I'm using "Fetch as Google" to test deep linking into my Android app. I uploaded an APK and tried a url. You can see the url in the image. I'm 100% sure that the first redacted section of the url matches the android:host in the manifest. Is this something I'm doing wrong, or is this tool just really flaky?
<data
android:host="com.myapp.pro"
android:pathPrefix="/obj/"
android:scheme="android-app"
/>
App Indexing requires HTTP based URLs. Take a look at the examples with HTTP and HTTPS handlers in the documentation.