Question

有一个列表视图，我在运行时获取图像。使用毕加索库完成图像的提取。

但是每次我滚动，图像都会被填满。我不知道是什么问题。请帮助。代码如下。

 public class example {
         int n= 7;
 public static void main (String[] args){
         System.out.println(" the number here is  "+ n);}}

}

Answer 1

这是ListView的一个问题。我强烈建议您使用recyclerview。尝试;

public class FeedAdapter
        extends RecyclerView.Adapter<FeedAdapter.ViewHolder> {
    private Context context;
    private final List<Feed> feedList;

    public FeedAdapter(Context context, List<Feed> feeds) {
        this.context = context;
        this.feedList = feeds;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.feed_list_item, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(final ViewHolder holder, int position) {
        holder.mItem = feedList.get(position);

        if (holder.mItem.getImageStatus().equals("1"))
            Picasso.with(context).load(holder.mItem.getQuestionId()).into(holder.something);
        else{
            ////
        }

    }

    @Override
    public int getItemCount() {
        return feedList.size();
    }

    class ViewHolder extends RecyclerView.ViewHolder {
        public final View view;

        @BindView(R.id.something)
        ImageView something;
        Feed mItem;

        ViewHolder(View view) {
            super(view);
            ButterKnife.bind(this, view);
            this.view = view;
        }
    }

}

毕加索每次向下滚动时都会改变图像

1 个答案: