Package detailsv0.1.0

timelines

A powerful & easy to use timeline package for Flutter. All UI components in this package are separate widgets.

pub.dev API documentation Source code

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Install package

flutter pub add timelines

Package Overview

Package selection guidance compiled from public package information, community data, and project usage.

The timelines package is a flexible and user-friendly Flutter library designed to create customizable timeline UIs. It provides modular, standalone widgets that allow developers to build complex timelines with ease. Each component—such as timeline items, connectors, and indicators—is implemented as a separate widget, enabling fine-grained control over layout and styling. Ideal for displaying chronological data like project progress, event histories, or process flows, it supports both vertical and horizontal orientations. The package emphasizes simplicity and extensibility, making it suitable for apps requiring clean, interactive timelines.

Use cases

Displaying project milestones
Showing event history in apps
Visualizing step-by-step processes
Creating onboarding sequences
Presenting historical data
Building task tracking interfaces

Key features

Modular widget components
Support for vertical and horizontal layouts
Customizable connectors and indicators
Easy integration with existing Flutter apps
Extensible design for custom styling
Lightweight and focused functionality

Suitable for

Developers building chronology-based UIs
Apps needing visual progress tracking
Educational or productivity applications
Onboarding or tutorial flows
Designers wanting reusable timeline elements

Considerations

Limited built-in animations
No automatic item alignment handling
Requires manual layout management
Not optimized for very long timelines
No support for touch gestures on items
Best suited for static or simple dynamic timelines

Original README

Original README snapshot from the linked source repository. Visit the repository for the latest content.

A powerful & easy to use timeline package for Flutter! 🚀

Caveat: This package is an early stage. Not enough testing has been done to guarantee stability. Some APIs may change.

Examples

Check it out on the web or look at the source code.

Timeline status	Package delivery tracking	Process timeline

More examples
🚧 WIP 🚧

Features

The timeline and each components are all WIDGET.

Common styles can be easily implemented with predefined components.
Vertical, horizontal direction.
Alternating contents.
Combination with Flutter widgets(Row, Column, CustomScrollView, etc).
Customize each range with themes.

Installation

1. Depend on it

Add this to your package's pubspec.yaml file:

dependencies:
  timelines: ^[latest_version]

2. Install it

You can install packages from the command line:

with Flutter:

$ flutter pub get

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:timelines/timelines.dart';

Basic Usage

@override
Widget build(BuildContext context) {
  return Timeline.tileBuilder(
    builder: TimelineTileBuilder.fromStyle(
      contentsAlign: ContentsAlign.alternating,
      contentsBuilder: (context, index) => Padding(
        padding: const EdgeInsets.all(24.0),
        child: Text('Timeline Event $index'),
      ),
      itemCount: 10,
    ),
  );
}

Check the Example or the API reference for more details.

Components

Theme

Check out Theme Demo to see how the values inside TimelineTile work with the theme.

To customize the timeline component with a theme, do the following:

TimelineTheme(
  data: TimelineThemeData(...),
  child: DotIndicator(...),
);

If you only want to change part of the parent theme, use TimelineTheme.of(context):

TimelineTheme(
  data: TimelineThemeData.of(context).copyWith(...),
  child: DotIndicator(...),
);

If the component you want to customize is Timeline or FixedTimeline, this is also possible:

FixedTimeline(
  theme: TimelineThemeData(...),
  children: [...],
);

Indicator

ContainerIndicator
	ContainerIndicator( child: Container( width: 15.0, height: 15.0, color: Colors.blue, ), )
DotIndicator
	DotIndicator()
OutlinedDotIndicator
	OutlinedDotIndicator()

Connector

SolidLineConnector
	SizedBox( height: 20.0, child: SolidLineConnector(), )
DashedLineConnector
	SizedBox( height: 20.0, child: DashedLineConnector(), )
DecoratedLineConnector
	SizedBox( height: 20.0, child: DecoratedLineConnector( decoration: BoxDecoration( gradient: LinearGradient( begin: Alignment.topCenter, end: Alignment.bottomCenter, colors: [Colors.blue, Colors.lightBlueAccent[100]], ), ), ), )

TimelineNode

Pure timeline UI component with no content.

The TimelineNode contains an indicator and two connectors on both sides of the indicator:

Simple TimelineNode
	SizedBox( height: 50.0, child: TimelineNode.simple(), )
Complex TimelineNode
	SizedBox( height: 80.0, child: TimelineNode( indicator: Card( margin: EdgeInsets.zero, child: Padding( padding: EdgeInsets.all(8.0), child: Text('Complex'), ), ), startConnector: DashedLineConnector(), endConnector: SolidLineConnector(), ), )

Simple TimelineNode

SizedBox(
  height: 50.0,
  child: TimelineNode.simple(),
)

Complex TimelineNode

SizedBox(
  height: 80.0,
  child: TimelineNode(
    indicator: Card(
      margin: EdgeInsets.zero,
      child: Padding(
        padding: EdgeInsets.all(8.0),
        child: Text('Complex'),
      ),
    ),
    startConnector: DashedLineConnector(),
    endConnector: SolidLineConnector(),
  ),
)

