Question

带有RecyclerView的

Fragment无效，其显示错误和应用程序在运行时崩溃。

public class FragmentList extends Fragment {
  String [] names={"Nitin","Manish","Ankit","Hardik","Mayur","Mayank"};

  RecyclerView mRecyclerView;
  Context context;
  RecyclerAdapter mAdapter;

  @Nullable
  @Override
  public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View v=inflater.inflate(R.layout.fragment_list,container,false);

    setupRecyclerView();
    return v;
  }

  private void setupRecyclerView() {
    mRecyclerView= (RecyclerView)getView().findViewById(R.id.recycler_nit);
    LinearLayoutManager mLayout= new LinearLayoutManager(context);
    mLayout.setOrientation(LinearLayoutManager.VERTICAL);

    mAdapter= new RecyclerAdapter(context,names);
    mRecyclerView.setAdapter(mAdapter);
  }

在运行时显示错误，应用程序在启动前崩溃，

这是RecyclerView的适配器类：

Context context;
String[] names;

public RecyclerAdapter(Context context, String[] names) {
  this.context = context;
  this.names = names;
}

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

  RecyclerView.ViewHolder vh;
  View v= LayoutInflater.from(parent.getContext()).inflate(R.layout.raw_list,parent,false);

  vh=new ViewHolder(v);

  return (ViewHolder) vh;
}

@Override
public void onBindViewHolder(ViewHolder holder, int position) {
  holder.txt.setText(names[position]);
}

@Override
public int getItemCount() {
  return 0;
}

public class ViewHolder extends RecyclerView.ViewHolder {
  TextView txt;
  public ViewHolder(View itemView) {
    super(itemView);

    txt= (TextView) itemView.findViewById(R.id.name_listtext);

  }
}

显示：

致命的例外：主要                                                                             处理：com.example.hp.newfragment，PID：3354

java.lang.RuntimeException：无法启动活动   ComponentInfo {com.example.hp.newfragment / com.example.hp.newfragment.MainActivity}：   android.view.InflateException：二进制XML文件行＃17：错误   膨胀类片段

提前感谢您的帮助......

Answer 1

你必须设置布局管理器

喜欢这个

private void setupRecyclerView() {
mRecyclerView= (RecyclerView)getView().findViewById(R.id.recycler_nit);
LinearLayoutManager mLayout= new LinearLayoutManager(context);
mRecyclerView.setLayoutManager(mLayout);// here u have to add 
mLayout.setOrientation(LinearLayoutManager.VERTICAL);

RecyclerView与碎片不工作！显示错误

1 个答案: