Button Animation in Rive

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Create a simple button animation with timing and clipping in Rive and SwiftUI

Play video

Build an Animated App with Rive and SwiftUI

9:55

Background Animation in Rive

8:23

Button Animation in Rive

10:52

Custom Fonts

14:39

Custom Modal

12:54

Modal Transition

12:15

Loading and Success Animation

13:05

Tab Bar Animated Icons

9:15

Tab Bar Selection

7:14

Icon Animation in Rive

13:44

Layout and Card Components

18:03

Side Menu Animated Icons

10:47

Side Menu Selection

10:32

Side Menu Animation

6:52

Main View Animation

15:22

Export Button SVG

In Figma, go to the Assets page and export the button elements to SVG, which includes 3 shapes.

Button Animation in Rive image 1

Create New Rive File

Set the Artboard to 236x64 . Rename it to Button . Drag and drop the SVG files to the Rive editor and copy the shapes to the main Artboard. Place them according to the design.

Button Animation in Rive image 2

Animating the Button

Switch to Animate mode and rename the current animation to idle . Create another animation called active . In Rive, you can have multiple animations on the same Artboard. Set the duration to 00:01:00 (1 second) and set the workspace accordingly.

Animate the Rectangle:

00:00:00 Scale 100%
00:00:10 Scale 86%
00:00:30 Scale 100%

Animate the Shape:

00:00:00 X 34.5 Y 31.5 Scale 100%
00:00:10 X 54 Y 36 Scale 65%
00:00:30 X 34.5 Y 31.5 Scale 100%

Animation Timing

To make your animations more interesting, you can change the interpolation for each keyframe. The timing can be hold , linear or cubic bezier which use a set of 4 numbers separated by commas.

You can select multiple keyframes at once to apply the interpolation.

You can also animate each property separately by expanding an element.

Clipping

Clipping is another interesting animation technique. It can be applied on the Border element to create a line animation.

In order to achieve this, we need to create a new element called Clip:

Position X 122 Y 36
Size W 230 H 60
Fill 0%

Then, select Border and click on the + icon next to Clipping in the Inspector. It will ask you to select a shape. Then, select the Clip element. This will effectively apply clipping using the Clip element.

Clip Animation

Now we can animate the Clip element in Animate mode:

00:00:20 Scale X 0%
00:00:45 Scale X 100%

Additionally, let’s animate the opacity of the Border element:

00:00:45 Layer Opacity 100%
00:01:00 Layer Opacity 0%

Once the animation is done, export the .riv file for newest runtime.

Button in SwiftUI

In OnboardingView, let’s put the previous RiveViewModel inside a background modifier. We’ll create a new ZStack and add the animated button above. Set the frame to the same size and add an overlay that includes a text and icon.

ZStack {
		background

    RiveViewModel(fileName: "button").view()
        .frame(width: 236, height: 64)
        .overlay(
            Label("Start the course", systemImage: "arrow.forward")
                .offset(x: 4, y: 4)
                .font(.headline)
        )
}

var background: some View {
    // RiveViewModel shapes
}

Play Animation

The RiveViewModel has methods to play and pause specific animations. To do that, the Rive asset must be declared first. If you have an animation that automatically plays, you can set autoplay to false.

let button = RiveViewModel(fileName: "button", autoplay: false)

Now we can reference the button and add a tap gesture that plays the animation. When you use the methods, it is important to add try? first.

button.view()
.onTapGesture {
    button.play(animationName: "active")
}

Drop Shadow on Asset

Animated assets must be treated like a full-size Rectangle. As such, if you have multiple elements and uneven shapes, clipping and adding a shadow modifier won’t work. Instead, we’ll create a custom shape underneath and blur it.

// button, apply before overlay
.background(
    Color.black
        .cornerRadius(30)
        .blur(radius: 10)
        .opacity(0.3)
        .offset(y: 10)
)

BACK TO

Background Animation in Rive

Download source files

Download the videos and assets to refer and learn offline without interuption.

Design template

Source code for all sections

Video files, ePub and subtitles

Subtitles

Assets

Videos

Build an Animated App with Rive and SwiftUI

Design and code an iOS app with Rive animated assets, icon animations, custom layouts and interactions

9:55

Background Animation in Rive

Create a simple animation in Rive from scratch using SVG shapes

8:23

Button Animation in Rive

Create a simple button animation with timing and clipping in Rive and SwiftUI

10:52

Custom Fonts

Create dynamic text styles using custom fonts in your iOS app

14:39

Custom Modal

Create a login modal with reusable custom text fields and a divider

12:54

Modal Transition

Code a button with specific rounded corners, hex color values and a dismiss modal animation

12:15

Loading and Success Animation

Add Rive loading and confetti animations with state machine to the modal view after button action

13:05

Tab Bar Animated Icons

Create a tab bar with multiple icon animations using loop and data model

9:15

Tab Bar Selection

Add a selected tab bar animation using Enum and AppStorage

7:14

Icon Animation in Rive

Design an animated hamburger menu with Rive State Machine that transitions to a close button

13:44

Layout and Card Components

Create a simple layout with card components and horizontal and vertical scrolls

18:03

Side Menu Animated Icons

Create a side menu with multiple Rive animated icons

10:47

Side Menu Selection

Animate the list item background during a tap gesture and add more lists and a toggle

10:32

Side Menu Animation

Animate the side menu from a hamburger menu using 3D transform

6:52

Main View Animation

Animate the onboarding view, status bar and tab bar gradient mask

15:22

Meet the instructor

We all try to be consistent with our way of teaching step-by-step, providing source files and prioritizing design in our courses.

Meng To

I design, code and write

Meng To is the author of Design+Code. Meng started off his career as a self-taught designer from Montreal and eventually traveled around the world for 2 years as his US VISA was denied. During his travels, he wrote a book which now has 35,000 readers.

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