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I am making an app that uses firebase, in which you register using email and password, the app then gives you a 4 digit randomly generated PIN, you can then use that PIN to find a user with the corresponding PIN and start a chat with them. However my code doesn't seem to be working right now. I used sample data and it worked fine but if I try to enter the PIN of another user (I created 2 accounts so 2 PINs) the chat doesn't display, rather I get a blank screen where the chat should be displayed in a recyclerView.

Here is my code.




 
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Is the random code generated(just add some logs) is the Recycler view generated? Pplease furnish some `Log.d` So that we can debug together
 
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