How to set different columns for rows in android gridview

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旧时难觅i
旧时难觅i 2020-12-01 07:17

I want to have a gridview similar to this

\"enter

Every odd numbered row will

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  •  星月不相逢
    2020-12-01 08:14

    I have something similar and i solved with the new RecyclerView.

    I created a Fragment with an a RecyclerView. RecyclerView on xml:

    
    

    On your Fragment/Activity (OnViewCreated in my fragment case). I find the RecyclerView and set an Adapter- a normal Adapter class inherit from RecyclerView.Adapter< YOUR VIEW HOLDER class >- And then i create a GridLayoutManager

    final GridLayoutManager mng_layout = new GridLayoutManager(this.getActivity(), TOTAL_CELLS_PER_ROW/*In your case 4*/);
    


    Then i override this method to set a dynamic numbers of columns (cells)

    mng_layout.setSpanSizeLookup( new GridLayoutManager.SpanSizeLookup() {
                @Override
                public int getSpanSize(int position) {
                    switch( adapterSubtype.getItemViewType(position) ) {
                        case FilterSubtypesAdapter.TYPE_LOW:
                            return TOTAL_CELLS_PER_ROW;
                        case FilterSubtypesAdapter.TYPE_HIGH:
                            return 2;
                        default:
                            return -1;
                    }
                }
            });
    myRecyclerView.setLayoutManager(mng_layout);
    

    With this you will get dynamic numbers of cell on your rows.

    EXTRA: Then if you are using the same view/type view on your adapter, you will get the same w & h view. You will need to create 2 xml views for TYPE_HIGH and other view for TYPE_LOW.

    So, in your adapter, you need to have 2 kind of data (1 for high images and 1 for low images). You must override this methods

    @Override
    public SubtypeViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = null;
        if (viewType==TYPE_HIGH) {
            view = inflater.inflate(R.layout.item_image_high, parent, false);
        } else {
            view = inflater.inflate(R.layout.item_image_low, parent, false);
        }
        return new SubtypeViewHolder(view, viewType);
    }
    
     @Override
     public int getItemViewType(int position) {
         return (list.get(position).getType()==Subtype_type.HIGH) ? TYPE_HIGH : TYPE_LOW;
     }
    

    I hope i was clear, any problem tell me.

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