public override android.view.View getView(int flatListPos, android.view.View convertView
, android.view.ViewGroup parent)
{
android.widget.ExpandableListConnector.PositionMetadata posMetadata = getUnflattenedPos
(flatListPos);
android.view.View retValue;
if (posMetadata.position.type == android.widget.ExpandableListPosition.GROUP)
{
retValue = mExpandableListAdapter.getGroupView(posMetadata.position.groupPos, posMetadata
.isExpanded(), convertView, parent);
}
else
{
if (posMetadata.position.type == android.widget.ExpandableListPosition.CHILD)
{
bool isLastChild = posMetadata.groupMetadata.lastChildFlPos == flatListPos;
retValue = mExpandableListAdapter.getChildView(posMetadata.position.groupPos, posMetadata
.position.childPos, isLastChild, convertView, parent);
}
else
{
// TODO: clean exit
throw new java.lang.RuntimeException("Flat list position is of unknown type");
}
}
posMetadata.recycle();
return(retValue);
}
public override long getItemId(int flatListPos)
{
android.widget.ExpandableListConnector.PositionMetadata posMetadata = getUnflattenedPos
(flatListPos);
long groupId = mExpandableListAdapter.getGroupId(posMetadata.position.groupPos);
long retValue;
if (posMetadata.position.type == android.widget.ExpandableListPosition.GROUP)
{
retValue = mExpandableListAdapter.getCombinedGroupId(groupId);
}
else
{
if (posMetadata.position.type == android.widget.ExpandableListPosition.CHILD)
{
long childId = mExpandableListAdapter.getChildId(posMetadata.position.groupPos, posMetadata
.position.childPos);
retValue = mExpandableListAdapter.getCombinedChildId(groupId, childId);
}
else
{
// TODO: clean exit
throw new java.lang.RuntimeException("Flat list position is of unknown type");
}
}
posMetadata.recycle();
return(retValue);
}
/// <summary>Expand a group in the grouped list view</summary>
/// <param name="groupPos">the group to be expanded</param>
internal virtual bool expandGroup(int groupPos)
{
android.widget.ExpandableListConnector.PositionMetadata pm = getFlattenedPos(android.widget.ExpandableListPosition
.obtain(android.widget.ExpandableListPosition.GROUP, groupPos, -1, -1));
bool retValue = expandGroup(pm);
pm.recycle();
return(retValue);
}
internal static android.widget.ExpandableListConnector.PositionMetadata obtain(int
flatListPos, int type, int groupPos, int childPos, android.widget.ExpandableListConnector
.GroupMetadata groupMetadata, int groupInsertIndex)
{
android.widget.ExpandableListConnector.PositionMetadata pm = getRecycledOrCreate(
);
pm.position = android.widget.ExpandableListPosition.obtain(type, groupPos, childPos
, flatListPos);
pm.groupMetadata = groupMetadata;
pm.groupInsertIndex = groupInsertIndex;
return(pm);
}
/// <summary>Collapse a group in the grouped list view</summary>
/// <param name="groupPos">position of the group to collapse</param>
internal virtual bool collapseGroup(int groupPos)
{
android.widget.ExpandableListConnector.PositionMetadata pm = getFlattenedPos(android.widget.ExpandableListPosition
.obtain(android.widget.ExpandableListPosition.GROUP, groupPos, -1, -1));
if (pm == null)
{
return(false);
}
bool retValue = collapseGroup(pm);
pm.recycle();
return(retValue);
}
internal virtual bool collapseGroup(android.widget.ExpandableListConnector.PositionMetadata
posMetadata)
{
if (posMetadata.groupMetadata == null)
{
return(false);
}
// Remove the group from the list of expanded groups
mExpGroupMetadataList.remove(posMetadata.groupMetadata);
// Refresh the metadata
refreshExpGroupMetadataList(false, false);
// Notify of change
notifyDataSetChanged();
// Give the callback
mExpandableListAdapter.onGroupCollapsed(posMetadata.groupMetadata.gPos);
return(true);
}
internal virtual bool expandGroup(android.widget.ExpandableListConnector.PositionMetadata
posMetadata)
{
if (posMetadata.position.groupPos < 0)
{
// TODO clean exit
throw new java.lang.RuntimeException("Need group");
}
if (mMaxExpGroupCount == 0)
{
return(false);
}
// Check to see if it's already expanded
if (posMetadata.groupMetadata != null)
{
return(false);
}
if (mExpGroupMetadataList.size() >= mMaxExpGroupCount)
{
// TODO: Collapse something not on the screen instead of the first one?
// TODO: Could write overloaded function to take GroupMetadata to collapse
android.widget.ExpandableListConnector.GroupMetadata collapsedGm = mExpGroupMetadataList
.get(0);
int collapsedIndex = mExpGroupMetadataList.indexOf(collapsedGm);
collapseGroup(collapsedGm.gPos);
if (posMetadata.groupInsertIndex > collapsedIndex)
{
posMetadata.groupInsertIndex--;
}
}
android.widget.ExpandableListConnector.GroupMetadata expandedGm = android.widget.ExpandableListConnector
.GroupMetadata.obtain(android.widget.ExpandableListConnector.GroupMetadata.REFRESH
, android.widget.ExpandableListConnector.GroupMetadata.REFRESH, posMetadata.position
.groupPos, mExpandableListAdapter.getGroupId(posMetadata.position.groupPos));
mExpGroupMetadataList.add(posMetadata.groupInsertIndex, expandedGm);
// Refresh the metadata
refreshExpGroupMetadataList(false, false);
// Notify of change
notifyDataSetChanged();
// Give the callback
mExpandableListAdapter.onGroupExpanded(expandedGm.gPos);
return(true);
}
