How to use androidx.recyclerview.widget.RecyclerView with tools:listitem?

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How to use androidx.recyclerview.widget.RecyclerView with tools:listitem? I have this layout:

      
      
        
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                   北荒
                                             
                
                
                (楼主)
            
              
              
                2021-02-15 19:11
              

            
            
                        
From your code it seems that your recyclerview is the root element of the XML, and is missing the reference from xmlns:tools

Try to use another root element, as a constraint layout or even just layout as per example of google sunflowerapp:



    



    
             
                                                        
            
            
              
                
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