How to get the deep-link URI of current android activity from outside as a third party app? -

How to get the deep-link URI of current android activity from outside as a third party app? -

there detailed explanations of android deep-link tech at: https://developer.android.com/training/app-indexing/deep-linking.html

we can search/start/see activity content of app without logging in (first click free), important in connecting apps. created uri activity through android.intent.action.view, , tested through adb am.

question:

when going code app, want find way uri of current activity of app outside 3rd party app. example, user opened app a, activity of app on screen top. want develop app b this: if user click button or motion when activity of app on screen top, uri of current activity of app obtained , saved in app b. (if there no uri of it, toast notice.)

is there way realize this?

android android-intent uri deep-linking