我在这个应用里面用了三个片段作为导航菜单。我想把回收者视图放在**故事片段里面。**但是我没有安装回收者视图。我在下面分享代码。你会给予相关的解决方案。

主页活动类.Java

软件包com. quotecollector;
导入androidx。注解。非空;
导入Android操作系统。
导入androidx.appcompat.app.AppCompatActivity;
导入androidx.appcompat.widget工具栏;
导入androidx.内核.视图.重力兼容;
导入安卓系统.
导入androidx.fragment.app片段;
导入Android片段管理器;
导入Android片段应用程序片段事务;
导入androidx.回收机视图.小部件.回收机视图;
导入android.os.捆绑包;
导入android.视图.菜单项;
导入谷歌安卓材料导航视图;
导入com. quotecollector. fragment.fragmentAbout;
导入com. quotecollector. fragment.fragmentStories;
导入com. quotecollector. fragment.FragmentSettings;
公共类HomeActivity扩展了AppCompatActivity {

DrawerLayout drawerLayout;

NavigationView navigationView;

Toolbar toolbar;

RecyclerView recyclerView;

@Override

protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_home);

    // Now we will find the toolbar here//

    drawerLayout = findViewById(R.id.drawerLayout);

    navigationView = findViewById(R.id.navView);

    toolbar = findViewById(R.id.toolBar);

    recyclerView = findViewById(R.id.recyclerviewStories);

    //Now we will set the toolBar//

    setSupportActionBar(toolbar);

    getSupportActionBar().setTitle("Quotes Collectors");

    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    //Now we set here the String arrays//

    ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawerLayout,

工具栏，R.字符串.打开抽屉，R.字符串.关闭抽屉）;

drawerLayout.addDrawerListener(toggle);

    toggle.syncState();

    //Here we implement one method//

    navigationView.setNavigationItemSelectedListener(new

导航视图.OnNavigationItemSelectedListener（）{

@Override

        public boolean onNavigationItemSelected(@NonNull MenuItem item) {

            int id = item.getItemId();

            if (id == R.id.About) {

                loadFragment(new FragmentAbout());

            } else if (id == R.id.Stories) {
                loadFragment(new FragmentStories());
            } else {
                loadFragment(new FragmentSettings());
            }
            drawerLayout.closeDrawer(GravityCompat.START);
            return true;
        }
    });

}

@Override
public void onBackPressed() {
    if (drawerLayout.isDrawerOpen(GravityCompat.START)) {
        drawerLayout.closeDrawer(GravityCompat.START);
    } else {
        super.onBackPressed();
    }
    super.onBackPressed();
}

private void loadFragment(Fragment fragment) {

    FragmentManager fragmentManager = getSupportFragmentManager();
    FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
    fragmentTransaction.add(R.id.Content, fragment);
    fragmentTransaction.commit();
}

}
这是片段存储类.java

package com.quotescollector.Fragments;

import android.os.Bundle;

import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.quotescollector.Models.StoriesModel;
import com.quotescollector.R;

import java.util.ArrayList;

public class FragmentStories extends Fragment {
    RecyclerView.Adapter adapter;
    RecyclerView recyclerView;
    ArrayList<StoriesModel> storiesModelList;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View view = inflater.inflate(R.layout.fragment_stories, container, false);
        storiesModelList = new ArrayList<>();
        recyclerView = view.findViewById(R.id.recyclerviewStories);
        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
        recyclerView.setAdapter(adapter);
        displayStories();
        return view;
    }
    private void displayStories() {
        storiesModelList.add(new StoriesModel(R.drawable.stories, "Stories"));
        storiesModelList.add(new StoriesModel(R.drawable.asia, "asia"));
        storiesModelList.add(new StoriesModel(R.drawable.stories, "Stories"));
        storiesModelList.add(new StoriesModel(R.drawable.asia, "asia"));
        storiesModelList.add(new StoriesModel(R.drawable.stories, "Stories"));
        storiesModelList.add(new StoriesModel(R.drawable.asia, "asia"));
    }
}

这是故事Adapterclass.java

package com.quotescollector.Adapters;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import com.quotescollector.Models.StoriesModel;
import com.quotescollector.R;

import java.lang.reflect.Array;
import java.util.ArrayList;

public class StroiesAdapter extends RecyclerView.Adapter<StroiesAdapter.viewHolder> {

    ArrayList<StoriesModel> storiesModelArrayList;
    Context context;

    //Here we need a constructor//

    public StroiesAdapter(ArrayList<StoriesModel> storiesModelArrayList, Context context) {
        this.storiesModelArrayList = storiesModelArrayList;
        this.context = context;
    }

    @NonNull
    @Override
    public viewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(context).inflate(R.layout.fragment_stories, parent, false);
        return new viewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull viewHolder holder, int position) {
        StoriesModel storiesModel = storiesModelArrayList.get(position);
        holder.image.setImageResource(storiesModel.getImage());
        holder.text.setText(storiesModel.getText());
    }

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

    public class viewHolder extends RecyclerView.ViewHolder {
        ImageView image;
        TextView text;

        public viewHolder(@NonNull View itemView) {
            super(itemView);

            image = itemView.findViewById(R.id.ImageFeather);
            text = itemView.findViewById(R.id.storiesHandler);
        }
    }
}

Stroies片段XML文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".Fragments.FragmentStories">

    <!-- TODO: Update blank fragment layout -->

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyclerviewStories"
        android:layout_width="match_parent"
        tools:listitem="@layout/stories_fragment_sample_layout"
        android:layout_height="match_parent"/>

</LinearLayout>

这是包含XML文件和Java类的故事片段数据。我无法修复它。请指导我如何在导航菜单中显示回收视图。