TimelineTile

Displays content on both sides of the node:

TimelineTile
	TimelineTile( oppositeContents: Padding( padding: const EdgeInsets.all(8.0), child: Text('opposite\ncontents'), ), contents: Card( child: Container( padding: EdgeInsets.all(8.0), child: Text('contents'), ), ), node: TimelineNode( indicator: DotIndicator(), startConnector: SolidLineConnector(), endConnector: SolidLineConnector(), ), )

TimelineTile

TimelineTile(
  oppositeContents: Padding(
    padding: const EdgeInsets.all(8.0),
    child: Text('opposite\ncontents'),
  ),
  contents: Card(
    child: Container(
      padding: EdgeInsets.all(8.0),
      child: Text('contents'),
    ),
  ),
  node: TimelineNode(
    indicator: DotIndicator(),
    startConnector: SolidLineConnector(),
    endConnector: SolidLineConnector(),
  ),
)

TimelineTileBuilder

TimelineTileBuilder provides powerful build features.

Connection

Each tile draws only half of the line connecting the neighboring tiles. Using the connected constructor, lines connecting adjacent tiles can build as one index.

ConnectionDirection.before
	FixedTimeline.tileBuilder( builder: TimelineTileBuilder.connectedFromStyle( connectionDirection: ConnectionDirection.before, connectorStyleBuilder: (context, index) { return (index == 1) ? ConnectorStyle.dashedLine : ConnectorStyle.solidLine; }, indicatorStyleBuilder: (context, index) => IndicatorStyle.dot, itemExtent: 40.0, itemCount: 3, ), )
ConnectionDirection.after
	FixedTimeline.tileBuilder( builder: TimelineTileBuilder.connectedFromStyle( connectionDirection: ConnectionDirection.after, connectorStyleBuilder: (context, index) { return (index == 1) ? ConnectorStyle.dashedLine : ConnectorStyle.solidLine; }, indicatorStyleBuilder: (context, index) => IndicatorStyle.dot, itemExtent: 40.0, itemCount: 3, ), )

ConnectionDirection.before

FixedTimeline.tileBuilder(
  builder: TimelineTileBuilder.connectedFromStyle(
    connectionDirection: ConnectionDirection.before,
    connectorStyleBuilder: (context, index) {
      return (index == 1) ? ConnectorStyle.dashedLine : ConnectorStyle.solidLine;
    },
    indicatorStyleBuilder: (context, index) => IndicatorStyle.dot,
    itemExtent: 40.0,
    itemCount: 3,
  ),
)

ConnectionDirection.after

FixedTimeline.tileBuilder(
  builder: TimelineTileBuilder.connectedFromStyle(
    connectionDirection: ConnectionDirection.after,
    connectorStyleBuilder: (context, index) {
      return (index == 1) ? ConnectorStyle.dashedLine : ConnectorStyle.solidLine;
    },
    indicatorStyleBuilder: (context, index) => IndicatorStyle.dot,
    itemExtent: 40.0,
    itemCount: 3,
  ),
)

ContentsAlign

This value determines how the contents of the timeline will be built:

ContentsAlign.basic
	FixedTimeline.tileBuilder( builder: TimelineTileBuilder.connectedFromStyle( contentsAlign: ContentsAlign.basic, oppositeContentsBuilder: (context, index) => Padding( padding: const EdgeInsets.all(8.0), child: Text('opposite\ncontents'), ), contentsBuilder: (context, index) => Card( child: Padding( padding: const EdgeInsets.all(8.0), child: Text('Contents'), ), ), connectorStyleBuilder: (context, index) => ConnectorStyle.solidLine, indicatorStyleBuilder: (context, index) => IndicatorStyle.dot, itemCount: 3, ), )
ContentsAlign.reverse
	FixedTimeline.tileBuilder( builder: TimelineTileBuilder.connectedFromStyle( contentsAlign: ContentsAlign.reverse, oppositeContentsBuilder: (context, index) => Padding( padding: const EdgeInsets.all(8.0), child: Text('opposite\ncontents'), ), contentsBuilder: (context, index) => Card( child: Padding( padding: const EdgeInsets.all(8.0), child: Text('Contents'), ), ), connectorStyleBuilder: (context, index) => ConnectorStyle.solidLine, indicatorStyleBuilder: (context, index) => IndicatorStyle.dot, itemCount: 3, ), )
ContentsAlign.alternating
	FixedTimeline.tileBuilder( builder: TimelineTileBuilder.connectedFromStyle( contentsAlign: ContentsAlign.alternating, oppositeContentsBuilder: (context, index) => Padding( padding: const EdgeInsets.all(8.0), child: Text('opposite\ncontents'), ), contentsBuilder: (context, index) => Card( child: Padding( padding: const EdgeInsets.all(8.0), child: Text('Contents'), ), ), connectorStyleBuilder: (context, index) => ConnectorStyle.solidLine, indicatorStyleBuilder: (context, index) => IndicatorStyle.dot, itemCount: 3, ), )