Android: set fixed item in RecyclerView

Question

I have a RecyclerView, when I click in the first view, it adds another view, similar to the image, what I want is to set the “add” view, for which the identifier “1” should be fixed in the last position of the processor instead in the first one.

My adapter:

public class AddEventsAdapter extends RecyclerView.Adapter<AddEventsAdapter.ViewHolder> { private List<String> items = new ArrayList<>(); public void addItem(String name) { items.add(name); notifyItemInserted(items.size() - 1); } public void removeItem(int position) { items.remove(position); notifyItemRemoved(position); notifyItemRangeChanged(position, items.size()); } @Override public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { LayoutInflater inflater = LayoutInflater.from(parent.getContext()); View view = inflater.inflate(R.layout.add_event_item, parent, false); return new ViewHolder(view); } @Override public int getItemCount() { return items.size(); } @Override public void onBindViewHolder(ViewHolder holder, int position) { holder.setEventNameName(i + ""); if(position == 0) { holder.theLayout.setBackgroundColor(Color.parseColor("#7F9099")); holder.eventName.setText("Add"); } } static int i; class ViewHolder extends RecyclerView.ViewHolder{ public TextView eventName; public RelativeLayout theLayout; public ViewHolder(final View itemView) { super(itemView); eventName = (TextView)itemView.findViewById(R.id.eventName); theLayout = (RelativeLayout)itemView.findViewById(R.id.backgroundevent); theLayout.setId(++i); theLayout.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (getAdapterPosition()>0){ removeItem(getAdapterPosition()); }else { addItem(""); } } }); } public void setEventNameName(String TheEventName){ eventName.setText(TheEventName); } } } 

In action:

 final AddEventsAdapter AddContainer = new AddEventsAdapter(); AddEventsRecycler.setLayoutManager(new LinearLayoutManager(this)); AddEventsRecycler.setAdapter(AddContainer); AddEventsRecycler.setItemViewCacheSize(666); RecyclerView.ItemAnimator itemAnimator = new DefaultItemAnimator(); itemAnimator.setAddDuration(1000); itemAnimator.setRemoveDuration(1000); AddEventsRecycler.setItemAnimator(itemAnimator); AddContainer.addItem(""); 

Answer 1

I solved this by creating a custom adapter that allows a footer and a header, here is the project on GitHub: https://github.com/u3breeze/android-RecyclerView-WithHeaderAndFooter

Answer 2

You tried something like:

  public void addItem(String name) { if (items.size() != 0) { removeItem(items.size() - 1); items.add(name); items.add("Add"); } else items.add("Add"); notifyItemInserted(items.size() - 1); } 

then the item id is Add items.size() -1

edit Change if in your Holder class with the following code:

  if(position == items.size() - 1) { holder.theLayout.setBackgroundColor(Color.parseColor("#7F9099")); holder.eventName.setText("Add"); }