This is the companion prototype to a 2-part tutorial where we explore the utilization of variables to help us to recreate Apple’s native iOS Weather app. In both tutorials, we go over the different ways Proto.io makes variables available to use in building your prototypes - from the simple example of setting a value in the variables manager and utilizing that value in the prototype to creating and setting a custom variable based on the property of a container and then to the more advanced usage of ternary operators to affect an outcome based on conditions surrounding that custom variable. http://docs.proto.io/videos/ios-weather-app-variables-tutorial-part-1/ http://docs.proto.io/videos/ios-weather-app-variables-tutorial-part-2/

Tumblr has a very nice series of animations that happens when you enter the compose mode. I thought it would be interesting to recreate this in Proto.io to show others how to achieve these kind of effect in their own protototypes. I have made a companion tutorial video where you can see exactly how I did it. This video is available here: http://docs.proto.io/videos/recreating-tumblr-compose-animations-in-proto-io/

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 is the redesign of GoodReads app for Android. Hope you guys love it, and I would love to know your views about it!