College Project on using Proto.io as a "New Technology" .... showing how a group of non-programmers can now prototype any app.

Basic shapes like rectangles, lines, circles, text and more are available and they can be dropped on the canvas to create the very first draft of a mobile app in order to demonstrate the flow and functionality of the app.

Designers can use their favorite design tools like Photoshop and Sketch to design the finest details of the user interface for their app. Single or multiple touch interactions can be applied on any UI element (layer) on each screen. Sophisticated animations can be created on-screen as well as screen transitions, using the powerful timeline animation features that Proto.io offers.

If you need to get the Y position of a vertically scrolling container, create a text box. Then on the container scroll trigger, set a variable that evaluates the numerical callback value from the event (Y position). Then add a callback that changes the text property of the text box by reading from the variable.

This prototype show how to re-create the intro animation of the Twitter iOS app where the bird flings out and the feed flings in. See how it was re-created step-by-step in this webinar video: http://docs.proto.io/videos/re-creating-bespoke-interactive-animations-with-proto-io-2/ Assets also available to use.