I have watched SiriKit in wwdc and read document.
Add SiriKit support only if your app implements one of the following
types of services:
- Audio or video calling
- Messaging Payments
- Searching photos
- Ride booking
No, you can't. That's why it says "only if your app implements one of the following types of services".
You won't get the 'find
bar' syntax; each respective service has its own syntax - like "start a workout in MyApp" or "Book a ride to
place with MyApp". See https://developer.apple.com/sirikit/ for examples.
I would expect a workaround using the SiriKit API to result in your app being rejected if submitted to the general app store, and I would expect it to be extremely fragile if it passed App Review or didn't go through it in the first place.