RecyclerView 设置跨行显示

//设置跨行显示
mGm.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
@Override
public int getSpanSize(int position) {
switch (mHomeAdapter.getItemViewType(position)) {
case Constant.ItemViewType.TYPE_APPINFO:
return 1;
default:
return 2;
}

}
});