Dynamically change the number of columns of a GridLayoutManager

Question

I am actually using a GridLayoutManager with two columns in my app and I would like to have one column depending on the view type used.

Here is the code I have in the me

Answer 1

mGridLayoutManager = new GridLayoutManager(mContext, 2);
mGridLayoutManager.setSpanSizeLookup(onSpanSizeLookup);    

/**
 * Helper class to set span size for grid items based on orientation and device type
 */
GridLayoutManager.SpanSizeLookup onSpanSizeLookup = new GridLayoutManager.SpanSizeLookup() {
    @Override
    public int getSpanSize(int position) {
        return mHomeListAdapter.getItemViewType(position) == TYPE_PREMIUM ? 2 : 1;
    }
};