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A Flutter Sliders library for creating highly customizable and UI-rich slider, range slider, and range selector widgets for filtering purposes.

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Flutter Sliders library #

The Flutter Sliders package is written natively in Dart for creating highly interactive and UI-rich slider widgets for filtering purposes in Flutter applications.

Overview #

This library is used to create three different types of sliders, namely slider, range slider, and range selector. All these sliders have a rich set of features such as support for both numeric and date values, tooltip, labels, and ticks. The range selector latter accepts any kind of child including Charts.

Disclaimer: This is a commercial package. To use this package, you need to have either a Syncfusion Commercial License or Free Syncfusion Community license. For more details, please check the LICENSE file.

Table of contents #

Slider features #

  • Numeric and date support - Select numeric and date value. For date, support is provided up to the 'Seconds' interval.

  • Labels - Render labels for the date and numeric ranges with an option to customize formats based on the requirement. slider labels

  • Ticks and divisors - Show ticks and divisors based on the interval. Also, enable minor ticks between the ticks to indicate the selected values. These options show the selected range in a more intuitive way for the end users. slider ticks

  • Tooltip - Render tooltip to show the selected value clearly. It is also possible to customize the format of the text shown in the tooltip. slider tooltip

  • Thumb icon support - Accepts custom widgets like icon or text inside the thumb. slider thumb icon

  • Discrete selection - Provides an option for selecting only discrete numeric and date values.

  • Highly customizable - In addition to the built-in rich set of features, fully customize the control easily using the wide range of provided options. slider customization

  • Orientation - Supports both horizontal and vertical orientations. slider orientation

Range slider features #

Range slider supports all the above-mentioned features of the slider in addition to:

  • Orientation - Supports both horizontal and vertical orientations. range slider orientation

  • Interval selection - Allows users to select a particular interval by tapping or clicking in it. Both thumbs will be moved to the current interval with animation.

Range selector features #

Range selector supports all the above-mentioned features(except orientation) of the range slider in addition to:

  • Child support - Add a child of any type inside the range selector. It is also possible to add Charts. With the built-in integration, range selector is smart enough to handle features like segment selection or zooming of a chart based on the selected range in the range selector. Similar to the range slider, it also supports both numeric and date values.

  • Deferred update - Provides an option to defer range updates, allowing you to control when dependent components are updated while thumbs are being dragged continuously. range selector

Get the demo application #

Explore the full capability of our Flutter widgets on your device by installing our sample browser application from the following app stores. View sample codes in GitHub.

Take a look at the following to learn more about Syncfusion Flutter sliders:

Installation #

Install the latest version from pub.

Slider getting started #

Import the following package.

import 'package:syncfusion_flutter_sliders/sliders.dart';

Add slider to the widget tree #

Add the slider widget as a child of any widget. Here, the slider widget is added as a child of the center widget.

@override
Widget build(BuildContext context) {
    return MaterialApp(
        home: Scaffold(
            body: Center(
                child: SfSlider(),
              ),
          ),
      );
}

Add slider elements #

Add the slider elements such as ticks, labels, and tooltip to show the current position of the slider thumb.

Horizontal slider

double _value = 40.0;

@override
Widget build(BuildContext context) {
  return Scaffold(
     appBar: AppBar(
       title: const Text('Syncfusion Flutter Slider'),
     ),
     body: SfSlider(
       min: 0.0,
       max: 100.0,
       value: _value,
       interval: 20,
       showTicks: true,
       showLabels: true,
       enableTooltip: true,
       minorTicksPerInterval: 1,
       onChanged: (dynamic value){
         setState(() {
           _value = value;
         });
       },
     ),
   );
}

The following screenshot illustrates the result of the above code sample.

horizontal slider

Vertical slider

double _value = 40.0;

@override
Widget build(BuildContext context) {
  return Scaffold(
    appBar: AppBar(
      title: const Text('Syncfusion Flutter Vertical Slider'),
    ),
    body: SfSlider.vertical(
      min: 0.0,
      max: 100.0,
      value: _value,
      interval: 20,
      showTicks: true,
      showLabels: true,
      enableTooltip: true,
      minorTicksPerInterval: 1,
      onChanged: (dynamic value) {
        setState(() {
          _value = value;
        });
      },
    ),
  );
}

vertical slider

Range slider getting started #

Import the following package.

import 'package:syncfusion_flutter_sliders/sliders.dart';

Add range slider to the widget tree #

Add the range slider widget as a child of any widget. Here, the range slider widget is added as a child of the center widget.

