Context context;
ArrayList<MutilpartBean.DataBean> beanList;
public SubAdapter(Context context, ArrayList<MutilpartBean.DataBean> beanList) {
this.context = context;
this.beanList = beanList;
}
@NonNull
@Override
public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int position) {
//根据解析数据,明确是具体哪种填充视图
View rootView;
RecyclerView.ViewHolder holder;
if (beanList.get(position).getThumbnail_pic_s03() == null && beanList.get(position).getThumbnail_pic_s02() == null) {
//第一种填充的视图布局
rootView = LayoutInflater.from(context).inflate(R.layout.onepic_layout, viewGroup, false);
holder = new OnePicHolder(rootView);
} else if (beanList.get(position).getThumbnail_pic_s03() == null && beanList.get(position).getThumbnail_pic_s02() != null) {
//第二种填充的视图布局
rootView = LayoutInflater.from(context).inflate(R.layout.twopic_layout, viewGroup, false);
holder = new TwoPicHolder(rootView);
} else {
//第三种填充的视图布局
rootView = LayoutInflater.from(context).inflate(R.layout.threepic_layout, viewGroup, false);
holder = new ThreePicHolder(rootView);
}
return holder;
}
@Override
public void onBindViewHolder(@NonNull RecyclerView.ViewHolder viewHolder, int position) {
//具体绑定哪个ViewHolder对象
if (viewHolder instanceof OnePicHolder) {
//通过Picasso加载解析图片
Picasso.get().load(beanList.get(position).getThumbnail_pic_s()).into(((OnePicHolder) viewHolder).iv_firstItem);
} else if (viewHolder instanceof TwoPicHolder) {
Picasso.get().load(beanList.get(position).getThumbnail_pic_s()).into(((TwoPicHolder) viewHolder).iv_twoPic_firstItem);
Picasso.get().load(beanList.get(position).getThumbnail_pic_s02()).into(((TwoPicHolder) viewHolder).iv_twoPic_bottomItem);
} else {
Picasso.get().load(beanList.get(position).getThumbnail_pic_s()).into(((ThreePicHolder) viewHolder).iv_threePic_firstItem);
Picasso.get().load(beanList.get(position).getThumbnail_pic_s02()).into(((ThreePicHolder) viewHolder).iv_threePic_middleItem);
Picasso.get().load(beanList.get(position).getThumbnail_pic_s03()).into(((ThreePicHolder) viewHolder).iv_threePic_bottomItem);
}
}
@Override
public int getItemCount() {
return beanList.size();
}
class OnePicHolder extends RecyclerView.ViewHolder {
private ImageView iv_firstItem;
public OnePicHolder(@NonNull View itemView) {
super(itemView);
iv_firstItem = itemView.findViewById(R.id.iv_firstItem);
}
}
class TwoPicHolder extends RecyclerView.ViewHolder {
private ImageView iv_twoPic_firstItem;
private ImageView iv_twoPic_bottomItem;
public TwoPicHolder(@NonNull View itemView) {
super(itemView);
iv_twoPic_firstItem = itemView.findViewById(R.id.iv_twoPic_firstItem);
iv_twoPic_bottomItem = itemView.findViewById(R.id.iv_twoPic_bottomItem);
}
}
class ThreePicHolder extends RecyclerView.ViewHolder {
private ImageView iv_threePic_firstItem;
private ImageView iv_threePic_middleItem;
private ImageView iv_threePic_bottomItem;
public ThreePicHolder(@NonNull View itemView) {
super(itemView);
iv_threePic_firstItem = itemView.findViewById(R.id.iv_threePic_firstItem);
iv_threePic_middleItem = itemView.findViewById(R.id.iv_threePic_middleItem);
iv_threePic_bottomItem = itemView.findViewById(R.id.iv_threePic_bottomItem);
}
}
}