android中的自定义群组项目recyclerview

public class Group {
    private String groupName;
    private List<String> members;

    // 构造函数、getter和setter方法
}

public class GroupAdapter extends RecyclerView.Adapter<GroupAdapter.ViewHolder> {
    private List<Group> groups;

    // 构造函数、ViewHolder类和必要的方法

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        Group group = groups.get(position);
        // 设置群组项目的数据和视图
    }

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

    // ViewHolder类和其他必要的方法
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <TextView
        android:id="@+id/group_name"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:textStyle="bold" />

    <RecyclerView
        android:id="@+id/members_list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

public class MainActivity extends AppCompatActivity {
    private RecyclerView recyclerView;
    private GroupAdapter adapter;
    private List<Group> groups;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        recyclerView = findViewById(R.id.recycler_view);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));

        groups = new ArrayList<>();
        // 初始化群组数据

        adapter = new GroupAdapter(groups);
        recyclerView.setAdapter(adapter);
    }
}