Not able to access custom control in application


Please find attached screenshot where I am not able to access the drop-down section. Not sure whether is it another activity or custom control can somebody tell me how to find out. When I am looking for id using uiAutomator tool not able to find out age control which is there in screenshot.

**1- when we click on age one small ui appears having drop down structure where i can select 1,2,3,…but not able to inspect. Not sure what is this exactly?

Could you send your code and screenshot from inspector?