flutter_parallax

A Flutter widget that moves according to a scroll controller.

Pub

Features

  • Can contain any widget.
  • Configurable parallax scroll direction.
  • Customizable parallax delegate.
  • For widgets inside and outside a scroll view (list items and list backgrounds for example).

Screenshot

Getting started

In the pubspec.yaml of your flutter project, add the following dependency:

dependencies:
  ...
  flutter_parallax: "^0.1.2"

In your library add the following import:

import 'package:flutter_parallax/flutter_parallax.dart';

For help getting started with Flutter, view the online documentation.

Example

new Parallax.inside(
    child: new Image.network('https://flutter.io/images/homepage/header-illustration.png'),
    mainAxisExtent: 150.0,
);

You can find more examples in the Example project.

Constructors

  • The Parallax.inside, that computes the parallax offset from its position in its first Scrollable parent. Useful for list or grid items.
  • The Parallax.outside, that computes the parallax offset from the percentage of the scrollable's container extent. Useful for a list or grid background.
  • The Parallax.custom takes a ParallaxDelegate, which provides the ability to customize additional aspects of the child model. For example, a ParallaxDelegate can control the algorithm used to computes the parallax offset of the child within its parent.

Changelog

Please see the Changelog page to know what's recently changed.

Contributions

Feel free to contribute to this project.

If you find a bug or want a feature, but don't know how to fix/implement it, please fill an issue.
If you fixed a bug or implemented a new feature, please send a pull request.

Libraries

flutter_parallax

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]