For this week, I finally manage to get Firebase Database working and still trying to get the hang of flutter! Implemented asynchronous to allow the app to get the data first before loading the app.

 

At the same time, I had to clean up my code and split into different classes in order to organize the code. Chucking all in one seems really messy! Now I'm having 15 classes in total!

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I am also facing databaseReference issues in flutter as shown below. I fixed it by re-adding the json file but this often occurs randomly without reasons