![]() ![]() If you want to copy my Figma file, click here. If you create your designs directly in ProtoPie, you can skip this step. Step One: Arrange in Figma, and send to ProtoPie # If you haven’t used ProtoPie before, you can grab a free trial here. ( A ‘scene’ is basically a single screen or frame in ProtoPie, with a timeline of interactions and animations.) Using ProtoPie, this interaction is possible to prototype in a single scene that elegantly animates correctly while scrolling, without having to link out anywhere or affect any other parts of your prototype. I made it work by first tapping to switch to a ‘closed top bar,’ before scrolling, but it’s wholly unsatisfying. While Figma has scrolling frames, the only way to prototype this is hacky. ➡ The same text appears fixed to the centre of the new, shorter top barĪnd when scrolling back up to the top of a screen, the reverse applies.➡ The large title disappears from the top left (scrolls out of view).➡ The top bar shrinks to a fixed height.The interaction can be broken down like this: In this tutorial, we’ll just be creating the Title change that you see here. One interaction I find myself repeatedly needing to put in a prototype is the shrinking top navigation bar, found in most iPhone system apps, and many other iOS apps that make use of that default component. ProtoPie allows you to add complex transitions, animations, sounds, device features (like using your device camera in a prototype!) and more. That’s where tools like ProtoPie come in handy. ![]() I also stay in Figma when prototyping, as Figma prototypes are fast and easily shareable.īut occasionally, I require a more realistic prototype. Like many designers, I use Figma for designing app screens. ![]() Here’s the finished interaction we’ll be making. This tutorial explains how to prototype the default iOS top navigation bar so that it shrinks when scrolling. You are creating two halves because the split of the halves bisect the knob and as the knob rotates the halves also rotate to reveal the active part.Prototyping the iOS navigation bar in ProtoPie You can look at the sizes of the left and right images to get the correct measurements (128x256). To start, create two shape halves that split the circle vertically and place them on the left and right halves. In these steps, you will use masks to begin setting up the reveal of the active part of the slider as the knob moves along.ġ. Reveal the active part of the slider using Mask and Chain Part 1: Setting up the masks It takes trial and error to get the knob to rotate around the radial dial perfectly so we prefer our suggested method. In ProtoPie, values of the origin are percentage and limit easy accuracy in this case. For your information on the alternative way, you can change the Knob's origin to be in the center of the component and create a rotate function. □ Note: There is another way of making the Knob draggable in a circular slider, but it is less efficient so we suggest our method in this lesson. In the end, you’ll be able to make something like this! Make the text value correspond to the knob's rotation.Reveal the active part of the slider using mask and chain.Using a variable, ProtoPie will calculate the knob's rotation so you can use that information to change the displayed percentage value. With a chain, you are able to make changes to the property of one layer (the knob's rotation) to change the property of another layer (the active area of the slider). ProtoPie makes this effect easy to achieve by using chain and variable elements. In this case study, you'll be creating a circular slider that users control using a knob, which is linked to a corresponding percentage visualization. For best practice, it is suggested to use sliders when a precise value doesn't matter and instead allow users to select for an approximate range. Sliders allow users to control an element, such as a knob, in order to select a value in a range of options. ![]()
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