A package that supports Bar Chart in a Flutter Sliver

by Flutter Awesome

sliver_bar_chart

A package that supports Bar Chart in a Flutter Sliver. This Package allow us to add Bar Chart in
Sliver and its set a Bar Chart as a Header on Slivers Scroll.

Key Features

  • easy way to add Bar Chart in a Sliver.
  • used to set a Bar Chart as a Sliver Header.

Preview

Basic Usage

Import it to your project file

import 'package:sliver_bar_chart/sliver_bar_chart.dart';

And add it in its most basic form like it:

SliverBarChart(
  barWidget: BarChartWidget(
    minHeight: 100.0,
    maxHeight: 1000.0,
    barValues: [
      BarChartData(
        x: '2022',
        y: 500.0,
        barColor: Colors.blue,
      ),
    ],
    isScrolling: true,
  ),
);

Required parameters of SliverBarChart

Parameter Description
BarChartWidget barWidget Used to paint bar chart using custom painter

Optional parameters of SliverBarChart

Parameter Default Description
bool restrain false Whether to stick the header to the start of the viewport once it has reached its minimum size
bool scrolling – Whether sliver is scrolling or not
List heightArray [50.0, 78.0, 90.0, 67.0, 36.0] The array of height for generating the bars of the Bar Chart
double maxWidth 75.0 The maximum width dimensions of the sliver
double minHeight 30.0 The minimum height dimensions of the sliver
double maxHeight 175.0 The maximum height dimensions of the sliver
bool fluctuating false Whether the header should immediately grow again if the user reverses scroll direction

Required parameters of BarChartWidget

Parameter Description
double minHeight The minimum height dimensions of the BarChartWidget
double maxHeight The maximum height dimensions of the BarChartWidget
List barValues hold the list of bar chart data
bool isScrolling Whether sliver is scrolling or not

Optional parameters of BarChartWidget

Parameter Default Description
int yAxisIntervalCount 5 Used to set interval point on Y axis
double xAxisTextRotationAngle 0.0 Used to set X axis text on a rotation angle in case of larger text

Required parameters of BarChartData Model Class

Parameter Description
String x a text that visible on Bar Chart X axis
double y a value that visible on Bar Chart Y axis

Optional parameters of BarChartData Model Class

Parameter Default Description
Color barColor Colors.grey used to set color of the bar

Guideline for contributors

  • Contribution towards our repository is always welcome, we request contributors to create a pull
    request for development.

Guideline to report an issue/feature request

It would be great for us if the reporter can share the below things to understand the root cause of
the issue.

  • Library version
  • Code snippet
  • Logs if applicable
  • Device specification like (Manufacturer, OS version, etc)
  • Screenshot/video with steps to reproduce the issue
  • Library used

LICENSE!

sliver_bar_chart
is MIT-licensed.

Let us know!

We’d be really happy if you send us links to your projects where you use our component. Just send an
email to sales@mindinventory.com And do let us know if you have any questions or suggestion
regarding our work.

GitHub

View Github