Interaction Design patterns are solutions to commonly faced design problems. Proto.io offers you a number of these patterns, as complex UI components that you can add to your project and customize, saving you a lot of time.
This video explains how to use the "iOS Home screen simulation" pattern. When you tap on an app icon in the Home screen, it animates and brings up the app's UI. This pattern adds a new screen to your project (optionally a start screen). The screen added includes a container with 2 states. When you tap on the icon in the first container state, it changes state with a transition. You can customize interactions and transitions according to your needs.