SwiftUI-Shimmer ✨

Shimmer is a super-light modifier that adds a "shimmering" effect to any SwiftUI View, for example, to show that an operation is in progress. It works well on light and dark modes, left-to-right and right-to-left layout directions, and across all Apple platforms: iOS, macOS, tvOS, watchOS and even visionOS! 📱💻🖥️📺⌚️🥽✨

Usage

import SwiftUI
import Shimmer
⋮
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Text("SwiftUI Shimmer").modifier(Shimmer())

or more conveniently

Text("SwiftUI Shimmer").shimmering()

Optional Parameters ⚙️

• active: Convenience parameter to conditionally enable the effect. Defaults to true.
• animation: A custom animation. Defaults to Shimmer.defaultAnimation.
• gradient: A custom gradient. Defaults to Shimmer.defaultGradient.
• bandSize: The size of the animated mask's "band". Defaults to 0.2 unit points, which corresponds to 20% of the extent of the gradient.

Backward Compatible Parameters

• active: Convenience parameter to conditionally enable the effect. Defaults to true.
• duration: The duration of a shimmer cycle in seconds. Default: 1.5.
• bounce: Whether to bounce (reverse) the animation back and forth. Defaults to false.
• delay: A delay in seconds. Defaults to 0.

Custom Animations

You can supply any custom animation:

Text("Loading...")
    .shimmering(
        active: isAnimating,
        animation: .easeInOut(duration: 2).repeatCount(5, autoreverses: false).delay(1)
    )

Gradient Mode

In addition to the original masking mode (which is still the default), Shimmer now supports additional modes to apply the gradient, including as a background or an overlay with a custom blend mode:

Text("Custom Gradient Mode").bold()
    .font(.largeTitle)
    .shimmering(
        gradient: Gradient(colors: [.clear, .orange, .white, .green, .clear]),
        bandSize: 0.5,
        mode: .overlay()
    )

Animated Skeletons ☠️

Of course, you can combine .shimmering(...) with the .redacted(...) modifier to create interesting animated skeleton views.

Text("Some text")
    .redacted(reason: .placeholder)
    .shimmering()

Right-To-Left (RTL) Support

The mask and animation now adjusts automatically to the environment's layoutDirection in order to better support different languages and locales.

Installation

Swift Package Manager

Use the package URL or search for the SwiftUI-Shimmer package: https://github.com/markiv/SwiftUI-Shimmer.

For how-to integrate package dependencies refer to Adding Package Dependencies to Your App documentation.

Cocoapods

Add this to your Podfile:

pod 'SwiftUI-Shimmer', :git => 'https://github.com/markiv/SwiftUI-Shimmer.git'

What About UIKit?

For an older, UIKit-based shimmer effect, see UIView-Shimmer.