在应用程序重启之前，Android RecyclerView不会加载Firebase项目

Question

I have a RecyclerView, which acts weird. I'm attaching it to data from a firebase database and there are no errors or crashses.

I need to close the application compeletely and reopen it only one time after installing it and log in with an account, and then it will start loading (the RecyclerView is inside a SwipeRefreshLayout).

Actions and events step-by-step:

1. I install the app.
2. Log in with existing account.
3. The RecyclerView gets the current data.
4. When swipeing down with SwipeRefreshLayout, the RecyclerView doesn't load any data.
5. After i close the application (pressing mainmenu on the phone and closing the app) and reopen it, the problem disappears and the SwipeRefreshLayout works perfectly.
6. When logging in with another account (for the first time), problem starts allover again.

I dont even know which code is doing that.

Answer 1

在数据库参考上应用onchildeventlistener