public class CamerasAdapter extends AbstractAdapter<Camera> {

    private static final int TYPE_BIG_IMAGE = 0;
    private static final int TYPE_DUAL_IMAGE = 1;
    private static final int TYPE_ADVERSING = 2;
    private static final int TYPE_MAX_COUNT = 3;

    private int currentType = 0;
    private int jump = 0;

    private Context mContext;
    private int mCount;
    private ViewHolder mViewHolder;

    private OnOpenDetailsClick mCallbackDetails;

    public CamerasAdapter(Context context, List<Camera> items, OnOpenDetailsClick onOpenDetailsClick) {
        super(context, items);
        mContext = context;
        mCallbackDetails = onOpenDetailsClick;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        DebugUtil.log("POSITION: " + position);

        int typeItem = getItemViewType(position);
        mViewHolder = new ViewHolder();

        if(convertView == null) {

            switch (typeItem) {
                case TYPE_BIG_IMAGE:
                    convertView = LayoutInflater.from(mContext).inflate(R.layout.adapter_thumbnail_big, parent, false);
                    mViewHolder.background = (ImageView) convertView.findViewById(R.id.big_thumbnail);
                    mViewHolder.cityName = (TextView) convertView.findViewById(R.id.city);
                    mViewHolder.cameraName = (TextView) convertView.findViewById(R.id.camera_name);
                    break;
                case TYPE_DUAL_IMAGE:
                    convertView = LayoutInflater.from(mContext).inflate(R.layout.adapter_thumbnail_double, parent, false);
                    mViewHolder.background = (ImageView) convertView.findViewById(R.id.thumbnail_one);
                    mViewHolder.cityName = (TextView) convertView.findViewById(R.id.city_one);
                    mViewHolder.cameraName = (TextView) convertView.findViewById(R.id.camera_name_one);
//
//                    mViewHolder.backgroundTwo = (ImageView) convertView.findViewById(R.id.thumbnail_two);
//                    mViewHolder.cityNameTwo = (TextView) convertView.findViewById(R.id.city_two);
//                    mViewHolder.cameraNameTwo = (TextView) convertView.findViewById(R.id.camera_name_two);
                    break;
                case TYPE_ADVERSING:
                    convertView = LayoutInflater.from(mContext).inflate(R.layout.adapter_thumbnail_advertising, parent, false);
                    mViewHolder.mAd = (AdView) convertView.findViewById(R.id.ad_view);
                    break;
            }

            convertView.setTag(mViewHolder);

        } else {
            mViewHolder = (ViewHolder) convertView.getTag();
        }

        if(position != mViewHolder.position) {

            if (typeItem == TYPE_BIG_IMAGE) {

                Camera camera = getItem(position + jump);

                mViewHolder.cityName.setText(camera.getCity() + " / " + camera.getStatePrefix());
                mViewHolder.cameraName.setText(camera.getTitle());

                mViewHolder.background.setTag(position + jump);
                mViewHolder.cameraName.setTag(position + jump);
                mViewHolder.cityName.setTag(position + jump);
                mViewHolder.position = position;

                mViewHolder.background.setOnClickListener(onItemClick);

                ImageLoader.getInstance().displayImage(TagApplication.URL_TEMP_SERVER + camera.getUrlImage(), mViewHolder.background);

            } else if (typeItem == TYPE_DUAL_IMAGE) {

                Camera camera = getItem(position);

                mViewHolder.position = position;

                mViewHolder.cityName.setText(camera.getCity() + " / " + camera.getStatePrefix());
                mViewHolder.cameraName.setText(camera.getTitle());

                mViewHolder.background.setTag(position);
                mViewHolder.cameraName.setTag(position);
                mViewHolder.cityName.setTag(position);

                mViewHolder.background.setOnClickListener(onItemClick);

                ImageLoader.getInstance().displayImage(TagApplication.URL_TEMP_SERVER + camera.getUrlImage(), mViewHolder.background);
//
//                Camera cameraTwo = getItem(position);
//
//                mViewHolder.cityNameTwo.setText(cameraTwo.getCity() + " / " + cameraTwo.getStatePrefix());
//                mViewHolder.cameraNameTwo.setText(cameraTwo.getTitle());
//
//                mViewHolder.backgroundTwo.setTag(position);
//                mViewHolder.cameraNameTwo.setTag(position);
//                mViewHolder.cityNameTwo.setTag(position);
//
//                mViewHolder.backgroundTwo.setOnClickListener(onItemClick);
//
//                ImageLoader.getInstance().displayImage(TagApplication.URL_TEMP_SERVER + cameraTwo.getUrlImage(), mViewHolder.backgroundTwo);


            } else {
                AdRequest adRequest = new AdRequest.Builder().build();
                mViewHolder.mAd.loadAd(adRequest);
                mViewHolder.position = position;
            }
        }

        DebugUtil.log("position: " + position);
        DebugUtil.log("getCount: " + getCount());

        if(position > getCount()){
            //mLoadTrigger.loadTriggered();
            DebugUtil.log("LOAD MORE");
        }

        return convertView;
    }

    @Override
    public int getViewTypeCount() {
        return TYPE_MAX_COUNT;
    }

    @Override
    public int getItemViewType(int position) {

        if(position % 4 == 0) {
            currentType = TYPE_BIG_IMAGE;
        } else if (position % 3 == 0) {
            currentType = TYPE_ADVERSING;
        } else {
            currentType = TYPE_DUAL_IMAGE;
        }

        return currentType;
    }


    private View.OnClickListener onItemClick = new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            Camera camera = getItem(Integer.valueOf(view.getTag().toString()));
            if (camera != null && mCallbackDetails != null) {
                mCallbackDetails.onItemClick(camera);
            }
        }
    };

    private static class ViewHolder {

        private ImageView background;
        private TextView cameraName;
        private TextView cityName;

        private ImageView backgroundTwo;
        private TextView cameraNameTwo;
        private TextView cityNameTwo;

        public int position = -1;
        public Handler handler;

        private AdView mAd;

    }

    public static interface OnOpenDetailsClick {
        public void onItemClick(Camera camera);
    }

}