Other than @SanatiSharif’s and @sohrab’s answer, you have to follow below mandatory step. Make sure you call setLayoutManager, something like below. recyclerView.setLayoutManager(new LinearLayoutManager(getContext())); before setting adapter into recyclerView, otherwise it is not going to work. You can customize it if you need. this link will give you some idea of how LayoutManager works.
I would bet that you are trying to create a CursorAdapter in the Constructor of your Activity. Context is not available in the Activities Constructor, it is only available in the Activity.onCreate() method and beyond. And for a top tip… Create the CursorAdapter with a Cursor of null in Activity.onCreate() and use ListView.getAdapter().changeCursor(newCursor) to assign … Read more
OK I got this to work, mostly. I had to use a custom defined class that extends ListPreference. Then inside of that I had to create a custom adapter class just like you would for a ListView and set it to the builder using builder.setAdapter(). I also had to define listeners for both the RadioButtons … Read more
Edit: I understand why this happens that wasn’t my point. My point is that it at least needs to give a warning or call the notifyDataSetChanged() function. Because apparently I am calling the submitList(…) function for a reason. I am pretty sure people are trying to figure out what went wrong for hours until they … Read more