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In SwiftUI, there’s a handy built-in modifier referred to as cornerRadius that lets you simply create rounded corners for a view. By making use of the cornerRadius modifier to a Rectangle view, you’ll be able to rework it right into a rounded rectangle. The worth you present to the modifier determines the extent of the rounding impact.
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Rectangle() .cornerRadius(10.0) |
Alternatively, SwiftUI additionally offers a regular RoundedRectangle view for making a rounded rectangle:
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RoundedRectangle(cornerRadius: 25.0) |
Sadly, each the cornerRadius modifier and the RoundedRectangle view can solely apply the identical nook radius to all corners of the form.
What if it’s worthwhile to spherical a selected nook of a view?
In iOS 17, the SwiftUI framework introduces a brand new view referred to as UnevenRoundedRectangle. What units this view aside is the power to specify a definite radius worth for every nook, permitting builders to create extremely customizable shapes.
Word: We’ve a tutorial on UIKit exhibiting you the way to spherical particular corners.
Working with UnevenRoundedRectangle
With UnevenRoundedRectangle, you’ll be able to simply create rectangular shapes with rounded corners of various radii. To make use of UnevenRoundedRectangle, you merely must specify the nook radius for every nook. Right here is an instance:
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UnevenRoundedRectangle(cornerRadii: .init( topLeading: 50.0, bottomLeading: 10.0, bottomTrailing: 50.0, topTrailing: 30.0), fashion: .steady) .body(width: 300, peak: 100) .foregroundStyle(.indigo) |
Optionally, you’ll be able to point out the fashion of the corners. A steady nook fashion will give the corners a smoother look. If you happen to’ve put the code above in Xcode 15, you’ll be able to create an oblong form like beneath.
You should use this form and rework it right into a button through the use of the background modifier. Here’s a pattern code snippet:
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Button(motion: {
}) { Textual content(“Register”) .font(.title) } .tint(.white) .body(width: 300, peak: 100) .background { UnevenRoundedRectangle(cornerRadii: .init( topLeading: 50.0, bottomLeading: 10.0, bottomTrailing: 50.0, topTrailing: 30.0), fashion: .steady) .foregroundStyle(.indigo) } |
Animating the Rounded Corners
To animate the rounded corners of the UnevenRoundedRectangle, you should use the withAnimation operate and toggle a Boolean variable. Right here is an instance code snippet:
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struct AnimatedCornerView: View {
@State personal var animate = false
var physique: some View {
UnevenRoundedRectangle(cornerRadii: .init( topLeading: animate ? 10.0 : 80.0, bottomLeading: animate ? 80.0 : 10.0, bottomTrailing: animate ? 80.0 : 10.0, topTrailing: animate ? 10.0 : 80.0)) .foregroundStyle(.indigo) .body(peak: 200) .padding() .onTapGesture { withAnimation { animate.toggle() } }
} } |
On this instance, tapping the rectangle will toggle the animate variable, which controls the nook radii of the rectangle. The withAnimation operate will animate the transition between the 2 units of nook radii.
Creating Distinctive Shapes
By overlapping a number of UnevenRoundedRectangle views, you’ll be able to create all kinds of shapes. The instance offered above demonstrates the way to create the particular form proven utilizing the next code:
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ZStack { ForEach(0..<18, id: .self) { index in UnevenRoundedRectangle(cornerRadii: .init(topLeading: 20.0, bottomLeading: 5.0, bottomTrailing: 20.0, topTrailing: 10.0), fashion: .steady) .foregroundStyle(.indigo) .body(width: 300, peak: 30) .rotationEffect(.levels(Double(10 * index))) } } .overlay { Picture(systemName: “briefcase”) .foregroundStyle(.white) .font(.system(dimension: 100)) } |
So as to add a further visible impact, you’ll be able to animate the change in opacity by modifying the code as follows:
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ZStack { ForEach(0..<18, id: .self) { index in UnevenRoundedRectangle(cornerRadii: .init(topLeading: 20.0, bottomLeading: 5.0, bottomTrailing: 20.0, topTrailing: 10.0), fashion: .steady) .foregroundStyle(.indigo) .body(width: 300, peak: 30) .opacity(animate ? 0.6 : 1.0) .rotationEffect(.levels(Double(10 * index))) .animation(.easeInOut.delay(Double(index) * 0.02), worth: animate) } } .overlay { Picture(systemName: “briefcase”) .foregroundStyle(.white) .font(.system(dimension: 100)) } .onTapGesture { animate.toggle() } |
Implementing this modification will end in a visually fascinating impact that provides an additional degree of curiosity to your design.
Abstract
The addition of the UnevenRoundedRectangle view in SwiftUI offers builders with a handy answer for rounding particular corners of rectangular views. It additionally provides you the flexibleness and choices to attain the look you need. With the UnevenRoundedRectangle form, you’ll be able to seamlessly incorporate distinctive and attention-grabbing shapes into your app, enhancing its total design and person expertise.
Founding father of AppCoda. Writer of a number of iOS programming books together with Starting iOS Programming with Swift and Mastering SwiftUI. iOS App Developer and Blogger. Comply with me at Fb, Twitter and Google+.
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