Getting RecyclerView Height From OnBindViewHolder

Question

In the OnBindViewHolder method of my Adapter, I need to get the height of the associated RecyclerView. Is there a way to get a reference to the associated RecyclerView? Thanks.

Answer 1

Hello,​

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Is there a way to get a reference to the associated RecyclerView?

Try to create a 'RecyclerView' property in the custom Adapter class and pass the recyclerView instance in Activity class.

Check the code:

   public class MainActivity : AppCompatActivity  
   {  
       RecyclerView mRecyclerView;  
       RecyclerView.LayoutManager mLayoutManager;  
       List<model> list;  
       CustomAdapter myadapter;  
       protected override void OnCreate(Bundle savedInstanceState)  
       {  
           base.OnCreate(savedInstanceState);  
           // Set our view from the "main" layout resource  
           SetContentView(Resource.Layout.main_layout);  
     
           mRecyclerView = FindViewById<RecyclerView>(Resource.Id.recycleview);  
           mLayoutManager = new LinearLayoutManager(this);  
           mRecyclerView.SetLayoutManager(mLayoutManager);  
     
           list = new List<model>();  
           //add the data  
     
           myadapter = new CustomAdapter(list, mRecyclerView);  
           mRecyclerView.SetAdapter(myadapter);  
       }  
   }  
     
   public class CustomAdapter : RecyclerView.Adapter  
   {  
       private List<model> list;  
       RecyclerView recyclerView;  
       public CustomAdapter(List<model> list, RecyclerView recyclerView)  
       {  
           this.list = list;  
           this.recyclerView = recyclerView;  
       }  
       ...  
       public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent, int viewType)  
       {  
           View itemView = LayoutInflater.From(parent.Context).Inflate(Resource.Layout.itemLayout, parent, false);  
           CustomViewHolder viewHolder = new CustomViewHolder(itemView);  
     
           //you could access the recyclerView here  
     
           return viewHolder;  
       }  
   }  

Best Regards,

Jarvan Zhang

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