多个回收站视图？

Question

我想用 recyclerview 让我的主页有两行使用书籍数据和彼此独立显示的事件我该如何完成我想将事件添加到我的代码我该怎么做？

MoviesAdapter.java

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

private List<Movie> moviesList;
public Context context;

public class MyViewHolder extends RecyclerView.ViewHolder {
    public TextView title;
    public ImageView thumbnail;


    public MyViewHolder(View view) {
        super(view);
        title = (TextView) view.findViewById(R.id.title);
        thumbnail = (ImageView) view.findViewById(R.id.book);

    }
}//End of MyViewHolder class

public MoviesAdapter(List<Movie> moviesList) {
    this.moviesList = moviesList;
}

//display different items in the data set
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View itemView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.movie_list_row, parent, false);

    return new MyViewHolder(itemView);
}

//display data at specified location
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {

    holder.title.setText(moviesList.get(position).getTitle());

    holder.thumbnail.setImageResource(moviesList.get(position).getImage());
}

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

我想把我的页面做成这样

Answer 1

使用带有 3 个 RecyclerView 的 LinearLayout 并为每个 RecyclerView 创建一个 Adapter 应该没问题。嵌套的 RecyclerViews 只有在你有很多类别时才有意义。

Answer 2

我用三个recyclerview和他们的adapter做的class这里只有MainActivity.java和activity.xml

的代码

MainActivity.java

public class MainActivity extends AppCompatActivity {

    private List<Book> bookList = new ArrayList<>();
    private List<Author> authorList = new ArrayList<>();
    private List<Event> eventList = new ArrayList<>();

    private RecyclerView recyclerView1;
    private RecyclerView recyclerView2;
    private RecyclerView recyclerView3;

    private BookAdapter bAdapter;
    private AuthorAdapter aAdapter;
    private EventAdapter eAdapter;

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


        recyclerView1 =  findViewById(R.id.recycler_book);
        bAdapter = new BookAdapter(this,bookList);
        recyclerView1.setHasFixedSize(true);
         RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.HORIZONTAL, false);
        recyclerView1.setLayoutManager(mLayoutManager);
        recyclerView1.setAdapter(bAdapter);
        prepareBookData();

      //second recycler
        recyclerView2 =  findViewById(R.id.recycler_author);
        aAdapter = new AuthorAdapter(this,authorList);
        recyclerView2.setHasFixedSize(true);
        RecyclerView.LayoutManager aLayoutManager = new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.HORIZONTAL, false);
        recyclerView2.setLayoutManager(aLayoutManager);
        recyclerView2.setAdapter(aAdapter);
        prepareAuthorData();

        //third recycler
        recyclerView3 = (RecyclerView) findViewById(R.id.recycler_event);
        eAdapter = new EventAdapter(this,eventList);
        recyclerView3.setHasFixedSize(true);
        RecyclerView.LayoutManager eLayoutManager = new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.HORIZONTAL, false);
        //   RecyclerView.LayoutManager eLayoutManager = new GridLayoutManager(this,1,GridLayoutManager.HORIZONTAL,false);
        recyclerView3.setLayoutManager(eLayoutManager);
        recyclerView3.setAdapter(eAdapter);
        prepareEventData();
    }

    private void prepareBookData(){

        int[] drawableArray = {R.drawable.youcanwin, R.drawable.halfgirl};
        String[] nameArray = {"You Can Win", "Half Girlfriend"};
        Book a=new Book(nameArray[0],drawableArray[0]);
        bookList.add(a);

        Book b=new Book(nameArray[1],drawableArray[1]);
        bookList.add(b);

        Book c=new Book(nameArray[0],drawableArray[0]);
        bookList.add(c);

        bAdapter.notifyDataSetChanged();
    }

    private void prepareAuthorData(){

        int[] drawableArray = {R.drawable.youcanwin, R.drawable.halfgirl};
        String[] nameArray = {"You Can Win", "Half Girlfriend"};

        Author a=new Author(nameArray[0],drawableArray[0]);
        authorList.add(a);

        Author b=new Author(nameArray[1],drawableArray[1]);
        authorList.add(b);

        Author c=new Author(nameArray[0],drawableArray[0]);
        authorList.add(c);

        Author d=new Author(nameArray[1],drawableArray[1]);
        authorList.add(d);

        bAdapter.notifyDataSetChanged();
    }

    private void prepareEventData(){

        String[] desArray = {"new","old"};
        String[] nameArray = {"You Can Win", "Half Girlfriend"};

        Event a=new Event(nameArray[0],desArray[0]);
        eventList.add(a);

        Event b=new Event(nameArray[0],desArray[0]);
        eventList.add(b);

        Event c=new Event(nameArray[0],desArray[0]);
        eventList.add(c);

        bAdapter.notifyDataSetChanged();
    }
 }

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView
  xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
tools:context="com.example.hardik.threerecycler.MainActivity"
android:background="#e6edec">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <android.support.v7.widget.CardView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_marginTop="10dp"
        app:cardCornerRadius="4dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Books"
            android:textSize="20sp"
            android:textStyle="bold" />

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recycler_book"
            android:layout_width="match_parent"
            android:layout_height="150dp"
            android:layout_marginTop="20dp" />
    </android.support.v7.widget.CardView>
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Authors"
        android:textStyle="bold"
        android:textSize="20sp"
        android:layout_marginTop="10dp"/>

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_author"
        android:layout_width="match_parent"
        android:layout_height="150dp"
        android:layout_below="@+id/recycler_book"
        android:layout_marginTop="5dp"/>
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Events"
        android:textStyle="bold"
        android:textSize="20sp"
        android:layout_marginTop="10dp"/>

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_event"
        android:layout_width="match_parent"
        android:layout_height="150dp"
        android:layout_below="@+id/recycler_author"
        android:layout_marginTop="5dp"/>

</LinearLayout>

多个回收站视图？

multiple recyclerviews?

android

android-recyclerview

nestedrecyclerview