Android P saw the introduction of App Slices, which allow developers to open intents within specific parts of other apps. While we haven’t seen any examples of them in that version earlier, Q started to put steam behind the feature by adding common system settings as Slices, such as WiFi and Bluetooth settings. Now, Contacts becomes the first Google app to offer this feature.
The Google Contacts App Slice appears when you add a new number through a messenger such as WhatsApp.
Google Contacts rolls out an App Slice that slides into view when you add a new person was written by the awesome team at Android Police.