Reputation: 418
Update: I revised my original question because it was too vague.
I just implemented a RecyclerView and now I want to make each item clickable, so that when I click on an item it will will take me to DetailsActivity (for phone and tablet) where I can find out more information about the item.
I was able to do this prior to implementing a recyclerview because all I had is a gridview where I call mGridView.setOnItemClickListener.
Here is the code prior to recyclerview:
public class BookFragment extends Fragment implements LoaderManager.LoaderCallbacks<Cursor> {
....
.....
public interface CallbackInterface {
/**
* DetailFragmentCallback for when an item has been selected.
*/
public void onItemSelected(Uri bookUri);
}
....
.....
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View rootView = inflater.inflate(R.layout.fragment_main, container, false);
// initialize our BookAdapter
mBookAdapter = new BookAdapter(getActivity(), null, 0, CURSOR_LOADER_ID);
// initialize mGridView to the GridView in fragment_main.xml
mGridView = (GridView) rootView.findViewById(R.id.Book_grid);
// set mGridView adapter to our CursorAdapter
mGridView.setAdapter(mBookAdapter);
// make each item clickable
mGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
int uriId = position + 1;
Uri uri = ContentUris.withAppendedId(BookContentProvider.Book.CONTENT_URI,
uriId);
Cursor cursor = (Cursor) parent.getItemAtPosition(position);
if (cursor != null) {
((CallbackInterface) getActivity())
.onItemSelected(BookContentProvider.Book.withId(cursor.getLong(0))); // getlong(0) gets the row ID
}
}
});
return rootView;
}
.....
}
Now that I have recyclerview it looks like I cannot longer call mGridView.setOnItemClickListener, as Recyclerview does not have this method. It looks like I can call setOnClickListener but I'm not sure how I can implement that in my BookCursorAdapter:
Here is my code BookCursorAdapter:
public class BookCursorAdapter extends CursorRecyclerViewAdapter<BookCursorAdapter.ViewHolder> {
private static final String LOG_TAG = BookCursorAdapter.class.getSimpleName();
private static Context mContext;
private ViewHolder mVh;
public BookCursorAdapter(Context context, Cursor cursor) {
super(context, cursor);
mContext = context;
}
public static class ViewHolder extends RecyclerView.ViewHolder {
public final View mView;
public final ImageView imageView;
public ViewHolder(View view) {
super(view);
mView = view;
imageView = (ImageView) view.findViewById(R.id.list_item_book_imageview);
}
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.list_item_Book, parent, false);
ViewHolder vh = new ViewHolder(itemView);
mVh = vh;
return vh;
}
@Override
public void onBindViewHolder(ViewHolder viewHolder, Cursor cursor) {
DatabaseUtils.dumpCursor(cursor);
int imageIndex = cursor.getColumnIndex(BookColumns.COLUMN_IMAGEPATH);
String image = cursor.getString(imageIndex);
if (image != null) {
Picasso.with(viewHolder.imageView.getContext())
.load("http://image.tmdb.org/t/p/w400/" + image)
.resize(600, 800)
.centerCrop()
.into(viewHolder.imageView);
}
}
}
Upvotes: 0
Views: 486
Reputation: 35661
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.VH> {
private Cursor cursor;
public MyAdapter(Cursor c) {
cursor = c;
}
// View Holder
public static class VH extends RecyclerView.ViewHolder {
public TextView _textView;
public ImageView _icon;
public VH(View v) {
super(v);
_textView = (TextView) v.findViewById(android.R.id.text1);
_icon = (ImageView) v.findViewById(android.R.id.icon);
}
}
@Override
public MyAdapter.VH onCreateViewHolder(ViewGroup parent, int viewType) {
// inflate the layout and create a new ViewHolder with it.
final LayoutInflater inflater = LayoutInflater.from(parent.getContext());
final View v = inflater.inflate(R.layout.baseitem, parent, false);
return new VH(v);
}
@Override
public void onBindViewHolder(final VH holder, int position) {
// This is called whenever the RecyclerView needs to bind data to the viewholders.
// This will happen continuously whilst scrolling.
// Viewholders scrolled off screen are likely to be reused.
// so make sure you reset any values in it to the defaults.
cursor.moveToPosition(position);
holder._textView.setText(cursor.getString(cursor.getColumnIndex("MyStringData")));
holder._icon.setImageResource(R.drawable.icv_arrow_up);
holder._icon.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.i("TAG", holder._textView.getText().toString() + " was pressed");
}
});
}
@Override
public int getItemCount() {
return cursor.getCount();
}
}
Upvotes: 1