Page Scroll Position
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Prototype an onboarding experience with 3 screens and use the scroll position to set the page indicator
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Advanced Prototyping in ProtoPie
1
Advanced Prototyping with ProtoPie
11:48
2
Quick Prototyping
11:46
3
Start Animation and Sequence
12:36
4
Drag and Release
9:38
5
Toggle with Conditions
11:48
6
Screen Transition
12:53
7
Pull to Dismiss
6:59
8
Page Scroll Position
11:57
9
Input and Submit
13:41
10
Chain and Drag 3D
7:45
11
Formula and Detect
16:37
12
Range and Card Animation
15:32
13
Variable and Detect Mouse
12:02
14
Sensors and Receive
12:47
Getting Started
To get started, open ProtoPie and create a new Pie. Import the following files from Sketch: Login, Sign Up and Learn More, all @3x.
Shared Elements
We'll start off by selecting the first scene. This scene also contains some elements that will be shared across the scenes. To automatically create a full screen, select every element and create a group, rename the group to Login. Next, we'll remove the shared items (Status Bar and Dots) from all the scenes.
Login
Select the Login scene, click on Container and choose the Paging Container option. Set both the width and the height to 100% for Container 1 and drag Login inside this container. Container 1 will act as the paging container for all three of our pages.
Sign up
Go to the second scene and follow the same steps for Sign Up as well. Select the elements and group them together. Rename the container to Sign Up and paste it inside Container 1, which is in the first scene. In position, set X axis equal to 375.
Learn more
Lastly, let's do the same for the third scene. Go to the third scene, create a container, rename it to Learn More and then paste it inside Container 1. Set the X position to 750. Now, we have three screens inside Container 1. This'll enable us to swipe back and forth between these screens. Rename Container 1 to Page Scroll.
Detect
Detect allows us to see changes in any property in any layer. In order for the user to see which page they're on, we need to add a Page Indicator. To do that, select Page Scroll, click Add Trigger button and choose Detect under Conditional.
Condition
In this step, we'll add a Condition and set the property to Scroll instead of X. For the first Condition, set the scroll value to 0. Scroll value signifies the offset. Now, we'll select the Dots container and set the opacity. Set the opacity for the first dot to 100% and then for the second and the third, set it to 30%.
Dynamic import
The problem is that they are already, by default, with opacity. To resolve this we'll update our layers. Go back to Sketch and make sure that the opacity for all 3 dots is set to 100%. Import Login from Sketch again. One of the best things about ProtoPie is that it detects all the layers that we've on it to the layers we've on Sketch and automatically updates the ones that have been changed without affecting the structure. You'll notice that it detected that only three layers were changed.
Condition
Now, select the second and the third dots and set the default opacity to 30%. We'll be adding the other two conditions now. Firstly, copy and paste the first condition twice. Set the Scroll Value for the second condition to 375 and for the third one, set it to 750. The next step is to set opacity.
Select the second condition and set the opacity for the first dot to 30% and the middle dot to 100%.
For the third condition, which is the third page, set the opacity of the first dot to 30% and the third dot to 100%.
Background Color
To ensure that the background color changes as we scroll, create a Rectangle that is equal to the size of our background and place it underneath everything. Rename the rectangle to Background and set the color to be the same as that of the page. Please make sure to remove the background for each of the screens i.e. the layer named Card. Now, select Background and add Color to our Conditions. For the first condition, set the color to be #5044DE, for the second one, set it to #E95B65 and for the third one, set it to #017AFF.
Color Animation
In this step, we'll work towards making the color animation smoother. To do so, select Color from all three conditions simultaneously and set the Duration to 0.5.
Realtime Detection
Start off by creating a new layer Text. Put it at the top, center it and set its size to 50 X 22. Set the text to "0" by default.
Set the color to #FFFFFF, center it and then set the font-size to 12px.
Lastly, add fill to #000000, 30% and the radius to 5.
Now, to change the text value, click on Detect and choose the Text option. Select Text 1 as our layer. For content, instead of Text, we'll choose Formula. Click 'fx' and press tilde to get search options, select Page Scroll and then scrollOffset.
`Page Scroll`.scrollOffsetTemplates and source code
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1
Advanced Prototyping with ProtoPie
Create high-fidelity prototypes with variables, formula, conditions and sensors
11:48
2
Quick Prototyping
Learn the basics of ProtoPie and create a prototype for your entire app in minutes
11:46
3
Start Animation and Sequence
Learn how to use the Start trigger, animation responses and timing
12:36
4
Drag and Release
Use Drag, Touch Up and Touch Down to create gestures with cards
9:38
5
Toggle with Conditions
Create multiple animation states and toggle back and forth between them
11:48
6
Screen Transition
Create a custom transition between screens and that jumps to another scene
12:53
7
Pull to Dismiss
Create a dismiss interaction that transitions back to a previous screen
6:59
8
Page Scroll Position
Prototype an onboarding experience with 3 screens and use the scroll position to set the page indicator
11:57
9
Input and Submit
Prototype a Login experience with a form, error messages and a success modal
13:41
10
Chain and Drag 3D
Use the drag position to move and animate with perspective
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11
Formula and Detect
Use object properties, functions and type conversions to power your prototype
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12
Range and Card Animation
Detect a range of values to trigger a response and create screen transitions
15:32
13
Variable and Detect Mouse
Store dynamic values from your mouse and create a parallax effect
12:02
14
Sensors and Receive
Use Tilt to detect the angle on your device and Send & Receive values
12:47
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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