Android RecyclerView onClickListeners Easy OnLongClick and OnClick Example
Example
First of all, implement your view holder:
implements View.OnClickListener, View.OnLongClickListener
Then, register the listeners as follows:
itemView.setOnClickListener(this);
itemView.setOnLongClickListener(this);
Next, override the listeners as follows:
@Override
public void onClick(View v) {
onclicklistner.onItemClick(getAdapterPosition(), v);
}
@Override
public boolean onLongClick(View v) {
onclicklistner.onItemLongClick(getAdapterPosition(), v);
return true;
}
And finally, add the following code:
public void setOnItemClickListener(onClickListner onclicklistner) {
SampleAdapter.onclicklistner = onclicklistner;
}
public void setHeader(View v) {
this.headerView = v;
}
public interface onClickListner {
void onItemClick(int position, View v);
void onItemLongClick(int position, View v);
}
Adaptor demo
package adaptor;
import android.annotation.SuppressLint;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import com.wings.example.recycleview.MainActivity;
import com.wings.example.recycleview.R;
import java.util.ArrayList;
public class SampleAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
Context context;
private ArrayList<String> arrayList;
private static onClickListner onclicklistner;
private static final int VIEW_HEADER = 0;
private static final int VIEW_NORMAL = 1;
private View headerView;
public SampleAdapter(Context context) {
this.context = context;
arrayList = MainActivity.arrayList;
}
public class HeaderViewHolder extends RecyclerView.ViewHolder {
public HeaderViewHolder(View itemView) {
super(itemView);
}
}
public class ItemViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {
TextView txt_pos;
SampleAdapter sampleAdapter;
public ItemViewHolder(View itemView, SampleAdapter sampleAdapter) {
super(itemView);
itemView.setOnClickListener(this);
itemView.setOnLongClickListener(this);
txt_pos = (TextView) itemView.findViewById(R.id.txt_pos);
this.sampleAdapter = sampleAdapter;
itemView.setOnClickListener(this);
}
@Override
public void onClick(View v) {
onclicklistner.onItemClick(getAdapterPosition(), v);
}
@Override
public boolean onLongClick(View v) {
onclicklistner.onItemLongClick(getAdapterPosition(), v);
return true;
}
}
public void setOnItemClickListener(onClickListner onclicklistner) {
SampleAdapter.onclicklistner = onclicklistner;
}
public void setHeader(View v) {
this.headerView = v;
}
public interface onClickListner {
void onItemClick(int position, View v);
void onItemLongClick(int position, View v);
}
@Override
public int getItemCount() {
return arrayList.size()+1;
}
@Override
public int getItemViewType(int position) {
return position == 0 ? VIEW_HEADER : VIEW_NORMAL;
}
@SuppressLint("InflateParams")
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
if (viewType == VIEW_HEADER) {
return new HeaderViewHolder(headerView);
} else {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.custom_recycler_row_sample_item, viewGroup, false);
return new ItemViewHolder(view, this);
}
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int position) {
if (viewHolder.getItemViewType() == VIEW_HEADER) {
return;
} else {
ItemViewHolder itemViewHolder = (ItemViewHolder) viewHolder;
itemViewHolder.txt_pos.setText(arrayList.get(position-1));
}
}
}
The example code above can be called by the following code:
sampleAdapter.setOnItemClickListener(new SampleAdapter.onClickListner() {
@Override
public void onItemClick(int position, View v) {
position = position+1;//As we are adding header
Log.e(TAG + "ON ITEM CLICK", position + "");
Snackbar.make(v, "On item click "+position, Snackbar.LENGTH_LONG).show();
}
@Override
public void onItemLongClick(int position, View v) {
position = position+1;//As we are adding header
Log.e(TAG + "ON ITEM LONG CLICK", position + "");
Snackbar.make(v, "On item longclick "+position, Snackbar.LENGTH_LONG).show();
}
});
