How to change icon using list to grid

Question

I am changing list to grid and grid to list using StaggeredGridlayoutmanager, but i want to change icon while changing the view,,like if view is in list mode i want to display grid icon and and view is in grid mode i want to display list mode

 case R.id.product_grid:

                isViewWithCatalog = !isViewWithCatalog;
                supportInvalidateOptionsMenu();

                rv.setLayoutManager(isViewWithCatalog ? new LinearLayoutManager(this) : new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL));
                rv.setAdapter(rvAdapter);
                break;

MyAdapter

  @Override
        public  RecyclerViewHolders onCreateViewHolder(ViewGroup parent, int viewType) {

            View layoutView = LayoutInflater.from(parent.getContext()).inflate(isViewWithCatalog ? R.layout.productlistview : R.layout.productgrids, null);
            RecyclerViewHolders rcv = new RecyclerViewHolders(layoutView);
            return rcv;


        }

score 0 · Accepted Answer · answered Jul 25 '16 at 10:46

You can maintain one boolean variable

case R.id.product_grid:
isGrid = true;
                isViewWithCatalog = !isViewWithCatalog;
                supportInvalidateOptionsMenu();

                rv.setLayoutManager(isViewWithCatalog ? new LinearLayoutManager(this) : new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL));
                rv.setAdapter(rvAdapter);
                break;

case R.id.product_list:
isGrid = false;
invalidateOptionMenu() or getActivity.invalidateOptionMenu() // If it is fragment

@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.menu_product, menu);
        MenuItem list = menu.findItem(R.id.list);
        MenuItem grid= menu.findItem(R.id.list);
        if(isGrid)
          grid.setVisible(true);
          list.setvisible(false)
        else
          list.setVisible(true);
          grid.setVisible(false);

        return super.onCreateOptionsMenu(menu);
    }

How to change icon using list to grid

1 Answers1