private void newList(IObservableCollection<?> list) {
observableItemsLayoutID.clear();
videoListViews = new WeakList<View>();
if (list == null) {
currentList = null;
} else {
currentList = new WeakList<Object>();
for (int pos = 0; pos < list.size(); pos++) {
Object item = list.getItem(pos);
// Log.e(VideoStripLayout.class.getName(),
// "item " + item.toString());
insertItem(pos, item);
currentList.add(item);
}
}
}
private void listChanged(CollectionChangedEventArg e, IObservableCollection<?> collection) {
if (e == null) return;
int pos = -1;
switch (e.getAction()) {
case Add:
pos = e.getNewStartingIndex();
for (Object item : e.getNewItems()) {
insertItem(pos, item);
pos++;
}
break;
case Remove:
removeItems(e.getOldItems());
break;
case Replace:
removeItems(e.getOldItems());
pos = e.getNewStartingIndex();
if (pos < 0) pos = 0;
for (Object item : e.getNewItems()) {
insertItem(pos, item);
pos++;
}
break;
case Reset:
newList(collection);
break;
case Move:
// currently the observable array list doesn't create this
// action
throw new IllegalArgumentException("move not implemented");
default:
throw new IllegalArgumentException("unknown action " + e.getAction().toString());
}
if (collection == null) return;
currentList = new WeakList<Object>();
for (pos = 0; pos < collection.size(); pos++) {
Object item = collection.getItem(pos);
currentList.add(item);
}
prepareChildViews();
}