Effectively managing state, the bits of data that keep track of how the app is being used at the moment, is an important part of a developing your app. Because enumerations define a finite number of states, and can bundle associated values with each individual state, you can use them to model the state of your app and its internal processes.
Add App Center Push to your app 1. Add the App Center Push module. The App Center SDK is designed with a modular approach – you only need to integrate the services that you're interested in. Integration via Cocoapods. If you are integrating App Center into your app via Cocoapods, add the following dependency to your podfile and run pod install.