Force RecyclerView to redraw its items

android android-recyclerview redraw
Denis Covaci picture Denis Covaci · Apr 8, 2016 · Viewed 37.6k times · Source

Is there any way to redraw all items of RecyclerView?

I have some Themes (in style.xml) and after changing the theme, I need the RecyclerView to be redrawn.

So I want a method that will force to re-call onCreateViewHolder for each items of the adapter.

I tried to:

  • call adapter.notifyDataSetChanged but onCreateViewHolder is not called
  • call recyclerView.setVisibility(View.GONE) and then recyclerView.setVisibility(View.VISIBLE)
  • call recyclerView.invalidate()
  • call recyclerView.setAdapter(null) and then recyclerView.setAdapter(adapter).
    This works well for 90% items. Only 90% of items will get the new style, but some items will have the old style

I mention that the RecyclerView is attached to an Activity, not to a Fragment.

Answer

Denis Covaci picture Denis Covaci · Apr 8, 2016

I found the answer! The correct way to do this is:

recyclerView.setAdapter(null);
recyclerView.setLayoutManager(null);
recyclerView.setAdapter(myAdapter);
recyclerView.setLayoutManager(myLayoutManager);
myAdapter.notifyDataSetChanged();

After that, all the items are getting the new style!

Related questions

How to add dividers and spaces between items in RecyclerView?

This is an example of how it could have been done previously in the ListView class, using the divider and dividerHeight parameters: <ListView android:id="@+id/activity_home_list_view" android:layout_width="match_parent" android:layout_height="match_…

Read More
RecyclerView onClick

Has anyone using RecyclerView found a way to set an onClickListener to items in the RecyclerView? I thought of setting a listener to each of the layouts for each item but that seems a little too much hassle I'm sure …

Read More
How to update RecyclerView Adapter Data?

Trying to figure out what is the issue with updating RecyclerView's Adapter. After I get a new List of products, I tried to: Update the ArrayList from the fragment where recyclerView is created, set new data to adapter, then call …

Read More