IrregularGradient

A SwiftUI library for rendering beautiful, animated and irregular gradient views.

Note

This project implements this effect using pure SwiftUI, which can be computationally expensive. If you want something more efficient, please consider switching to FluidGradient.

Installation

This repository is a Swift package, so just include it in your Xcode project and target under File > Add package dependencies. Then, import IrregularGradient to the Swift files where you'll be using it.

Usage

You can add an irregular gradient to your app with the following modifier:

RoundedRectangle(cornerRadius: 24.0, style: .continuous)
    .irregularGradient(colors: [.orange, .pink, .yellow, .orange, .pink, .yellow], backgroundColor: .orange)

The other parameters go as follow:

irregularGradient(colors: [Color], background: () -> View, shouldAnimate: Binding<Bool> = .constant(true), speed: Double = 10)

• colors specifies the colors of each blob. Order and amount matters, so the colors will be stacked in the order of the array on the Z axis. Having two entries of the same color will create two completely distinct blobs of that color.
• background defines the background of your gradient. It's a closure that returns a view. Not specifying this value it will make the background clear.
• shouldAnimate is a boolean that specifies whether or not the gradient blobs should move. It can be enabled and disabled dinamically, and movement will always slow down to a stop. The default value is true.
• speed accepts a Double and defines the speed of the movement — a 0.5 speed means the blobs will update every 2 seconds. The default value is 1.

You can also use the IrregularGradient standalone view, which exists in its own container.

How it's done

The current implementation of this package is done through the creation of blobs (SwiftUI's Ellipse shape) of the specified colors that move and scale randomly in the container, and are then blurred to achieve the desired effect.

Questions

If you have any questions or suggestions, you can create an issue or pull request on this GitHub repository or even contact me via Twitter or email.