In this chapter, we talked about iOS app extensions and which one you should use to meet your requirements. Extensions give a new flavor to the iOS to make the user reach your app functionality while using other apps. We talked about the Today widget and how it's useful to display timely information when the user opens the Today view in the notification center. We then saw how apps can share content via the Share extension of your app. If your app has a functionality to open and manage specific documents, you can use the Document Provider extension and let other apps use your extension to open, browse, or export contents. We also saw the awesome custom keyboard extension that lets you design the new keyboard to be system-wide and replace the system keyboard. Finally, we implemented a demo in one of these extensions: the Today extension. We displayed the current weather of the beautiful city of Venice in the Today screen.

I hope that this book has provided you with the information...