Flutter Moving Background

A high-performance Flutter package for creating beautiful, customizable moving backgrounds.

See an Example here : https://movingbg.netlify.app/

Features

• X High Performance: Optimized with a single Ticker, CustomPainter, and zero-allocation paint loops for smooth 60fps+ animations.
• X Shader Caching: Highly optimized parallax trail rendering in rain animations to prevent frame drops.
• X Beautiful Presets: Built-in design presets (sunset, aurora, cyberpunk, themed).
• X Multiple Background Styles: Includes MovingBackground, BubbleBackground, RainBackground, ConstellationBackground, and WaveBackground.
• X Pause/Resume: Easily pause animations when not needed to save battery.
• X Customizable: Control colors, radius, blur, speed, and more.
• X Lightweight: Minimal impact on your app's widget tree (zero dependencies outside Flutter).

Supported Platforms

• Flutter Android
• Flutter iOS
• Flutter Web
• Flutter Desktop

Getting started

In your flutter project add the dependency:

dependencies:
  flutter_moving_background: ^0.2.0

Import the package:

import 'package:flutter_moving_background/flutter_moving_background.dart';

How to use

1. Moving Circles Presets (One-Liners)

Create beautiful glowing backgrounds instantly using const preset constructors:

// Warm sunset oranges & deep purples
MovingBackground.sunset(child: YourWidget())

// Neon green & dark space blue auroras
MovingBackground.aurora(child: YourWidget())

// Electric magenta & neon cyan cyberpunk theme
MovingBackground.cyberpunk(child: YourWidget())

// Theme-aware color schemes (inherits primary/secondary/tertiary colors from active ThemeData)
MovingBackground.themed(context, child: YourWidget())

2. Custom Moving Circles

MovingBackground(
  backgroundColor: Colors.white,
  animationType: AnimationType.pulse,
  duration: Duration(seconds: 10),
  circles: const [
    MovingCircle(color: Colors.purple, radius: 300),
    MovingCircle(color: Colors.deepPurple, radius: 500),
    MovingCircle(color: Colors.orange, radius: 400),
  ],
  child: Center(child: Text("Hello World")),
)

3. Constellation Background (Interactive Particle Web)

A tech-oriented particle system where floating nodes slowly move. Nearby nodes are connected by dynamic, distance-based web lines. Includes mouse hover / touch attraction.

ConstellationBackground(
  particleCount: 50,
  maxDistance: 120.0,
  speed: 1.0,
  colors: const [Colors.cyanAccent, Colors.pinkAccent],
  lineColor: Colors.white12,
  child: YourWidget(),
)

4. Flowing Waves Background

Layered sine waves that flow horizontally with parallax speeds and customizable wave heights/amplitudes for soothing fluid landscape aesthetics.

WaveBackground(
  waveCount: 3,
  speed: 1.0,
  amplitude: 25.0,
  frequency: 0.005,
  colors: const [Colors.blue, Colors.teal, Colors.cyan],
  child: YourWidget(),
)

5. Bubble Background

BubbleBackground(
  numBubbles: 15,
  colors: [Colors.blue, Colors.purple],
  speed: 1.5,
  child: YourWidget(),
)

6. Rain Background

RainBackground(
  numberOfDrops: 100,
  fallSpeed: 2.0,
  hasTrail: true,
  colors: const [Colors.blue],
  child: YourWidget(),
)

Animation Types

Type	Description
moveAndFade	Circles move to random positions while fading in and out.
pulse	Circles move while their size and opacity pulse rhythmically.
scale	Circles scale from zero to full size and back as they move.
move	Circles move at constant opacity and size.

Contributing

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 feature, please send a pull request.