@override
Widget build(BuildContext context) {
    return MaterialApp(
        home: Scaffold(
            body: Center(
                child: SfRangeSlider(),
              ),
          ),
      );
}

Add range slider elements #

Add the range slider elements such as ticks, labels, and tooltips to show the current position of the range slider thumb.

Horizontal range slider

SfRangeValues _values = SfRangeValues(40.0, 80.0);

@override
Widget build(BuildContext context) {
   return Scaffold(
     appBar: AppBar(
       title: const Text('Syncfusion Flutter Range Slider'),
     ),
     body: SfRangeSlider(
        min: 0.0,
        max: 100.0,
        values: _values,
        interval: 20,
        showTicks: true,
        showLabels: true,
        enableTooltip: true,
        minorTicksPerInterval: 1,
        onChanged: (SfRangeValues values){
          setState(() {
            _values = values;
          });
        },
      ),
   );
}

The following screenshot illustrates the result of the above code sample.

simple range slider

Vertical range slider

SfRangeValues _values = SfRangeValues(40.0, 80.0);

@override
Widget build(BuildContext context) {
  return Scaffold(
    appBar: AppBar(
      title: const Text('Syncfusion Flutter Vertical Range Slider'),
    ),
    body: SfRangeSlider.vertical(
      min: 0.0,
      max: 100.0,
      values: _values,
      interval: 20,
      showTicks: true,
      showLabels: true,
      enableTooltip: true,
      minorTicksPerInterval: 1,
      onChanged: (SfRangeValues values) {
        setState(() {
          _values = values;
        });
      },
    ),
  );
}

vertical range slider

Range selector getting started #

Import the following package.

import 'package:syncfusion_flutter_sliders/sliders.dart';

Add range selector to the widget tree #

Add the range selector widget as a child of any widget. Here, the range selector widget is added as a child of the center widget.

@override
Widget build(BuildContext context) {
    return MaterialApp(
        home: Scaffold(
            body: Center(
                child: SfRangeSelector(),
            ),
        ),
    );
}

Add range selector elements #

Add a child of any type inside the range selector. Here, the Charts widget is added as a child of the range selector.

final DateTime dateMin = DateTime(2003, 01, 01);
final DateTime dateMax = DateTime(2010, 01, 01);
final SfRangeValues dateValues = 
            SfRangeValues(DateTime(2005, 01, 01), DateTime(2008, 01, 01));

@override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Syncfusion Flutter Range Selector'),
      ),
      body: Container(
          margin: const EdgeInsets.all(0),
          padding: const EdgeInsets.all(0),
          child: Stack(
            children: <Widget>[
              Padding(
                padding: const EdgeInsets.only(top: 10),
                child: Center(
                  child: SfRangeSelector(
                    min: dateMin,
                    max: dateMax,
                    initialValues: dateValues,
                    labelPlacement: LabelPlacement.betweenTicks,
                    interval: 1,
                    dateIntervalType: DateIntervalType.years,
                    dateFormat: DateFormat.y(),
                    showTicks: true,
                    showLabels: true,
                    child: Container(
                      child: SfCartesianChart(
                        margin: const EdgeInsets.all(0),
                        primaryXAxis: DateTimeAxis(
                          minimum: dateMin,
                          maximum: dateMax,
                          isVisible: false,
                        ),
                        primaryYAxis: NumericAxis(isVisible: false, maximum: 4),
                        series: <SplineAreaSeries<Data, DateTime>>[
                          SplineAreaSeries<Data, DateTime>(
                              dataSource: chartData,
                              xValueMapper: (Data sales, int index) => sales.x,
                              yValueMapper: (Data sales, int index) => sales.y)
                        ],
                      ),
                      height: 200,
                    ),
                  ),
                ),
              ),
            ],
          )),
    );
  }

The following screenshot illustrates the result of the above code sample.

simple range selector

Support and Feedback #

About Syncfusion #

Founded in 2001 and headquartered in Research Triangle Park, N.C., Syncfusion has more than 20,000 customers and more than 1 million users, including large financial institutions, Fortune 500 companies, and global IT consultancies.

Today we provide 1,000+ controls and frameworks for web (ASP.NET Core, ASP.NET MVC, ASP.NET WebForms, JavaScript, Angular, React, Vue, and Blazor), mobile (Xamarin, Flutter, UWP, and JavaScript), and desktop development (WinForms, WPF, and UWP). We provide ready-to deploy enterprise software for dashboards, reports, data integration, and big data processing. Many customers have saved millions in licensing fees by deploying our software.

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A Flutter Sliders library for creating highly customizable and UI-rich slider, range slider, and range selector widgets for filtering purposes.

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License

unknown (license)

Dependencies

flutter, intl, syncfusion_flutter_core

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