Android
RecyclerView onClickListeners

Nuevo ejemplo

public class SampleAdapter extends RecyclerView.Adapter<SampleAdapter.ViewHolder> {

    private String[] mDataSet;
    private OnRVItemClickListener mListener;

    /**
     * Provide a reference to the type of views that you are using (custom ViewHolder)
     */
    public static class ViewHolder extends RecyclerView.ViewHolder {
        private final TextView textView;

        public ViewHolder(View v) {
            super(v);
            // Define click listener for the ViewHolder's View.
            v.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) { // handle click events here
                    Log.d(TAG, "Element " + getPosition() + " clicked.");
                    mListener.onRVItemClicked(getPosition(),v); //set callback
                }
            });
            textView = (TextView) v.findViewById(R.id.textView);
        }

        public TextView getTextView() {
            return textView;
        }
    }

    /**
     * Initialize the dataset of the Adapter.
     *
     * @param dataSet String[] containing the data to populate views to be used by RecyclerView.
     */
    public SampleAdapter(String[] dataSet) {
        mDataSet = dataSet;
    }

    // Create new views (invoked by the layout manager)
    @Override
    public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
        // Create a new view.
        View v = LayoutInflater.from(viewGroup.getContext())
                .inflate(R.layout.text_row_item, viewGroup, false);

        return new ViewHolder(v);
    }

    // Replace the contents of a view (invoked by the layout manager)
    @Override
    public void onBindViewHolder(ViewHolder viewHolder, final int position) {
        // Get element from your dataset at this position and replace the contents of the view
        // with that element
        viewHolder.getTextView().setText(mDataSet[position]);
    }

    // Return the size of your dataset (invoked by the layout manager)
    @Override
    public int getItemCount() {
        return mDataSet.length;
    }

    public void setOnRVClickListener(OnRVItemClickListener) {
        mListener = OnRVItemClickListener;
    }

    public interface OnRVItemClickListener {
       void onRVItemClicked(int position, View v);
    }
}

Ejemplo de Kotlin y RxJava.

Primer ejemplo reimplementado en Kotlin y usando RxJava para una interacción más limpia.

import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.support.v7.widget.RecyclerView
import rx.subjects.PublishSubject

public class SampleAdapter(private val items: Array<String>) : RecyclerView.Adapter<SampleAdapter.ViewHolder>() {

    // change to different subjects from rx.subjects to get different behavior
    // BehaviorSubject for example allows to receive last event on subscribe
    // PublishSubject sends events only after subscribing on the other hand which is desirable for clicks
    public val itemClickStream: PublishSubject<View> = PublishSubject.create()
    
    override fun getItemCount(): Int {
        return items.size
    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder? {
        val v = LayoutInflater.from(parent.getContext()).inflate(R.layout.text_row_item, parent, false);
        return ViewHolder(view)
    }

    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
        holder.bind(items[position])
    }

    public inner class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
        private val textView: TextView by lazy { view.findViewById(R.id.textView) as TextView }

        init {
            view.setOnClickListener { v -> itemClickStream.onNext(v) }
        }

        fun bind(text: String) {
            textView.text = text
        }
    }
}

El uso es bastante simple entonces. Es posible suscribirse en un hilo separado utilizando las instalaciones de RxJava.

val adapter = SampleAdapter(arrayOf("Hello", "World"))
adapter.itemClickStream.subscribe { v ->
    if (v.id == R.id.textView) {
        // do something
    }
}

Ejemplo fácil de OnLongClick y OnClick

En primer lugar, implemente el titular de su vista:

implements View.OnClickListener, View.OnLongClickListener

Luego, registre a los oyentes de la siguiente manera:

itemView.setOnClickListener(this);
itemView.setOnLongClickListener(this);

A continuación, anule a los oyentes de la siguiente manera:

@Override
public void onClick(View v) {
    onclicklistner.onItemClick(getAdapterPosition(), v);
}

@Override
public boolean onLongClick(View v) {
    onclicklistner.onItemLongClick(getAdapterPosition(), v);
    return true;
}

Y finalmente, agregue el siguiente código:

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);
}

Demostración del adaptador

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));
        }
    }
}

El código de ejemplo anterior se puede llamar mediante el siguiente código:

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();
    }
});

Artículo Click Listeners

Para implementar un elemento, haga clic en escucha y / o en un elemento haga clic en escucha, puede crear una interfaz en su adaptador:

public class CustomAdapter extends RecyclerView.Adapter<CustomAdapter.ViewHolder> {

    public interface OnItemClickListener {

        void onItemSeleted(int position, View view, CustomObject object);
    }

    public interface OnItemLongClickListener {

        boolean onItemSelected(int position, View view, CustomObject object);
    }

    public final class ViewHolder extends RecyclerView.ViewHolder {

        public ViewHolder(View itemView) {
            super(itemView);
            final int position = getAdapterPosition();

            itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    if(mOnItemClickListener != null) {
                        mOnItemClickListener.onItemSeleted(position, view, mDataSet.get(position));
                    }
                }
            });
            
            itemView.setOnLongClickListener(new View.OnLongClickListener() {
                @Override
                public boolean onLongClick(View view) {
                    if(mOnItemLongClickListener != null) {
                        return mOnItemLongClickListener.onItemSelected(position, view, mDataSet.get(position));
                    }
                }
            });
            
        }
    }

    private List<CustomObject> mDataSet;

    private OnItemClickListener mOnItemClickListener;
    private OnItemLongClickListener mOnItemLongClickListener;

    public CustomAdapter(List<CustomObject> dataSet) {
        mDataSet = dataSet;
    }

