Android 水平 RecyclerView 滚动方向

Question

我制作了一个 Horizontal RecyclerView 并且它工作正常（感谢 this）但是滚动方向和数据从左到右展开；那么如何改变 RecyclerView 的滚动方向，如下图所示？

我的代码：

StaggeredGridLayoutManager staggeredGridLayoutManager =
                new StaggeredGridLayoutManager(
                        2, //The number of Columns in the grid
                        LinearLayoutManager.HORIZONTAL);

Answer 1

假设您在 RecyclerView 中使用 LinearLayoutManager，那么您可以将 true 作为第三个参数传递给 LinearLayoutManager 构造函数。

例如：

mRecyclerView.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, true));

如果您正在使用StaggeredGridLayoutManager，那么您可以使用它提供的setReverseLayout方法。

Answer 2

您只需 xml 即可完成。

app:reverseLayout="true" 完成任务！

<android.support.v7.widget.RecyclerView
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:divider="@null"
  android:orientation="horizontal"
  app:reverseLayout="true" />

Answer 3

带图像视图和文本视图的水平 RecyclerView

xml 文件

main.xml

<LinearLayout
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:layout_marginTop="5dp"
   android:orientation="vertical"
   android:background="#070e94">
<View
    android:background="#787878"
    android:layout_width="match_parent"
    android:layout_height="1dp"
    />
<android.support.v7.widget.RecyclerView
    android:id="@+id/wallet"
    android:background="#070e94"
    android:layout_width="match_parent"
    android:layout_height="100dp"/>

item.xml

<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="100dp"
android:layout_height="match_parent"
android:layout_marginTop="5dp">
<ImageView
    android:id="@+id/image"
    android:layout_width="50dp"
    android:layout_height="50dp"
    android:scaleType="fitXY"
    android:src="@drawable/bus"
    android:layout_gravity="center"/>
<TextView
    android:textColor="#000"
    android:textSize="12sp"
    android:layout_gravity="center"
    android:padding="5dp"
    android:id="@+id/txtView"
    android:textAlignment="center"
    android:hint="Electronics"
    android:layout_width="80dp"
    android:layout_height="wrap_content" />

Java Class

ActivityMaim.java

public class MainActivity extends AppCompatActivity{
private  RecyclerView  horizontal_recycler_view;
private ArrayList<Arraylist> horizontalList;
private CustomAdapter horizontalAdapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    horizontal_recycler_view= (RecyclerView) findViewById(R.id.horizontal_recycler_view);
    horizontalList = new ArrayList<Arraylist>();
    for (int i = 0; i < MyData.nameArray.length; i++) {
        horizontalList.add(new Arraylist(
                MyData.nameArray[i],
                MyData.drawableArray[i]
        ));
    }
    horizontalAdapter=new CustomAdapter(horizontalList);
    LinearLayoutManager horizontalLayoutManagaer
            = new LinearLayoutManager(MainActivity.this, LinearLayoutManager.HORIZONTAL, false);
    horizontal_recycler_view.setLayoutManager(horizontalLayoutManagaer);
    horizontal_recycler_view.setAdapter(horizontalAdapter);
}}

阿达珀 Class

CustomAdapter.java

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

private ArrayList<Arraylist> dataSet;

public static class MyViewHolder extends RecyclerView.ViewHolder {

    TextView textViewName;

    ImageView imageViewIcon;

    public MyViewHolder(View itemView) {
        super(itemView);
        this.textViewName = (TextView) itemView.findViewById(R.id.txtView);
        //this.textViewVersion = (TextView) itemView.findViewById(R.id.textViewVersion);
        this.imageViewIcon = (ImageView) itemView.findViewById(R.id.image);
        itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v)
            {
                if (getPosition()==0)
                {
                    Toast.makeText(v.getContext(), " On CLick one", Toast.LENGTH_SHORT).show();

                } if (getPosition()==1)
                {
                    Toast.makeText(v.getContext(), " On CLick Two", Toast.LENGTH_SHORT).show();

                } if (getPosition()==2)
                {
                    Toast.makeText(v.getContext(), " On CLick Three", Toast.LENGTH_SHORT).show();

                } if (getPosition()==3)
                {
                    Toast.makeText(v.getContext(), " On CLick Fore", Toast.LENGTH_SHORT).show();

                }

            }
        });
    }
}

public CustomAdapter(ArrayList<Arraylist> data) {
    this.dataSet = data;
}

@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent,
                                       int viewType) {
    View view = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.card_view, parent, false);

    //view.setOnClickListener(MainActivity.myOnClickListener);

    MyViewHolder myViewHolder = new MyViewHolder(view);
    return myViewHolder;
}

@Override
public void onBindViewHolder(final MyViewHolder holder, final int listPosition) {

