Does it support non sticky footer?

[laukaichung]

Read this #68
but I still don't understand how to use FooterAdapter to add a non-sticky footer to the recyclerlist.
Suppose I have an xml layout as a footer,

<LinearLayout
        android:id="@+id/footer"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
       <Button
                android:id="@+id/delete_item"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:text="Delete"/>
</LinearLayout>

what is the way of adding this layout as a footer to the adapter ? I'm not sure what to add to footerAdapter.add().

Took a shot in the dark after reading this tutorial:

FooterView:

public class FooterView extends AbstractItem<FooterView, FooterView.ViewHolder> {
    public FooterView() {
    }

    @Override
    public int getType() {
        return R.id.footer;
    }
    @Override
    public int getLayoutRes() {
        return R.layout.footer;
    }
    @Override
    public void bindView(ViewHolder holder) {
        super.bindView(holder);
        holder.pagerButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                     // sth action
            }
        });
    }
    protected static class ViewHolder extends RecyclerView.ViewHolder {
        View pagerButton;
        public ViewHolder(View itemView) {
            super(itemView);
            pagerButton = itemView.findViewById(R.id.delete_item);
        }
    }
}

In the Activity.class:

GenericItemAdapter<ItemModel, ItemAdapter> adapter = new GenericItemAdapter<>(ItemAdapter.class, ItemModel.class);
fastAdapter = new FastAdapter();
fastAdapter.withSelectable(false);
FooterAdapter<FooterView> footerAdapter = new FooterAdapter();
footerAdapter.add(new FooterView());
GridLayoutManager gridLayoutManager = new GridLayoutManager(this,2);
recyclerView.setLayoutManager(gridLayoutManager);
recyclerView.setAdapter(footerAdapter.wrap(adapter.wrap(fastAdapter)));
adapter.addModel(productItem);

But I am getting errors at footerAdapter.add(new FooterView());

java.lang.NullPointerException
at com.mikepenz.fastadapter.AbstractAdapter.mapPossibleType(AbstractAdapter.java:244)
at com.mikepenz.fastadapter.AbstractAdapter.mapPossibleTypes(AbstractAdapter.java:233)
at com.mikepenz.fastadapter.adapters.ItemAdapter.add(ItemAdapter.java:323)
at com.mikepenz.fastadapter.adapters.ItemAdapter.add(ItemAdapter.java:309)

I have also tried the same with HeaderAdapter. It also shows the same error with the add() method.

[mikepenz]

@stonecold123 where do you "wrap" the adapters as done here:
https://github.com/mikepenz/FastAdapter/blob/develop/app/src/main/java/com/mikepenz/fastadapter/app/GenericItemActivity.java#L61

[laukaichung]

Do you mean I need to use FastScrollIndicatorAdapter and wrap the footeradapter with it?

[mikepenz]

@stonecold123 you have the GenericItemAdapter and the FooterAdapter so you need to do the following (the above link was just a sample)

footerAdapter.wrap(adapter);

and you then apply the footerAdapter to the RecyclerView

[laukaichung]

Thanks mike,just solved it. Also, I should have put footerAdapter.add(new FooterView()); after the the adapters are set.

FooterAdapter<FooterView> footerAdapter = new FooterAdapter();
GridLayoutManager gridLayoutManager = new GridLayoutManager(this,2);
recyclerView.setLayoutManager(gridLayoutManager);
recyclerView.setAdapter(footerAdapter.wrap(adapter.wrap(fastAdapter)));
adapter.addModel(productItem);
footerAdapter.add(new FooterView());

[mikepenz]

@stonecold123 yes correctly the FooterAdapter already needs the global FastAdapter because the FastAdapter will manage everything. and without this it will fail too.

(In your case the FastAdapter is the GenericItemAdapter which is FastAdapter + 1 GenericItemAdapter combined)