private void GetProducts()
{
Category = items[items.Count - 1].CategoryID;
SubCategory = items[items.Count - 1].SubCategoryID;
ProductID = items[items.Count - 1].ProductID;
FirebaseDatabase database = FirebaseDatabase.Instance;
FirebaseCallback p = new FirebaseCallback();
p.GetSingleItem(Category, SubCategory, ProductID, database);
p.GetProduct += (sender, obj) =>
{
if (mAdapter != null && mAdapter.Product.Count > 0)
{
mAdapter.AddList(obj);
}
else
{
mAdapter = new Product_Adapter(this, obj, this);
mRecyclerView.SetAdapter(mAdapter);
}
items.RemoveAt(items.Count - 1);
GetProducts();
if (items.Count == 0)
{
}
};
}
private void GetProducts()
{
var mPageLimit = 10;
FirebaseDatabase database = FirebaseDatabase.Instance;
FirebaseCallback p = new FirebaseCallback();
if (sorted)
{
p.GetProducts(Category, SubCategory, mPageOffset, mPageLimit, sortByAsc, database);
}
else
{
p.GetProducts(Category, SubCategory, mPageOffset, mPageLimit, database);
}
p.GetProduct += (sender, obj) =>
{
mPageOffset = mPageOffset + mPageLimit;
mLoaderEffect.Visibility = ViewStates.Gone;
mLoaderEffect.HideShimmerAdapter();
if (Adapter != null && Adapter.Product.Count > 0)
{
Adapter.AddList(obj);
}
else
{
Adapter = new Product_Adapter(this, obj, this);
recyclerView.SetAdapter(Adapter);
}
LastLoad = obj.Count;
onScrollListener.IsLoading = false;
HideShowProgress();
};
}
private void SeachProducts(string query, string category, string subcategory, string offset)
{
FirebaseDatabase database = FirebaseDatabase.Instance;
FirebaseCallback p = new FirebaseCallback();
p.SearchProducts(query.ToLower(), category, subcategory, offset, database);
p.GetProduct += (sender, obj) =>
{
LastCount = obj.Count;
if (obj.Count > 0)
{
SearchOffset = obj[obj.Count - 1].sort_name;
if (Adapter != null && Adapter.Product.Count > 0)
{
Adapter.AddList(obj);
}
else
{
Adapter = new Product_Adapter(this, obj, this);
recyclerView.SetAdapter(Adapter);
}
onScrollListener.IsLoading = false;
HideShowProgress();
SearchOffset = obj[obj.Count - 1].sort_name;
}
else if (LastCount < 10 && !IsSearchCompleted)
{
maxIndex++;
search?.Invoke(this, null);
}
};
}
public override void OnBackPressed()
{
if (CurrentMode == APIMode.Search)
{
Adapter.Clear();
Adapter = null;
GetProducts();
SupportActionBar.Title = CategoryTitle;
CurrentMode = APIMode.Direct;
}
else
{
base.OnBackPressed();
}
}
private void SeachProducts(string query, string offset)
{
//Clear adapter
FirebaseDatabase database = FirebaseDatabase.Instance;
FirebaseCallback p = new FirebaseCallback();
p.SearchProducts(query.ToLower(), Category, SubCategory, offset, database);
p.GetProduct += (sender, obj) =>
{
if (obj.Count > 0)
{
if (Adapter != null && Adapter.Product.Count > 0)
{
Adapter.AddList(obj);
}
else
{
Adapter = new Product_Adapter(this, obj, this);
recyclerView.SetAdapter(Adapter);
}
onScrollListener.IsLoading = false;
HideShowProgress();
SearchOffset = obj[obj.Count - 1].sort_name;
}
else if (Adapter.Product.Count == 0)
{
onScrollListener.IsLoading = false;
HideShowProgress();
var builder = new Android.App.AlertDialog.Builder(this);
builder.SetTitle(Resource.String.dlg_info);
builder.SetMessage(Resource.String.info_nomatch_result);
builder.SetPositiveButton(Resource.String.dialog_ok, delegate
{
builder.Dispose();
});
builder.Show();
}
else
{
onScrollListener.IsLoading = false;
HideShowProgress();
}
LastLoad = obj.Count;
};
}
private void ChangeLayout(RecyclerView _recyclerView)
{
if (Adapter != null && Adapter.ItemCount > 0)
{
int scrollPosition = 0;
LinearLayoutManager mLayoutManager;
// If a layout manager has already been set, get current scroll position.
if (_recyclerView.GetLayoutManager() != null)
{
scrollPosition = ((LinearLayoutManager)_recyclerView.GetLayoutManager())
.FindFirstCompletelyVisibleItemPosition();
}
switch (mCurrentLayoutManagerType)
{
case MyEnum.ListView:
mLayoutManager = new LinearLayoutManager(this);
mCurrentLayoutManagerType = MyEnum.Thumbnail;
ChangeMenuIconToThumbnail();
_recyclerView.SetLayoutManager(mLayoutManager);
onScrollListener = new XamarinRecyclerViewOnScrollListener(mLayoutManager);
break;
case MyEnum.Thumbnail:
var mGridLayoutManager = new GridLayoutManager(this, 2, GridLayoutManager.Vertical, false);
mCurrentLayoutManagerType = MyEnum.GridView;
ChangeMenuIconToList();
_recyclerView.SetLayoutManager(mGridLayoutManager);
onScrollListener = new XamarinRecyclerViewOnScrollListener(mGridLayoutManager);
break;
case MyEnum.GridView:
mLayoutManager = new LinearLayoutManager(this);
mCurrentLayoutManagerType = MyEnum.ListView;
ChangeMenuIconToList();
_recyclerView.SetLayoutManager(mLayoutManager);
onScrollListener = new XamarinRecyclerViewOnScrollListener(mLayoutManager);
break;
default:
mLayoutManager = new LinearLayoutManager(this);
mCurrentLayoutManagerType = MyEnum.ListView;
ChangeMenuIconToList();
_recyclerView.SetLayoutManager(mLayoutManager);
onScrollListener = new XamarinRecyclerViewOnScrollListener(mLayoutManager);
break;
}
Adapter = new Product_Adapter(this, Adapter.Product, this);
Adapter.SetLayoutManager(mCurrentLayoutManagerType);
_recyclerView.SetAdapter(Adapter);
_recyclerView.ScrollToPosition(scrollPosition);
recyclerView.RemoveOnScrollListener(onScrollListener);
onScrollListener.LoadMoreEvent += OnScrollListener_LoadMoreEventAsync;
onScrollListener.OnHide += OnScrollListener_OnHide;
onScrollListener.OnShow += OnScrollListener_OnShow;
recyclerView.AddOnScrollListener(onScrollListener);
//Decorate Recyclerview
if (mCurrentLayoutManagerType == MyEnum.GridView)
{
_recyclerView.AddItemDecoration(verticalDecoration);
}
else
{
_recyclerView.AddItemDecoration(verticalDecoration);
}
}
}