在ConstraintLayout中获取空白RecyclerView
提问于 2018-02-10 14:07:10
我正在尝试使用CardView，在CardView中我放置了2个TextViews和2个ImageViews。My RecyclerView用于显示Cardviews列表
下面是我的Java类模型：
public class Masar {
public String masarName;
public String masarDesc;
public int imgl;
public Masar(String masarName, String masarDesc) {
this.masarName = masarName;
this.masarDesc = masarDesc;
}
public Masar(String masarName, String masarDesc, int imgl) {
this.masarName = masarName;
this.masarDesc = masarDesc;
this.imgl = imgl;
}
public String getMasarName() {
return masarName;
}
public String getMasarDesc() {
return masarDesc;
}
public int getImgl() {
return imgl;
}
}下面是我的Adapter类：
public class MasarAdapter extends RecyclerView.Adapter<MasarAdapter.MyViewHolder> {
private Context mContext;
private List<Masar> masrList;
public MasarAdapter(Context mContext, List<Masar> masrList) {
this.mContext = mContext;
this.masrList = masrList;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.masar_items, parent, false);
return new MyViewHolder(itemView);
}
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
Masar masar=masrList.get(position);
holder.masarName.setText(masar.getMasarName());
holder.masarDesc.setText(masar.getMasarDesc());
}
@Override
public int getItemCount() {
return 0;
}
public class MyViewHolder extends RecyclerView.ViewHolder {
public TextView masarName, masarDesc;
public ImageView masarImg;
public MyViewHolder(View itemView) {
super(itemView);
masarName = (TextView) itemView.findViewById(R.id.masarName);
masarDesc = (TextView) itemView.findViewById(R.id.masarDesc);
masarImg = (ImageView) itemView.findViewById(R.id.imageView4);
}
}
}我已经试了好几次，想找出为什么我得不到任何结果。你能帮我解决一下问题吗？
回答 1
Stack Overflow用户
回答已采纳
发布于 2018-02-10 15:28:20
您在getItemCount()方法中返回0。
@Override
public int getItemCount() {
return 0;
}它应该是：
@Override
public int getItemCount() {
return masrList.size();
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/48721626
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