Right so let's say my adapter looks like this, and by default I always
have 5 cows to render, and 0 horses to render. Cows and Horses each
require a different view type:
public class MyAdapter extends BaseAdapter {
ArrayList<Horse> mHorses;
ArrayList<Cow> mCows;
public MyAdapter() {
mHorses = new ArrayList<Horse>();
mCows = new ArrayList<Cow>();
for (int i = 0; i < 5; i++) { mCows.add(new Cow()); }
}
public void addHorse(Horse h) {
mHorses.add(h);
}
@Override
public int getViewTypeCount() {
int count = 0;
if (mHorses.size() > 0 {
count++;
}
if (mCows.size() > 0) {
count+;
}
return count;
}
}
at some point, I may add a Horse, so now the adapter needs to know
that I have 2 different view types instead of 1. So 'internally', it
would be nice if I could force the adapter to re-call
getViewTypeCount(), something like:
public void addHorse(Horse h) {
mHorses.add(h);
this.pleaseReCallGetViewTypeCount();
}
this example is silly, but I hope it illustrates the problem. What I'm
doing right now is this instead:
mAdapter.addHorse(new Horse());
mListView.setAdapter(mAdapter);
Thanks
On Mar 2, 11:28 am, Mark Murphy <[email protected]> wrote:
> Mark Wyszomierski wrote:
> > Hi,
>
> > I have a list adapter extended from BaseAdapter. Is there any way to
> > get getViewTypeCount() to be called besides the following:
>
> > mMyListView.setAdapter(mMyAdapter): // gets fired as a result of
> > setAdapter().
>
> > Is there any other way to trigger this? The docs for
> > BaseAdapter.getViewTypeCount() say:
>
> > "This method will only be called when when[sic] the adapter is set
> > on the the[sic] AdapterView."
>
> The AdapterView is the one that needs the getViewTypeCount() value, so
> it can maintain appropriate object pools.
>
> > I'm just seeing if there is a way to trigger it inside my custom list
> > adapter class so the external users (activities) don't need to worry
> > about it.
>
> What does that mean?
>
> --
> Mark Murphy (a Commons
> Guy)http://commonsware.com|http://twitter.com/commonsguy
>
> Android Consulting/App Development:http://commonsware.com/consulting
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