    @Override
    public CustomAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.view_item_custom, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(CustomAdapter.ViewHolder holder, int position) {
        // Bind views
    }

    @Override
    public int getItemCount() {
        return mDataSet.size();
    }

    public void setOnItemClickListener(OnItemClickListener listener) {
        mOnItemClickListener = listener;
    }

    public void setOnItemLongClickListener(OnItemLongClickListener listener) {
        mOnItemLongClickListener = listener;
    }

}

Luego puede configurar sus escuchas de clics después de crear una instancia del adaptador:

customAdapter.setOnItemClickListener(new CustomAdapter.OnItemClickListener {
    @Override
    public void onItemSelected(int position, View view, CustomObject object) {
        // Your implementation here
    }
});

customAdapter.setOnItemLongClickListener(new CustomAdapter.OnItemLongClickListener {
    @Override
    public boolean onItemSelected(int position, View view, CustomObject object) {
        // Your implementation here
        return true;
    }
});

Otra forma de implementar Item Click Listener

Otra forma de implementar el elemento de escucha de clics es utilizar la interfaz con varios métodos, cuyo número es igual al número de vistas en las que se puede hacer clic, y usar los escuchas de clics anulados, como puede ver a continuación. Este método es más flexible, ya que puede configurar escuchas de clic para diferentes vistas y controlar la lógica de clic por separado para cada una.

public class CustomAdapter extends RecyclerView.Adapter<CustomAdapter.CustomHolder> {

    private ArrayList<Object> mObjects;
    private ClickInterface mClickInterface;

    public interface ClickInterface {
        void clickEventOne(Object obj);
        void clickEventTwo(Object obj1, Object obj2);
    }

    public void setClickInterface(ClickInterface clickInterface) {
        mClickInterface = clickInterface;
    }

    public CustomAdapter(){
        mList = new ArrayList<>();
    }

    public void addItems(ArrayList<Object> objects) {
        mObjects.clear();
        mObjects.addAll(objects);
        notifyDataSetChanged();
    }

    @Override
    public CustomHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(parent.getContext())
                                .inflate(R.layout.list_item, parent, false);
        return new CustomHolder(v);
    }

    @Override
    public void onBindViewHolder(CustomHolder holder, int position) {
        //make all even positions not clickable
        holder.firstClickListener.setClickable(position%2==0);
        holder.firstClickListener.setPosition(position);
        holder.secondClickListener.setPosition(position);
    }


    private class FirstClickListener implements View.OnClickListener {
        private int mPosition;
        private boolean mClickable;

        void setPosition(int position) {
            mPosition = position;
        }

        void setClickable(boolean clickable) {
            mPosition = position;
        }

        @Override
        public void onClick(View v) {
            if(mClickable) {
                mClickInterface.clickEventOne(mObjects.get(mPosition));
            }
        }
    }

    private class SecondClickListener implements View.OnClickListener {
        private int mPosition;

        void setPosition(int position) {
            mPosition = position;
        }

        @Override
        public void onClick(View v) {
            mClickInterface.clickEventTwo(mObjects.get(mPosition), v);
        }
    }

    @Override
    public int getItemCount() {
        return mObjects.size();
    }

    protected class CustomHolder extends RecyclerView.ViewHolder {
        FirstClickListener firstClickListener;
        SecondClickListener secondClickListener;
        View v1, v2;

        public DialogHolder(View itemView) {
            super(itemView);
            v1 = itemView.findViewById(R.id.v1);
            v2 = itemView.findViewById(R.id.v2);
            firstClickListener = new FirstClickListener();
            secondClickListener = new SecondClickListener();

            v1.setOnClickListener(firstClickListener);
            v2.setOnClickListener(secondClickListener);
        }
    }
}

Y cuando tiene una instancia de adaptador, puede configurar su agente de escucha de clics que escucha hacer clic en cada una de las vistas:

customAdapter.setClickInterface(new CustomAdapter.ClickInterface {
    @Override
    public void clickEventOne(Object obj) {
        // Your implementation here
    }
    @Override
    public void clickEventTwo(Object obj1, Object obj2) {
        // Your implementation here
    }
});

RecyclerView Click listener

public  class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {

    private GestureDetector gestureDetector;
    private RecyclerTouchListener.ClickListener clickListener;

    public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final RecyclerTouchListener.ClickListener clickListener) {
        this.clickListener = clickListener;

        gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
            @Override
            public boolean onSingleTapUp(MotionEvent e) {
                return true;
            }
            @Override
            public void onLongPress(MotionEvent e) {
                View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
                if (child != null && clickListener != null) {
                    clickListener.onLongClick(child, recyclerView.getChildPosition(child));
                }
            }
        });
    }


    @Override
    public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
        View child = rv.findChildViewUnder(e.getX(), e.getY());
        if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) {
            clickListener.onClick(child, rv.getChildPosition(child));
        }
        return false;
    }

    @Override
    public void onTouchEvent(RecyclerView rv, MotionEvent e) {

    }

    @Override
    public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

    }

    public interface ClickListener {
        void onLongClick(View child, int childPosition);

        void onClick(View child, int childPosition);
    }
}

En mainActivity

RecyclerView recyclerView =(RecyclerView) findViewById(R.id.recyclerview);
 recyclerView.addOnItemTouchListener(new RecyclerTouchListener(getActivity(),recyclerView, new RecyclerTouchListener.ClickListener() {
      @Override
      public void onLongClick(View child, int childPosition) {

      }

      @Override
      public void onClick(View child, int childPosition) {

       
     }
    }));