parallel_scroll_view 0.0.1

  • Readme
  • Changelog
  • Installing
  • 49

parallel_scroll_view #

A widget that can scroll multiple ScrollView at once

Demo #


class ParallelScrollViewDemo extends StatefulWidget {
  _ParallelScrollViewDemoState createState() =>

class _ParallelScrollViewDemoState
    extends State<ParallelScrollViewDemo> {
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(),
      body: ParallelScrollView(
        scrollDirection: Axis.vertical,
        behavior: ParallelScrollBehavior.Interpolate,
        padding: EdgeInsets.all(12),
        children: <Widget>[
            height: 100,
            width: 100,
            children: _getList(10, 100, 100,,
            height: 100,
            width: 100,
            children: _getList(7, 100, 100,,
            height: 50,
            width: 100,
            children: _getList(10, 150, 50, Colors.yellow),

  Container _buildLabel() {
    return Container(
      height: 40,
      width: 100,
      margin: EdgeInsets.all(12),
      child: Text("Label"),

  List<Widget> _getList(int count, double width, double height, Color color) {
    return List.generate(
        (i) => Container(
              margin: EdgeInsets.only(right: 12),
              width: width,
              height: height,
              color: color,
              child: Text("Item $i"),

[0.0.1] 2020-04-12 #

Use this package as a library

1. Depend on it

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

  parallel_scroll_view: ^0.0.1

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:parallel_scroll_view/parallel_scroll_view.dart';
Describes how popular the package is relative to other packages. [more]
Code health derived from static analysis. [more]
Reflects how tidy and up-to-date the package is. [more]
Weighted score of the above. [more]
Learn more about scoring.

We analyzed this package on Jul 14, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.8.4
  • pana: 0.13.15
  • Flutter: 1.17.5

Analysis suggestions

Package not compatible with SDK dart


  • parallel_scroll_view that is a package requiring null.

Health suggestions

Fix lib/parallel_scroll_view.dart. (-0.50 points)

Analysis of lib/parallel_scroll_view.dart reported 1 hint:

line 178 col 12: The member 'lerp' can only be used within instance members of subclasses of 'package:flutter/src/animation/tween.dart'.

Maintenance suggestions

Maintain an example. (-10 points)

Create a short demo in the example/ directory to show how to use this package.

Common filename patterns include main.dart, example.dart, and parallel_scroll_view.dart. Packages with multiple examples should provide example/

For more information see the pub package layout conventions.

Package is pre-v0.1 release. (-10 points)

While nothing is inherently wrong with versions of 0.0.*, it might mean that the author is still experimenting with the general direction of the API.

The package description is too short. (-8 points)

Add more detail to the description field of pubspec.yaml. Use 60 to 180 characters to describe the package, what it does, and its target use case.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.1.0 <3.0.0
flutter 0.0.0
Transitive dependencies
collection 1.14.12 1.14.13
meta 1.1.8 1.2.2
sky_engine 0.0.99
typed_data 1.1.6 1.2.0
vector_math 2.0.8 2.1.0-nullsafety
Dev dependencies