WAVE

---

A Flutter package for displaying animated wave backgrounds.

Demo

Platform	URL
Web	wave.glorylab.xyz

The web demo is an interactive generator. Adjust the config mode, palette, layer count, height, amplitude, speed, and loop behavior, then copy the generated WaveWidget code into your app.

Deployment

The web demo is built from example/ and deployed with Cloudflare Workers Static Assets. See docs/cloudflare-workers.md for the GitHub Actions and migration setup.

Install

dependencies:
  wave: ^0.2.4

Minimal Example

import 'package:flutter/material.dart';
import 'package:wave/wave.dart';

class WaveBackground extends StatelessWidget {
  const WaveBackground({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return WaveWidget(
      config: SingleConfig(
        color: Color(0xFF00BBF9),
        layers: 3,
      ),
      size: Size(double.infinity, double.infinity),
    );
  }
}

Use WaveWidget anywhere a normal widget can be painted. Give it a bounded parent, such as SizedBox.expand, Positioned.fill, or a fixed-height container.

Config Modes

Single color

SingleConfig creates layered waves from one base color.

WaveWidget(
  config: SingleConfig(
    color: const Color(0xFF00BBF9),
    layers: 3,
  ),
  size: const Size(double.infinity, double.infinity),
)

Seeded random colors

RandomConfig creates generated colors for each layer. Provide seed when deterministic output is useful for tests, demos, or copyable examples. Omit seed only when you really want a new generated palette for each config construction.

WaveWidget(
  config: RandomConfig(
    seed: 7,
    layers: 4,
  ),
  size: const Size(double.infinity, double.infinity),
)

Custom colors or gradients

CustomConfig is the most explicit mode. Use it when you want full control over each layer's color or gradient, duration, and height.

WaveWidget(
  config: CustomConfig(
    gradients: const [
      [Color(0xFF00BBF9), Color(0xFF9B5DE5)],
      [Color(0xFFFEE440), Color(0xFFF15BB5)],
    ],
    durations: const [5000, 4000],
    heightPercentages: const [0.65, 0.66],
  ),
  size: const Size(double.infinity, double.infinity),
)

Parameters

WaveWidget

Parameter	Type	Default	Description
config	Config	required	Layer colors, durations, heights, and blur.
size	Size	required	Paint size for the wave stack.
waveAmplitude	double	20.0	Base vertical movement of the wave path.
wavePhase	double	10.0	Initial phase offset for the animation.
waveFrequency	double	1.6	Horizontal frequency of the wave path.
duration	int?	6000	Total runtime in milliseconds when isLoop is false.
backgroundColor	Color?	null	Background color behind the waves.
backgroundImage	DecorationImage?	null	Background image behind the waves.
isLoop	bool	true	Whether animations repeat indefinitely.

Config classes

Class	Best for	Key parameters
SingleConfig	One-color layered waves	color, layers, opacityPercentages, durations, heightPercentages
RandomConfig	Fast generated palettes	layers, seed, colors, durations, heightPercentages
CustomConfig	Exact colors or gradients	colors or gradients, durations, heightPercentages, gradientBegin, gradientEnd

Common Errors

CustomConfig requires exactly one of colors or gradients.

CustomConfig(
  colors: const [Color(0xFF00BBF9)],
  gradients: const [
    [Color(0xFF00BBF9), Color(0xFF9B5DE5)],
  ],
  durations: const [5000],
  heightPercentages: const [0.65],
)

All per-layer lists must have the same length.

CustomConfig(
  colors: const [Color(0xFF00BBF9), Color(0xFF9B5DE5)],
  durations: const [5000],
  heightPercentages: const [0.65, 0.66],
)

heightPercentages and opacityPercentages values must be between 0 and 1, and every duration must be positive.