Question

public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment


        View view = inflater.inflate(R.layout.fragment_tab1, container, false);

        recyclerView =  view.findViewById(R.id.recyler);
        adapter = new tabAdapter(getActivity(),getdata());
        recyclerView.setAdapter(adapter);
        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));

        return view;
    }

    public List<information> getdata(){

        List<information> data = new ArrayList<>();
        int[] im = {R.mipmap.ic_launcher,R.mipmap.ic_launcher_round,R.mipmap.ic_launcher_round,R.mipmap.ic_launcher};
        String[] ti ={"shubham","prasad","xxxxx","dummydata"};
        for(int i=0;i<ti.length && i<im.length;i++){
            information info = new information();
            info.img=im[i];
            info.str=ti[i];
            data.add(info);

        }
        return data;
    }

并获得例外致命异议：主要处理：com.example.android.abc，PID：3385 java.lang.ArrayIndexOutOfBoundsException：length = 4;索引= 4 在com.example.android.abc.tab1.getdata（tab1.java:104）在com.example.android.abc.tab1.onCreateView（tab1.java:88）

tabAdapter类 public class tabAdapter扩展了RecyclerView.Adapter {

private LayoutInflater lf;


List<information> data = Collections.emptyList();

public tabAdapter（Context context，List data）{

   lf=LayoutInflater.from(context);
   this.data=data;

}

@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

    View view = lf.inflate(R.layout.res,parent,false);

    MyViewHolder ms = new MyViewHolder(view);
    return ms;
}

@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
    information info=data.get(position);

    holder.tx.setText(info.str);
    holder.tm.setImageResource(info.img);


}

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


class MyViewHolder extends RecyclerView.ViewHolder {

    TextView tx;
    ImageView tm;
    public MyViewHolder(View itemView) {
        super(itemView);
        tx = itemView.findViewById(R.id.ids);
        tm = itemView.findViewById(R.id.imag);
    }
}

}

Answer 1

你必须这样做

for(int i=0;i<ti.length;i++){

    information info = new information();
    info.setImage(im[i]);
    info.setString(ti[i]);
    data.add(info);

    }

更新了答案。

在您bindview adapter的{{1}}中，您需要写下面的内容

@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
    information info=data.get(position);

    holder.tx.setText(info.getString());
    holder.tm.setImageResource(info.getImage());
}

您的信息类如下

public class information implements Serializable {
    private  int img;
    private String str;

    public int getImg() {
        return img;
    }

    public void setImg(int img) {
        this.img = img;
    }

    public String getStr() {
        return str;
    }

    public void setStr(String str) {
        this.str = str;
    }
}

数组超出了不适当的输出

1 个答案: