GridView.setOnItemClickListener is not working

I have been suffering with one problem since 2days.I have a grid view in that i need to display images.When I click on grid item it has to go to next activity.I am able to display images in gridview but the thing is when I click on that item it is not responding..(OnItemClickListener is not working).I couldn't able to trace my problem where I have done wrong.

         package com.logictreeit.mobilezop.fragments;

     import android.app.Activity;
     import android.content.Context;
     import android.os.Bundle;
     import android.support.v4.app.Fragment;
     import android.util.Log;
     import android.view.LayoutInflater;
     import android.view.View;
     import android.view.ViewGroup;
     import android.widget.AdapterView;
     import android.widget.AdapterView.OnItemClickListener;
     import android.widget.GridView;

     import com.logictreeit.mobilezop.adapters.PhotoAdapter;
     import com.logictreeit.mobilezop.custom.Utils;

      public class Dup_AlbumPhotosFragment extends Fragment implements
                OnItemClickListener {

private static final String TAG = "AlbumPhotos Fragment";
private GridView gridView;
private Context mContext;
private PhotoAdapter photoAdapter;

public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    Log.v(TAG, "on Activity Created ");

}

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
}

public void onAttach(Activity activity) {
    super.onAttach(activity);
    this.mContext = activity;
}

public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    Log.v(TAG, "OnCreateView");
    gridView = new GridView(mContext);
    gridView.setNumColumns(GridView.AUTO_FIT);
    gridView.setClickable(true);
    gridView.setOnItemClickListener(this);
    photoAdapter = new PhotoAdapter(mContext,                   -1,Utils.getALbumList().get(0).getPhotosList());
    gridView.setAdapter(photoAdapter);
    return gridView;
}

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
    Log.v(TAG, "on ItemClikced");

}

       }

This is my Fragment..

         package com.logictreeit.mobilezop.adapters;

        import java.util.List;

         import android.content.Context;
         import android.view.LayoutInflater;
         import android.view.View;
         import android.view.ViewGroup;
         import android.widget.ArrayAdapter;
         import android.widget.CheckBox;
         import android.widget.CompoundButton;
         import android.widget.CompoundButton.OnCheckedChangeListener;
         import android.widget.ImageView;

        import com.logictreeit.mobilezop.R;
        import com.logictreeit.mobilezop.models.Photo;

            public class DupPhotoAdapter extends ArrayAdapter<Photo> {
            private static final String TAG = "PhotoAdapter";
            private Context context;
private List<Photo> photoList;

public DupPhotoAdapter(Context context, int textViewResourceId,
        List<Photo> objects) {
    super(context, textViewResourceId, objects);
    this.context = context;
    this.photoList = objects;
}

public int getCount() {
    return photoList.size();
}

public View getView(int position, View convertView, ViewGroup parent) {
    convertView = LayoutInflater.from(context).inflate(
            R.layout.grid_item_image_layout, null);

    ImageView imageView = (ImageView) convertView
            .findViewById(R.id.grid_item_imageview);
    final CheckBox checkBox = (CheckBox) convertView
            .findViewById(R.id.grid_item_checkbox);
    final Photo photo = photoList.get(position);

    if (photo.isSelected()) {
        checkBox.setChecked(true);
    } else {
        checkBox.setChecked(false);
    }
    imageView.setImageResource(Integer.parseInt(photo.getFileUrl()));
    checkBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
        public void onCheckedChanged(CompoundButton buttonView,
                boolean isChecked) {
            if (isChecked) {
                photo.setSelected(true);
            } else {
                photo.setSelected(false);
            }

        }
    });
    return convertView;

}

     } 

This is my Adapter.

If you guys know.Can u please tell me...

Thanks, Chaitanya