public
class
MultipleItemsList
extends
ListActivity {
private
MyCustomAdapter mAdapter;
@Override
public
void
onCreate(Bundle savedInstanceState) {
super
.onCreate(savedInstanceState);
mAdapter =
new
MyCustomAdapter();
for
(
int
i =
1
; i <
50
; i++) {
mAdapter.addItem(
"item "
+ i);
if
(i %
4
==
0
) {
mAdapter.addSeparatorItem(
"separator "
+ i);
}
}
setListAdapter(mAdapter);
}
private
class
MyCustomAdapter
extends
BaseAdapter {
private
static
final
int
TYPE_ITEM =
0
;
private
static
final
int
TYPE_SEPARATOR =
1
;
private
static
final
int
TYPE_MAX_COUNT = TYPE_SEPARATOR +
1
;
private
ArrayList mData =
new
ArrayList();
private
LayoutInflater mInflater;
private
TreeSet mSeparatorsSet =
new
TreeSet();
public
MyCustomAdapter() {
mInflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public
void
addItem(
final
String item) {
mData.add(item);
notifyDataSetChanged();
}
public
void
addSeparatorItem(
final
String item) {
mData.add(item);
mSeparatorsSet.add(mData.size() -
1
);
notifyDataSetChanged();
}
@Override
public
int
getItemViewType(
int
position) {
return
mSeparatorsSet.contains(position) ? TYPE_SEPARATOR : TYPE_ITEM;
}
@Override
public
int
getViewTypeCount() {
return
TYPE_MAX_COUNT;
}
@Override
public
int
getCount() {
return
mData.size();
}
@Override
public
String getItem(
int
position) {
return
mData.get(position);
}
@Override
public
long
getItemId(
int
position) {
return
position;
}
@Override
public
View getView(
int
position, View convertView, ViewGroup parent) {
ViewHolder holder =
null
;
int
type = getItemViewType(position);
System.out.println(
"getView "
+ position +
" "
+ convertView +
" type = "
+ type);
if
(convertView ==
null
) {
holder =
new
ViewHolder();
switch
(type) {
case
TYPE_ITEM:
convertView = mInflater.inflate(R.layout.item1,
null
);
holder.textView = (TextView)convertView.findViewById(R.id.text);
break
;
case
TYPE_SEPARATOR:
convertView = mInflater.inflate(R.layout.item2,
null
);
holder.textView = (TextView)convertView.findViewById(R.id.textSeparator);
break
;
}
convertView.setTag(holder);
}
else
{
holder = (ViewHolder)convertView.getTag();
}
holder.textView.setText(mData.get(position));
return
convertView;
}
}
public
static
class
ViewHolder {
public
TextView textView;
}
}