Retrive phone number from firebase to list picker to make a call

I saved phone number in screen in Firebase want to retrieve it in anther screen and put it in list picker to make a call but it didn't work
this is the code if two screens first screen is log in form
second screen is like chatting screen.


From the looks pf your blocks, you have not yet seen examples of how to structure data in Firebase (or any other tag/value database like CloudDB).

Here is some required reading for you, showing how to put tags under tags ...

I don't you understand? the first screen is like sign up page

the second screen is chat screen