/// <inheritdoc/>
protected override void UpdateViewsHolder(ChildAdapterViewsHolder newOrRecycled)
{
// Initialize the views from the associated model
ChildAdapterModel childAdapterModel = Data[newOrRecycled.ItemIndex];
newOrRecycled.UpdateViews(childAdapterModel);
if (childAdapterModel.items == null) // first time updating the child scroll view => download initial items
{
CreteRandomItemsForChildScrollView(newOrRecycled, childAdapterModel, UnityEngine.Random.Range(1, MAX_ITEMS_ALLOWED_IN_CHILD));
}
else
{
newOrRecycled.childGrid.SetItemsAndUpdate(childAdapterModel.items); // already having the items => update directly
}
}
void CreteRandomItemsForChildScrollView(ChildAdapterViewsHolder viewsHolder, ChildAdapterModel childScrollViewModel, int count)
{
int nextFreeId = viewsHolder.childGrid.GetItemsCount(); // the "id" (used only to show it in TitleText) for the first created item is the current items count;
var list = new List <MyCellModel>(count);
for (int i = 0; i < count; i++)
{
var cellModel = new MyCellModel()
{
title = nextFreeId + "",
color = DemosUtil.GetRandomColor(false)
};
++nextFreeId;
list.Add(cellModel);
}
// The childScrollViewModel keeps track of items, because the
// child script is not a "persistent storage" - it's being constantly recycled
childScrollViewModel.items = new List <MyCellModel>(list);
viewsHolder.childGrid.SetItemsAndUpdate(list);
}
public void UpdateViews(ChildAdapterModel model)
{
titleText.text = model.title;
}