@Override public void onItemClick(AdapterView<?> l, View v, int position, long id) { if (l.getId() == R.id.photosGridView) { String clickedItem = photosGridViewContents[position]; Intent intent = new Intent(PhotoGridActivity.this, PhotoViewerActivity.class); intent.putExtra( "filename", clickedItem); // use putExtra method of Intent here for passing additional information to // PhotoViewerActivity startActivity(intent); } }