NeumorphicUIKit

Add a soft, "raised" neumorphic look to any UIKit view — cards, buttons, any control — using your own colors.

What it does

Styles any UIView, including buttons and other controls.
Uses the colors you give it, so it matches your app.
Keeps itself correct when the user switches between light and dark mode.
Has a pressed look for buttons.

Requirements

iOS 15+ · Swift 5.9

Installation

In Xcode: File → Add Package Dependencies…, then paste:

https://github.com/A-bv/NeumorphicUIKit

Or add it to Package.swift:

.package(url: "https://github.com/A-bv/NeumorphicUIKit", from: "3.2.1")

Usage

Set your colors once, when the app starts (for example in the app delegate):

Neumorphism.configure(NeumorphicColors(
    surface: .myBackground,   // the view's own color
    darkShadow: .myDarkShadow, // the darker edge
    lightShadow: .myLightShadow, // the lighter edge
    bottom: .myBottom))       // used for the pressed look

Then style any view:

card.neumorphism(cornerRadius: 16)

That's it. The view keeps its look correct when the user switches between light and dark mode — you don't have to do anything else.

For that automatic light/dark switch to show, pass dynamic UIColors — ones with light and dark variants (UIColor { $0.userInterfaceStyle == .dark ? … : … } or a color set in your asset catalog) — to configure.

Buttons

Add the pressed look by forwarding a button's touch events:

button.neumorphism(cornerRadius: 16)
button.addTarget(self, action: #selector(down), for: .touchDown)
button.addTarget(self, action: #selector(up), for: [.touchUpInside, .touchUpOutside, .touchCancel])

@objc func down(_ sender: UIView) { sender.pressDown() }
@objc func up(_ sender: UIView)   { sender.pressUp(settle: true) }

Views that change size

The look is built at the view's current size. If a view resizes — an Auto Layout view, or a button whose title grows — keep the look matched to it. From the view controller that owns it:

override func viewDidLayoutSubviews() {
    super.viewDidLayoutSubviews()
    card.resizeNeumorphicShadows()
}