private void _onReorder(int oldIndex, int newIndex)
{
setState(() =>
{
if (newIndex > oldIndex)
{
newIndex -= 1;
}
_ListItem item = _items[oldIndex];
_items.RemoveAt(oldIndex);
_items.Insert(newIndex, item);
});
}
private Widget buildListTile(_ListItem item)
{
Widget secondary = new Text(
"Even more additional list item information appears on line three."
);
Widget listTile = null;
switch (_itemType)
{
case _ReorderableListType.threeLine:
listTile = new CheckboxListTile(
key: Key.key(item.value),
isThreeLine: true,
value: item.checkState ?? false,
onChanged: (bool?newValue) => { setState(() => { item.checkState = newValue.Value; }); },
title: new Text($"This item represents {item.value}."),
subtitle: secondary,
secondary: new Icon(Icons.drag_handle)
);
break;
case _ReorderableListType.horizontalAvatar:
case _ReorderableListType.verticalAvatar:
listTile = new Container(
key: Key.key(item.value),
height: 100.0f,
width: 100.0f,
child: new CircleAvatar(child: new Text(item.value),
backgroundColor: Colors.green
)
);
break;
}
return(listTile);
}