Detalhes do pacotev0.1.0

timelines

Um pacote de linha do tempo poderoso e fácil de usar para o Flutter. Todos os componentes da interface do usuário neste pacote são widgets separados.

pub.dev Documentação da API Código-fonte

Downloads em 30 dias: 8,3 mil
Curtidas: 1,8 mil
Pontos Pub: 70

Instalar pacote

flutter pub add timelines

Visão geral do pacote

Orientação gerada a partir de informações públicas. Apenas para referência.

O pacote timelines é uma biblioteca flexível e amigável do Flutter projetada para criar interfaces de linha do tempo personalizáveis. Ele fornece widgets modulares e independentes que permitem aos desenvolvedores criar linhas do tempo complexas com facilidade. Cada componente — como itens da linha do tempo, conectores e indicadores — é implementado como um widget separado, permitindo controle fino sobre layout e estilos. Ideal para exibir dados cronológicos, como andamento de projetos, históricos de eventos ou fluxos de processos, suporta tanto orientações vertical quanto horizontal. O pacote enfatiza simplicidade e extensibilidade, tornando-o adequado para aplicativos que exigem linhas do tempo limpas e interativas.

Casos de uso

Exibindo marcos do projeto
Mostrando histórico de eventos nos aplicativos
Visualizando processos passo a passo
Criando sequências de onboarding
Apresentando dados históricos
Construindo interfaces de rastreamento de tarefas

Principais recursos

Componentes modulares de widget
Suporte para layouts vertical e horizontal
Conectores e indicadores personalizáveis
Integração fácil com aplicativos Flutter existentes
Design extensível para estilos personalizados
Funcionalidade leve e focada

Indicado para

Desenvolvedores criando interfaces baseadas em cronologia
Aplicativos que precisam de rastreamento visual de progresso
Aplicações educacionais ou produtivas
Fluxos de onboarding ou tutoriais
Designers que querem elementos de linha do tempo reutilizáveis

Considerações

animações internas limitadas
Sem tratamento automático de alinhamento de itens
Requer gerenciamento manual de layout
Não otimizado para cronogramas muito longos
Sem suporte para gestos de toque nos itens
Mais adequado para cronogramas estáticos ou simplesmente dinâmicos

README original

Snapshot do README original do repositório-fonte vinculado. Consulte o repositório para o conteúdo mais recente.

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, ), )