The easiest way to create Neumorphic Style UI with SwiftUI

Hi, I’m Costa. It is simple to create outer shadow in SwiftUI by writing two lines of code. However, we can’t easily create inner shadow in SwiftUI. That’s the reason why I build this tool to make it simple and reusable.

Neumorphic is a SwiftUI utility to build Neumorphism Soft UI easily using custom view modifier and custom button style. It supports all shapes. It’s open source and it’s on GitHub!
https://github.com/costachung/neumorphic

Import Neumorphic package to your view.

import Neumorphic

Simply use .softOuterShadow and .softInnerShadow methods to create outer shadow and inner shadow respectively.

Create Rounded Rectangle with Outer Shadow

RoundedRectangle(cornerRadius: 20)
.fill(Neumorphic.shared.mainColor())
.softOuterShadow()

Create Rounded Rectangle with Inner Shadow

RoundedRectangle(cornerRadius: 20)
.fill(Neumorphic.shared.mainColor())
.softInnerShadow(RoundedRectangle(cornerRadius: 20))
HStack {
Circle().softOuterShadow()
Circle().softInnerShadow(Circle())
}
Button(action: {}) {
Text("Soft Button").fontWeight(.bold)
}
.softButtonStyle(RoundedRectangle(cornerRadius: 20))
HStack {
Button(action: {}) {
Image(systemName: "heart.fill")
}.softButtonStyle(Circle())
Button(action: {}) {
Image(systemName: "heart.fill")
}.softButtonStyle(Circle(), mainColor: Color.red, textColor: Color.white, darkShadowColor: Color(rgb: 0x993333, alpha: 1), lightShadowColor:Color("redButtonLightShadow"))
}

Customization

You can change the color, spread of the shadow, and the shadow radius of the inner shadow.

softInnerShadow<S : Shape>(_ content: S, darkShadow: Color, lightShadow: Color, spread: CGFloat, radius: CGFloat)

You can change the color, offset of the shadow, and the shadow radius of the outer shadow.

softOuterShadow(darkShadow: Color, lightShadow: Color, offset: CGFloat, radius:CGFloat)

Example of using background method to add it under TextField:

VStack {
HStack {
Image(systemName:"magnifyingglass")
.foregroundColor(secondaryColor)
.font(Font.body.weight(.bold))

TextField("Search ...", text: $name)
.foregroundColor(secondaryColor)
}
.padding()
.background(
RoundedRectangle(cornerRadius: 30)
.fill(mainColor)
.softInnerShadow(RoundedRectangle(cornerRadius: 30), darkShadow: darkShadowColor, lightShadow: lightShadowColor, spread: 0.05, radius: 2)
)
}
.padding()

Or, something like this:

ZStack(alignment: .bottom){
RoundedRectangle(cornerRadius: 20)
.fill(mainColor)
.softInnerShadow(RoundedRectangle(cornerRadius: 20), darkShadow: darkShadow, lightShadow: lightShadow, spread: 0.3, radius: 2)
.frame(width: 30, height:150)

RoundedRectangle(cornerRadius: 20)
.fill(barColor)
.frame(width: 30, height:100)
}

Example Project

Check out the neumorphic-ios-example XCode project to see how to build neumorphic UI and buttons. If you use the default shadow colors of Neumorphic, you can also get dark mode support for free.

Soft Button Style Customization

softButtonStyle<S : Shape>(_ content: S, padding: CGFloat, mainColor: Color, textColor: Color, darkShadowColor: Color, lightShadowColor: Color, pressedEffect: SoftButtonPressedEffect)

Soft Button — Pressed Effects

HStack {
Spacer()
Button(action: {}) {
Text(".none").fontWeight(.bold)
}.softButtonStyle(Capsule(), pressedEffect: .none)
Spacer()
Button(action: {}) {
Text(".flat").fontWeight(.bold)
}.softButtonStyle(Capsule(), pressedEffect: .flat)
Spacer()
Button(action: {}) {
Text(".hard").fontWeight(.bold)
}.softButtonStyle(Capsule(), pressedEffect: .hard)
Spacer()
}

Contacts

https://twitter.com/costachung

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