I am currently stuck by adding a GridView to a row of a ListView, which uses different Layouts for each row. In my humble opinion this should be possible, shouldn't it?. Or how should this be done? Although I always receive a NullPointerException and don't know why.
I use the following code to generate the views for my ListView. The second view should add the GridView to the ListView:
@Override
public View getView(int position, View convertView, ViewGroup parent) {
int type = getItemViewType(position);
if (convertView == null) {
switch (type) {
case TYPE_ITEM0:
convertView = mInflater.inflate(R.layout.foto_details_headline, null);
/* Logic for first Row of the ListView */
break;
case TYPE_ITEM1:
convertView = mInflater.inflate(R.layout.foto_details_gridview, null);
GridView gridview = (GridView) findViewById(R.id.gridview);
Context m = getApplicationContext();
int s = mData.get(0).pictures.size();
//le wild null pointer appears
gridview.setAdapter(new FotoDetailsImageAdapter(convertView.getContext(), mData.get(0).pictures));
break;
}
}
return convertView;
}
The NullPointer appears when I want to set the Adapter (FotoDetailsImageAdapter). Context and pictures are not null - I have already proved this. I suspect that something is wrong with the context which is handled over to the ImageAdapter.
All in all it should look similar to my iOS application - where I have implemented the same logic (also with a listview). The second row consists of a GridView.
Any Ideas? Is it possible to nest a GridView inside a ListView? And how should this be done?
