The event onItemClick(AdapterView parent, View v, int position, long
id) does not behave as I would like.
This is a normal situation when filtering an adapter. Although the adapter keeps a reference to the initial unfiltered data from its point of view it has a single set of data on which is based(no matter if is the initial one or resulted from a filter operation). But this shouldn't raise any problems. With the default sdk adapters(or with a subclass), in the onItemClick() you get the position for the current list on which the adapter is based. You could then use getItem() to get data item for that position(again it doesn't matter if initial or filtered).
String data = getItem(position);
int realPosition = list.indexOf(data); // if you want to know the unfiltered position
this will work for lists and Maps(assuming that you use the SimpleAdapter). And for a Maps you always have the option of adding an additional key to set the unfiltered position in the initial list.
If you use your own adapter along with an AutoCompleteTextView you could make the onItemClick() give you the right id(the position however you can't change).
public class SpecialAutoComplete extends AutoCompleteTextView {
public SpecialAutoComplete(Context context) {
super(context);
}
@Override
public void onFilterComplete(int count) {
// this will be called when the adapter finished the filter
// operation and it notifies the AutoCompleteTextView
long[] realIds = new long[count]; // this will hold the real ids from our maps
for (int i = 0; i < count; i++) {
final HashMap<String, String> item = (HashMap<String, String>) getAdapter()
.getItem(i);
realIds[i] = Long.valueOf(item.get("id")); // get the ids from the filtered items
}
// update the adapter with the real ids so it has the proper data
((SimpleAdapterExtension) getAdapter()).setRealIds(realIds);
super.onFilterComplete(count);
}
}
and the adapter:
public class SimpleAdapterExtension extends SimpleAdapter {
private List<? extends Map<String, String>> mData;
private long[] mCurrentIds;
public SimpleAdapterExtension(Context context,
List<? extends Map<String, String>> data, int resource,
String[] from, int[] to) {
super(context, data, resource, from, to);
mData = data;
}
@Override
public long getItemId(int position) {
// this will be used to get the id provided to the onItemClick callback
return mCurrentIds[position];
}
@Override
public boolean hasStableIds() {
return true;
}
public void setRealIds(long[] realIds) {
mCurrentIds = realIds;
}
}
If you also implement the Filter class for the adapter then you could get the ids from there without the need to override the AutoCompleTextView class.
