLabelColor: unselectedLabelColor,
    unselectedLabelStyle: unselectedLabelStyle,
    dragStartBehavior: dragStartBehavior,
    overlayColor: overlayColor,
    mouseCursor: mouseCursor,
    enableFeedback: enableFeedback,
    onTap: onTap,
    physics: physics,
    splashFactory: splashFactory,
    splashBorderRadius: splashBorderRadius,
    tabAlignment: tabAlignment,

    // Default TabBarView properties can also be updated
    physicsTabBarView: physicsTabBarView,
    dragStartBehaviorTabBarView: physicsTabBarView,
    viewportFractionTabBarView: viewportFractionTabBarView,
    clipBehaviorTabBarView: clipBehaviorTabBarView,
);

🌟 Features

• Dynamic Tab Management: Users can push or pop items in the List<TabData> tabs array, and the DynamicTabBarWidget will auto-update accordingly.

• Tab Navigation: Implement the onTabChanged callback to handle tab change events.

• Customization Options: Customize the appearance and behavior of the DynamicTabBarWidget using parameters like backIcon, nextIcon, showBackIcon, and showNextIcon.

• Tab Position : Specify the position to which cursor moves to after adding new Tab using the onAddTabMoveTo property.

🧰 Parameters

• dynamicTabs: List of TabData objects representing the dynamic tabs.

• isScrollable: Set to true to enable scrollable tabs.

• onTabChanged: Callback function triggered when a tab is changed.

• onAddTabMoveTo: Enum value (MoveToTab.idol, MoveToTab.last) specifying where a tab navigator should move when Tab is added.

• backIcon: Custom icon for the "Back" button, If isScrollable is false, this property is ignored.

• nextIcon: Custom icon for the "Next" button.

• showBackIcon: Boolean to show or hide the Back icon button, If isScrollable is false, this property is ignored.

• showNextIcon: Boolean to show or hide the Next icon button, If isScrollable is false, this property is ignored.

• leading: Custom leading Widget if needed.

• trailing: Custom trailing Widget if needed.

• TabBar default properties...

• and TabBarView default properties...

📚 How to use

isScrollable

isScrollable: false	isScrollable: true

showBackIcon

If isScrollable is false, this property is ignored.

showBackIcon: false	showBackIcon: true

showNextIcon

If isScrollable is false, this property is ignored.

showNextIcon: false	showNextIcon: true

backIcon

We can use custom Icon for back button, If isScrollable is false, this property is ignored.

backIcon: Icon()	backIcon: null
Icon(Icons.keyboard_double_arrow_left)	Default back icon will be used

nextIcon

We can use custom Icon for next button, If isScrollable is false, this property is ignored.

nextIcon: Icon()	nextIcon: null
Icon(Icons.keyboard_double_arrow_right)	Default back icon will be used

💻 Example

Check out the example app in the example directory for a complete example with additional parameters.

import 'package:flutter/material.dart';
import 'package:dynamic_tabbar/dynamic_tabbar.dart';


class DynamicTabExample extends StatefulWidget {
  const DynamicTabExample({super.key});
  @override
  State<DynamicTabExample> createState() => _DynamicTabExampleState();
}

class _DynamicTabExampleState extends State<DynamicTabExample> {
  bool isScrollable = false;
  bool showNextIcon = true;
  bool showBackIcon = true;

  List<TabData> tabs = [
    TabData(
      index: 1,
      title: const Tab(
        child: Text('Tab 1'),
      ),
      content: const Center(child: Text('Content for Tab 1')),
    ),
    TabData(
      index: 2,
      title: const Tab(
        child: Text('Tab 2'),
      ),
      content: const Center(child: Text('Content for Tab 2')),
    ),
    // Add more tabs as needed
  ];


  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Example for Dynamic Tab'),
      ),
      body: Column(
        mainAxisSize: MainAxisSize.min,
        children: <Widget>[
          Padding(
            padding: const EdgeInsets.all(8.0),
            child: Wrap(
              direction: Axis.horizontal,
              alignment: WrapAlignment.center,
              children: [
                ElevatedButton(
                  onPressed: addTab,
                  child: const Text('Add Tab'),
                ),
                const SizedBox(width: 12),
                ElevatedButton(
                  onPressed: () => removeTab(tabs.length - 1),
                  child: const Text('Remove Last Tab'),
                ),
                const SizedBox(width: 16),
                Row(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    const Text('isScrollable'),
                    Switch.adaptive(
                      value: isScrollable,
                      onChanged: (bool val) {
                        setState(() {
                          isScrollable = !isScrollable;
                        });
                      },
                    ),
                  ],
                ),
                const SizedBox(width: 16),
                Row(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    const Text('showBackIcon'),
                    Switch.adaptive(
                      value: showBackIcon,
                      onChanged: (bool val) {
                        setState(() {
                          showBackIcon = !showBackIcon;
                        });
                      },
                    ),
                  ],
                ),
                const SizedBox(width: 16),
                Row(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    const Text('showNextIcon'),
                    Switch.adaptive(
                      value: showNextIcon,
                      onChanged: (bool val) {
                        setState(() {
                          showNextIcon = !showNextIcon;
                        });
                      },
                    ),
                  ],
                ),
              ],
            ),
          ),
          Expanded(
            child: DynamicTabBarWidget(
              dynamicTabs: tabs,
              isScrollable: isScrollable,
              onTabControllerUpdated: (controller) {},
              onTabChanged: (index) {},
              onAddTabMoveTo: MoveToTab.last,
              showBackIcon: showBackIcon,
              showNextIcon: showNextIcon,
            ),
          ),
        ],
      ),
    );
  }

  void addTab() {
    setState(() {
      var tabNumber = tabs.length + 1;
      tabs.add(
        TabData(
          index: tabNumber,
          title: Tab(
            child: Text('Tab $tabNumber'),
          ),
          content: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              Text('Dynamic Tab $tabNumber'),
              const SizedBox(height: 20),
              ElevatedButton(
                onPressed: () => removeTab(tabNumber - 1),
                child: const Text('Remove this Tab'),
              ),
            ],
          ),
        ),
      );
    });
  }

  void removeTab(int id) {
    setState(() {
      tabs.removeAt(id);
    });
  }
}

📝Contribution

Of course the project is open source, and you can contribute to it repository link

• If you found a bug, open an issue.

• If you have a feature request, open an issue.

• If you want to contribute, submit a pull request.

💳 License

This project is LICENSED under the MIT License. Use it freely, but let's play nice and give credit where it's due!

🎉 Conclusion

I will be happy to answer any questions that you may have on this approach,
If you liked this package, don't forget to show some ❤️ by smashing the ⭐.