@Override
public void attach(GraphObjectAdapter<GraphPlace> adapter) {
super.attach(adapter);
this.adapter.setDataNeededListener(
new GraphObjectAdapter.DataNeededListener() {
@Override
public void onDataNeeded() {
// Do nothing if we are currently loading data . We will get notified again when that
// load finishes if the adapter still
// needs more data. Otherwise, follow the next link.
if (!loader.isLoading()) {
loader.followNextLink();
}
}
});
}
@Override
protected void onLoadFinished(
GraphObjectPagingLoader<GraphPlace> loader, SimpleGraphObjectCursor<GraphPlace> data) {
super.onLoadFinished(loader, data);
// We could be called in this state if we are clearing data or if we are being re-attached
// in the middle of a query.
if (data == null || loader.isLoading()) {
return;
}
hideActivityCircle();
if (data.isFromCache()) {
// Only the first page can be cached, since all subsequent pages will be round-tripped.
// Force
// a refresh of the first page before we allow paging to begin. If the first page produced
// no data, launch the refresh immediately, otherwise schedule it for later.
loader.refreshOriginalRequest(
data.areMoreObjectsAvailable() ? CACHED_RESULT_REFRESH_DELAY : 0);
}
}