45.2 An Introduction to the Intent Definition File
When a SiriKit extension such as a Messaging Extension is added to an iOS project, it makes use of a pre-defined system intent provided by SiriKit (in the case of a Messaging extension, for example, this might involve the INSendMessageIntent). In the case of Siri shortcuts, however, a custom intent is created and configured to fit with the requirements of the app. The key to creating a custom intent lies within the Intent Definition file.
An Intent Definition file can be added to an Xcode project by selecting the Xcode File -> New -> File… menu option and choosing the SiriKit Intent Definition File option from the Resource section of the template selection dialog.
Once created, Xcode provides an editor specifically for adding and configuring custom intents (in fact the editor may also be used to create customized variations of the system intents such as the Messaging, Workout and Payment intents). New intents are...
