RecyclerView项不可见

Question

RecyclerView项目不可见 我正在使用字符串数组名称项test并将其传递给String数组列表，我之前使用过相同的想法并且可以正常工作

    listItemsTest = new ArrayList<>(Arrays.asList(itemsTest));
    recyclerView = findViewById(R.id.RecycleViewTest);
    recycleViewAdapterTest = new RecycleViewAdapterTest(this,listItemsTest);
    recyclerView.setAdapter(recycleViewAdapterTest);
    recyclerView.setLayoutManager(new LinearLayoutManager(this));

---

我的适配器

public class RecycleViewAdapterTest extends 
RecyclerView.Adapter<RecycleViewAdapterTest.MyViewHolder> {

private ArrayList<String> ListTest;
Context context;

public RecycleViewAdapterTest(Context context, ArrayList<String> listTest) {

    this.ListTest = listTest;
    this.context = context;
}

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

    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.test_list,parent,false);
    MyViewHolder holder = new MyViewHolder(view);

    return holder;
}

@Override
public void onBindViewHolder(@NonNull RecycleViewAdapterTest.MyViewHolder holder, int position) {

}

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

public static class MyViewHolder extends RecyclerView.ViewHolder {

    LinearLayout linearLayout;
    TextView textView;

    public MyViewHolder(@NonNull View itemView) {
        super(itemView);
        linearLayout = itemView.findViewById(R.id.LLTest);
        textView = itemView.findViewById(R.id.textViewTest);

    }
}

Answer 1

因为您需要在 OnBindViewHolder 中将列表值设置为查看者的文本视图。 ：（

Answer 2

@Override
public void onBindViewHolder(@NonNull RecycleViewAdapterTest.MyViewHolder holder, int position) {
    String value = this.ListTest.get(position);
    holder.textView.setText(value);// Try to make the textView public
}