NineGridView

NineGridView nineGridView = (NineGridView)findViewById(R.id.nine_grid_view);
NineGridAdapter nineGridAdapter = new DemoNineGridAdapter(MainActivity.this, generateDemoList(new Random().nextInt(10)));
nineGridView.setNineGridAdapter(nineGridAdapter);
private List<String> generateDemoList(int size) {
 List<String> imageUrl = new ArrayList<>();
 int count;
 if (size <= 0) {
 count = 1;
 } else {
 count = size;
 }
 for (int i = 0; i < count; i++) {
 imageUrl.add("http://img5.duitang.com/uploads/item/201306/24/20130624230830_UWTWS.thumb.700_0.jpeg");
 }
 return imageUrl;
 }
public class DemoNineGridAdapter extends NineGridAdapter<String> {
 private List<String> imageList;
 private Context context;
 public DemoNineGridAdapter(Context context, List<String> imageList) {
 this.imageList = imageList;
 this.context = context;
 }
 @Override
 public int getCount() {
 return imageList.size();
 }
 @Override
 public int getItemLayoutRes(@LayoutRes int position) {
 if (imageList.size() == 1) {
 return R.layout.item_view_big_image;
 } else {
 return R.layout.item_view_normal;
 }
 }
 @Override
 public void onBindItemView(int position, View view) {
 ImageView imageView = (ImageView) view.findViewById(R.id.image_view);
 Glide.with(context).load(getItem(position)).placeholder(R.color.colorAccent).into(imageView);
 }
 @Override
 public String getItem(int position) {
 return imageList.get(position);
 }
}