Unreal Android Debugging not trigger c++ break point

I follow this turitual Android Debugging | Unreal Engine Documentation

but have some problems.

I successfully packaged the android studio project,but can’t see the cpp files in that project.(problem 1)

I have already config the run → Edit Configureations and the project can debug running good on the android mobile .

when I set a breakpoint on Java file , it’s sucessfully trigged.

Beacause I can’t find the project cpp files in android studio project, I just open the cpp file in my ue project on the android studio . Then I set the breakpoint on the cpp file .

when I debugging run the project on mobile , I can’t trigge that c++ file break point.

So the questions is :
Question 1:
How can I include the cpp files in my ue project on the android studio project ?
Question 2:
How can I trigge the breakpoints in cpp files on mobile ?

Please give me a help
Thank you !!

Sorry for pool English.
Question 1:When I Export the Android Stdio Project, I can’t see the c++ files in my solution.
Question 2:I just open the c++ files in folder, and set the breakpoints in android studio. When I debugging the project on mobile , it doesn’t trigger these breakpoints. How can I do it ?

Could anyone help?