无法在 Firebase ui 上使自定义的查看器工作

Question

我正在努力让这件事发挥作用！！！我正在使用 Firebase Ui，由于它已更改为 3.0，我不知道如何使其工作了。我有一个名为 UsersViewHolder 的自定义视图，它将所有必要的信息设置到我的视图中。但是，我不知道如何将视图与 Firebase Recycler Adapter 绑定。

我的 ViewHolder

package br.sosqueen.com.sosqueen;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

/**
 * Created by calvin on 15/04/2018.
 */

public class UsersViewHolder extends RecyclerView.ViewHolder {

    View mView;

    public UsersViewHolder(View itemView) {
        super(itemView);
        mView = itemView;
    }

    public void setDetails(Context ctx, String userName, String userStatus, String userImage){

        TextView user_name = (TextView) mView.findViewById(R.id.name_text);
        TextView user_status = (TextView) mView.findViewById(R.id.status_text);
        ImageView user_image = (ImageView) mView.findViewById(R.id.profile_image);

        user_name.setText(userName);
        user_status.setText(userStatus);
    }
}

我的班级负责链接它们

package br.sosqueen.com.sosqueen;


import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.Toast;

import com.firebase.ui.database.FirebaseRecyclerAdapter;
import com.firebase.ui.database.FirebaseRecyclerOptions;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.Query;


public class SearchFragment extends android.support.v4.app.Fragment {

    private EditText mSearchField;
    private ImageButton mSearchBtn;
    private RecyclerView mResultList;
    private DatabaseReference mUserDatabase;

    public static SearchFragment newInstance() { return new SearchFragment();  }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View view = inflater.inflate(R.layout.fragment_search, container, false);
        mSearchField = (EditText) view.findViewById(R.id.search_field);
        mSearchBtn = (ImageButton) view.findViewById(R.id.search_btn);

        mResultList = (RecyclerView) view.findViewById(R.id.result_list);
        mResultList.setHasFixedSize(true);
        mResultList.setLayoutManager(new LinearLayoutManager(mResultList.getContext()));

        mSearchBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String searchText = mSearchField.getText().toString();
                firebaseUserSearch(searchText);
            }
        });

        mUserDatabase = FirebaseDatabase.getInstance().getReference("users");
        return view;
    }

    public void firebaseUserSearch(String searchText) {
        Toast.makeText(getContext(), "Started Search", Toast.LENGTH_LONG).show();

//        Query firebaseSearchQuery = mUserDatabase.orderByChild("username").startAt(searchText).endAt(searchText + "\uf8ff");
        Query firebaseSearchQuery = mUserDatabase.getRef();
        FirebaseRecyclerOptions<UserDetails> options =
                new FirebaseRecyclerOptions.Builder<UserDetails>()
                        .setQuery(firebaseSearchQuery, UserDetails.class)
                        .build();

        Log.d("debugaoBuild", "chegou a buildar");

        FirebaseRecyclerAdapter<UserDetails, UsersViewHolder> firebaseRecyclerAdapter = new FirebaseRecyclerAdapter<UserDetails, UsersViewHolder>(options) {
            @Override
            public UsersViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
       //         UsersViewHolder v = null;
                v = //LayoutInflater.from(parent.getContext()).inflate(R.layout.list_layout, parent, false);
                return v;
            }

            @Override
            protected void onBindViewHolder(UsersViewHolder holder, int position, UserDetails model) {
                holder.setDetails(getContext(), UserDetails.username, UserDetails.status, "image");
            }
        };
        firebaseRecyclerAdapter.startListening();
        mResultList.setAdapter(firebaseRecyclerAdapter);
    }

}

R.layout.list_layout 是我为用户设置信息的布局。但我不知道在哪里链接它们。我用它和 onCreateViewHolder 做什么？？？求救，我有点绝望

Answer 1

在 onCreateViewHolder 中

  View itemView  = LayoutInflater.from(parent.getContext()).inflate(R.layout. list_layout,parent,false);
                return new UsersViewHolder(itemView);

你应该返回 viewholder 而不是 view(return v ... 在你的情况下) :)