How to add Onclick listener to recycler view

user_8041516 0
Viewed 36453

I am developing a simple notepad app first i used listView to show all the notes.But now I am using RecyclerView. While i am using listview i used OnItemClickListener to pass the Data to another activity for editing the note now i am confuse what to do in Recylerview

For listView i am using this

 listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            name = filenames.get(position).getName();
            note = filenames.get(position).getShorttext();
            Alert(); // this method is in main activity 

        }
    });*/  


  public void Alert()
   {
    final AlertDialog dialog;
    View mview = getLayoutInflater().inflate(R.layout.dialog_pass,null);
    final EditText mEdittext = (EditText) mview.findViewById(R.id.Epass);
    AlertDialog.Builder mBuilder = new AlertDialog.Builder(MainActivity.this);
    mBuilder.setView(mview);
    mBuilder.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            String col = mEdittext.getText().toString();
            String password = dBhelper.searchpass(col);
            if (col.equals(password)) {
                Intent intent =  new Intent(MainActivity.this,Note2.class);
                intent.putExtra("Name",name);
                intent.putExtra("Note",note);
                startActivity(intent);
            } else {
                Toast temp = Toast.makeText(MainActivity.this, "Password does not match", Toast.LENGTH_SHORT);
                temp.show();
            }

        }
    });
    mBuilder.setNegativeButton("Cancel",null);
    mBuilder.setCancelable(false);
    dialog = mBuilder.create();
    dialog.show();

     }

Now What Should i Do for Recycle View Please Help

  public class RecycleViewAdapter extends 
  RecyclerView.Adapter<RecycleViewHolder> {// Recyclerview will extend to
  private List<FileName> fileNames;
  private Context context;

  public RecycleViewAdapter(Context context,List<FileName> fileNames) {
    this.context = context;
    this.fileNames = fileNames;

}

@Override
public RecycleViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    LayoutInflater mInflater = LayoutInflater.from(parent.getContext());

    ViewGroup mainGroup = (ViewGroup) mInflater.inflate(
            R.layout.grid_item, parent, false);
    RecycleViewHolder listHolder = new RecycleViewHolder(mainGroup);
    return listHolder;

}

@Override
public void onBindViewHolder(RecycleViewHolder holder, final int position) {
    final FileName model = fileNames.get(position);
    RecycleViewHolder mainHolder = (RecycleViewHolder) holder;// holder
    mainHolder.title.setText(model.getName());
    mainHolder.note.setText(model.getShorttext());

}

@Override
public int getItemCount() {
    return (null != fileNames ? fileNames.size() : 0);
  }
android-recyclerview android
8 Answers

Simplest solution would be to access the "itemView" public variable of holder class and set onClickListener on this. 

@Override
public void onBindViewHolder(ViewHolder holder, final int position) {
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(context, NewActivity.class);
                intent.putExtra("FileName", list.get(position));
                context.startActivity(intent);
            }
        });        
}
user_57455740

First add this class to your package

public class MyTouchListener implements RecyclerView.OnItemTouchListener {


/*Change these as per your need*/
private static final int SWIPE_MIN_DISTANCE = 120;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;
private static final int SWIPE_MAX_OFF_PATH = 250;

private OnTouchActionListener mOnTouchActionListener;
private GestureDetectorCompat mGestureDetector;

public static interface OnTouchActionListener {
    public void onLeftSwipe(View view, int position);
    public void onRightSwipe(View view, int position);
    public void onClick(View view, int position);
}

public MyTouchListener(Context context, final RecyclerView recyclerView,
                             OnTouchActionListener onTouchActionListener){

    mOnTouchActionListener = onTouchActionListener;
    mGestureDetector = new GestureDetectorCompat(context,new GestureDetector.SimpleOnGestureListener(){

        @Override
        public boolean onSingleTapConfirmed(MotionEvent e) {
            // Find the item view that was swiped based on the coordinates
            View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
            int childPosition = recyclerView.getChildPosition(child);
            mOnTouchActionListener.onClick(child, childPosition);
            return false;
        }

        @Override
        public boolean onFling(MotionEvent e1, MotionEvent e2,
                               float velocityX, float velocityY) {

            try {
                if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH) {
                    return false;
                }

                // Find the item view that was swiped based on the coordinates
                View child = recyclerView.findChildViewUnder(e1.getX(), e1.getY());
                int childPosition = recyclerView.getChildPosition(child);

                // right to left swipe
                if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {

                    if (mOnTouchActionListener != null && child != null) {
                        mOnTouchActionListener.onLeftSwipe(child, childPosition);
                    }

                } else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
                    if (mOnTouchActionListener != null && child != null) {
                        mOnTouchActionListener.onRightSwipe(child, childPosition);
                    }
                }
            } catch (Exception e) {
                // nothing
            }

            return false;
        }
    });
}

@Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
    mGestureDetector.onTouchEvent(e);
    return false;
}

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

@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
    // do nothing
}}

Then addOnItemTouchListener like this:

myRecyclerView.addOnItemTouchListener(new MyTouchListener(mContext,
            myRecyclerView,
            new MyTouchListener.OnTouchActionListener() {
                @Override
                public void onLeftSwipe(View view, int position) {//code as per your need
                }

                @Override
                public void onRightSwipe(View view, int position) {//code as per your need
                }

                @Override
                public void onClick(View view, int position) {//code as per your need
                }
            }));
user_76822570

Try this code into your holder class.... It will work and easy to use:

public class RecyclerViewHolder extends RecyclerView.ViewHolder {

        public ItemHolder(@NonNull final View recyclerView) {
            super(recyclerView)

            recyclerView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    int position = getAdapterPosition();

                }
            });
        }
    }
user_121061600

Recyclerview with click listener

On your adapter class create an interface.

public interface SelectedUser{

    void selectedUser(UserModel userModel);

}

In your adapter view holder class listen to click event.

        itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                selectedUser.selectedUser(userModelList.get(getAdapterPosition()));
            }
        });

finally implement your interface in your activity and override the method.

   @Override
    public void selectedUser(UserModel userModel) {

        startActivity(new Intent(MainActivity.this, SelectedUserActivity.class).putExtra("data",userModel));



    }

Full tutorial and source code use the link below. Recyclerview with click listener

user_96537030
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