1. // Creating Extensions in iOS Jesse Dietrichson | Jesse.Dietrichson@Xamarin.com

2.  Allows you to extend the functionality of your application to other applications or the system through an extension point. What is an Extension? Share  Available in iOS 8.0+

3.  An area in the system that supports extensions is called an extension point. Extension Points TodaySharePhoto Editing Custom Keyboard Action

4.  An area in the system that supports extensions is called an extension point. Extension Points TodaySharePhoto Editing Custom Keyboard Action A widget that appears on the Today view of the Notification Center.

5.  An area in the system that supports extensions is called an extension point. Extension Points TodaySharePhoto Editing Custom Keyboard Action Allows content to be shared through your application.

6.  An area in the system that supports extensions is called an extension point. Extension Points TodaySharePhoto Editing Custom Keyboard Action Allows photos and videos to be edited in the Photos app.

7.  An area in the system that supports extensions is called an extension point. Extension Points TodaySharePhoto Editing Custom Keyboard Action Replace the iOS system keyboard with a custom keyboard.

8.  An area in the system that supports extensions is called an extension point. Extension Points TodaySharePhoto Editing Custom Keyboard Action Manipulate or view content. Ex) translate a web page.

9.  Creating an extension will result in creating two projects. Creating an Extension Container ProjectExtension Project

10.  Creating an extension will result in creating two projects. Creating an Extension Container ProjectExtension Project References

11.  Creating an extension will result in creating two projects. Creating an Extension Container ProjectExtension Project References Automatic with new wizard in Xamarin 4

12.  Extensions are loaded, executed, and terminated. Extension Lifecycle

13.  Extensions are loaded, executed, and terminated. Extension Lifecycle Suspended State

14.  Extensions can communicate with the host application through the ExtensionContext property. Extension Communication

15.  Extensions can communicate with the host application through the ExtensionContext property. Extension Communication The application starting the extension.

16.  Extensions can communicate with the host application through the ExtensionContext property. Extension Communication Communication with container app

17.  Extensions can communicate with the host application through the ExtensionContext property. Extension Communication Communication with container app The application shipped with the extension.

18.  Heath Kit and EventKit UI are not available. Extension Limitations  Can’t use extended background modes.  Can’t access device’s camera or microphone.  Can’t receive Air Drop data.  UIActionSheet and UIAlertView are not available.

19.  Heath Kit and EventKit UI are not available. Extension Limitations  Can’t use extended background modes.  Can’t access device’s camera or microphone.  Can’t receive Air Drop data.  UIActionSheet and UIAlertView are not available.

20.  Heath Kit and EventKit UI are not available. Extension Limitations  Can’t use extended background modes.  Can’t access device’s camera or microphone.  Can’t receive Air Drop data.  UIActionSheet and UIAlertView are not available.

21.  Heath Kit and EventKit UI are not available. Extension Limitations  Can’t use extended background modes.  Can’t access device’s camera or microphone.  Can’t receive Air Drop data.  UIActionSheet and UIAlertView are not available.

22.  Heath Kit and EventKit UI are not available. Extension Limitations  Can’t use extended background modes.  Can’t access device’s camera or microphone.  Can’t receive Air Drop data.  UIActionSheet and UIAlertView are not available.

23. Demonstration

24. Thank You! Please complete the class survey in your profile: university.xamarin.com/profile // Questions?