I am implementing Google App Indexing in my app. I have followed the tutorials and my app support this kind of deep links:
http://mywebsite.tk
And I have the required code so that it supports also:
android-app://com.my.package/http/mywebsite.tk/
I can open with my app any link with both structures, opening urls from an email, and even pasting the deeplink in Chrome directly. I have also passed the tests for Google App Indexing in Android Studio.
But what I want is the following button:
I have a custom parameter inside the url so that I can show different info. How can I make Google show that button? I don't have a website, only a domain to handle the deep link, but a website is not required.