Android RecyclerView IllegalArgumentException: called detach on an already detached child ViewHolder

[freecsdn]

[nawaf11]

I had this problem and the reason why this error happen because I was have something like this:

View sectionView = LayoutInflater.from(getContext()).inflate(R.layout.deck_section_header,null);
       mergeAdapter.addView(sectionView);
       mergeAdapter.addAdapter( (RecyclerView.Adapter) recAdapter_main);
       mergeAdapter.addView(sectionView); // this sectionView instance is duplicatied, this cause of error 
       mergeAdapter.addAdapter( (RecyclerView.Adapter) recAdapter_extra);

I solved the problem by edit code to be:

 View sectionView = LayoutInflater.from(getContext()).inflate(R.layout.deck_section_header,null);
 View sectionView2 = LayoutInflater.from(getContext()).inflate(R.layout.deck_section_header,null);
        mergeAdapter.addView(sectionView);
        mergeAdapter.addAdapter( (RecyclerView.Adapter) recAdapter_main);
        mergeAdapter.addView(sectionView2);
        mergeAdapter.addAdapter( (RecyclerView.Adapter) recAdapter_extra);