protected override void OnItemCountChangeRequested(PackedGridExample adapter, int newCount)
{
base.OnItemCountChangeRequested(adapter, newCount);
_CurrentFreeID = 0;
adapter.LazyData.ResetItems(newCount);
}
// Just a hack to force an entire refresh of the adapter, as if it was first initialized.
// This is needed because some properties are only read at initialization, but we want to force
// their value to be read & the entire view updated at each press of this toggle
void ForceReinitializeKeepingModels(PackedGridExample adapter)
{
var originalData = adapter.LazyData;
// Resetting to 0 count clears everything, including visible items, so nothing will be recycled
adapter.LazyData = new DataHelpers.LazyDataHelper <BasicModel>(adapter, null);
adapter.ResetItems(0);
// Do recalculations since layout values could've beed changed
adapter.Parameters.PrepareForInit(false);
adapter.Parameters.InitIfNeeded(adapter);
// Set back the original data and update the view
adapter.LazyData = originalData;
adapter.LazyData.NotifyListChangedExternally();
}
