Drop callback about fastadapter HOT 8 CLOSED

@Override
    public void onMoved(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, int fromPos, RecyclerView.ViewHolder target, int toPos, int x, int y) {
        super.onMoved(recyclerView, viewHolder, fromPos, target, toPos, x, y);
    }

public class ImprovedDragCallback extends SimpleDragCallback {

    private Integer mFrom = null;
    private Integer mTo = null;
    private ImprovedItemTouchCallback callback;

    public ImprovedDragCallback(ImprovedItemTouchCallback itemTouchCallback) {
        super(itemTouchCallback);
        this.callback = itemTouchCallback;
    }

    @Override
    public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
        if (target.itemView.getTag() instanceof IDraggable) {
            if (((IDraggable) target.itemView.getTag()).isDraggable()) {
                if (mFrom == null) {
                    mFrom = viewHolder.getAdapterPosition();
                }
                mTo = target.getAdapterPosition();

                return super.onMove(recyclerView, viewHolder, target);
            }
        }

        return false;
    }

    @Override
    public void clearView(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
        super.clearView(recyclerView, viewHolder);

        if (mFrom != null && mTo != null) {
            callback.onDrop(mFrom, mTo);
        }

        // clear saved positions
        mFrom = mTo = null;
    }
}