How to set different columns for rows in android gridview

Question

I want to have a gridview similar to this

Every odd numbered row will

Answer 1

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

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

<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/filter_subtypes" android:layout_width="match_parent" android:layout_height="match_parent" />

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.

Answer 2

I guess the best way to do is using recycler view.. Also it is preferred over list/grid for performance

May be below links can help a lot - All are related to Two way View by Lucas

https://github.com/lucasr/twoway-view

https://plus.google.com/+LucasRocha/posts/WBaryNqAHiy

http://lucasr.org/2014/07/31/the-new-twowayview/

Answer 3

Create two different XML files and inflate based on position in your Adapter like below.

if(position%2==0){
//Inflate Even number layout with 4 images
}else{
//Inflate ODD number layout with 2 images
}

Answer 4

If you are using RecyclerView for GridView, then there is solution that should work for you:

GridLayoutManager layoutManager = new GridLayoutManager(this, 4);
layoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
    @Override
    public int getSpanSize(int position) {
         int mod = position % 6;    

         if(position == 0 || position == 1)
              return 2;
         else if(position < 6)
              return 1;
         else if(mod == 0 || mod == 1)
              return 2;
         else
              return 1;
    }
});

recyclerView.setLayoutManager(layoutManager);

Hope this work for you!