    TextView textViewName = holder.textViewName;
   // TextView textViewVersion = holder.textViewVersion;
    ImageView imageView = holder.imageViewIcon;

    textViewName.setText(dataSet.get(listPosition).getName());
    //textViewVersion.setText(dataSet.get(listPosition).getVersion());
    imageView.setImageResource(dataSet.get(listPosition).getImage());
}

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

Arraylist.java

public class Arraylist{
String name;
int image;

public Arraylist(String name, int image) {
    this.name = name;
    this.image=image;
}
public String getName() {
    return name;
}
public int getImage() {
    return image;
}}

MyData.java

public class MyData {
static String[] nameArray = {"Gas", "Insurance", "Electronics", "Other Services"};
static Integer[] drawableArray = {R.drawable.gas_gas, R.drawable.insurance, R.drawable.electric, R.drawable.services};}

Answer 4

试试这个

我已经尝试了以上所有答案，它向我展示了相同的垂直回收器视图，所以我尝试了另一个例子。

初始化适配器
```
private Adapter mAdapter;
```

像这样设置适配器

mAdapter = new Adapter();
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getActivity(), LinearLayoutManager.HORIZONTAL, false);
recycler_view.setLayoutManager(linearLayoutManager);
recycler_view.setAdapter(mAdapter);

希望这对你也有用 完整代码请参考thislink

Answer 5

在片段中试试这个：

layoutManager = new LinearLayoutManager(getActivity(),LinearLayoutManager.HORIZONTAL,false);

mRecyclerView.setLayoutManager(layoutManager);

Answer 6

只需添加两行代码即可将recyclerview 的方向设为水平。所以在 Initializing Recyclerview 时添加这些行。

  LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getActivity(), LinearLayoutManager.HORIZONTAL, false);

my_recycler.setLayoutManager(linearLayoutManager);

Answer 7

下面这段代码就够了

RecyclerView recyclerView;
LinearLayoutManager layoutManager = new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL,true);

 recyclerView.setLayoutManager(layoutManager);

Answer 8

这是关于波斯语的问题，只需要旋转您的 ListView、GridView 或 .... 然后旋转您的单元格。您可以在 xml android:rotate="360".

中完成

Answer 9

XML 使用 androidx 的方法：

<androidx.recyclerview.widget.RecyclerView
  android:layout_width="match_parent"
  android:id="@+id/my_recycler_view"
  android:orientation="horizontal"
  tools:listitem="@layout/my_item"
  app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" 
  android:layout_height="wrap_content">

Answer 10

在 Recycler 布局管理器中，第二个参数是 spanCount 跨度计数的增加或减少将改变屏幕上显示的元素数量

    RecyclerView.LayoutManager mLayoutManager = new GridLayoutManager(this, 2, //The number of Columns in the grid
,GridLayoutManager.HORIZONTAL,false);
                recyclerView.setLayoutManager(mLayoutManager);

Answer 11

要更改滑动方向，您可以使用

reverselayout 属性 = true。

在 Kotlin 中，

val layoutManager = LinearLayoutManager(this@MainActivity,LinearLayoutManager.HORIZONTAL,true)
recyclerview.layoutManager = layoutManager

在Java,

 LinearLayoutManager layoutManager = new LinearLayoutManager(this,LinearLayoutManager.HORIZONTAL,true);
 recyclerview.setLayoutManager(layoutManager);

实际上它颠倒了布局。

如果显示如下

1.2..3....10

它将更改为

10.9..8....1

创建 Horizontal RecyclerView 有很多方法。

4 Ways To Create Horizontal RecyclerView In Android

Answer 12

//in fragment page: 

 recyclerView.setLayoutManager(new LinearLayoutManager(this.getActivity(), HORIZONTAL,true));

//this worked for me but before that please import :

implementation 'com.android.support:recyclerview-v7:28.0.0'

Answer 13

For Horizontal Scroolview in RecyclerView in Kotlin: - We use this Code 
 recycler_upcoming.layoutManager =
            LinearLayoutManager(sContext, LinearLayoutManager.HORIZONTAL, false)
        recycler_upcoming.adapter =
            InboxUpcomingAdapter(this@InboxMessageFragment, arrayList, sContext)

-> sContext mean Ur Context
-> If you pass false then scroll right to left
-> If You pass true then scroll left to right

Answer 14

您的 XML 设计在这里 <androidx.recyclerview.widget.RecyclerView android:id="@+id/rvPopularPerson" android:layout_width="match_parent" android:layout_height="215dp"/>

记住首先修复所有 recyclerview 高度，如 100dp、200dp、300dp 等

Java代码在这里recyclerView= view.findViewById(R.id.rvPopularPerson); recyclerView.setHasFixedSize(true); recyclerView.setLayoutManager(new LinearLayoutManager(this.getActivity(), LinearLayoutManager.HORIZONTAL, false));

我想它会对你有所帮助。

Android 水平 RecyclerView 滚动方向

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试试这个