在RecyclerView初始化中设置

recyclerView.setLayoutManager(new GridLayoutManager(this, 4));

在RecyclerView初始化中设置

recyclerView.setLayoutManager(new GridLayoutManager(this, 4));

    There are 2 ways to achieve this 
    
    - In Xml
     <androidx.recyclerview.widget.RecyclerView
                            android:id="@+id/list_amenities"
                            android:layout_width="0dp"
                            android:layout_height="wrap_content"
                            android:layout_marginTop="@dimen/_8sdp"
                            android:nestedScrollingEnabled="false"                 
 app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
                            app:spanCount="2"
app:layout_constraintEnd_toEndOf="@+id/text_parking_lot_amenities"                       app:layout_constraintStart_toStartOf="@+id/text_parking_lot_amenities"                  app:layout_constraintTop_toBottomOf="@id/text_parking_lot_amenities" />

跨度计数用于网格列 -在活动中

 listAmenities.layoutManager = GridLayoutManager(this, TWO)
 here TWO indicates number of grid columns

这是一种仅使用XML的简单方法

spanCount表示列数

layoutManager使它成为网格或线性(垂直或水平)

<androidx.recyclerview.widget.RecyclerView
        android:id="@+id/personListRecyclerView"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
        app:spanCount="2"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

你应该将你的RecyclerView LayoutManager设置为Gridlayout模式。当你想要设置你的RecyclerView LayoutManager时，只需更改你的代码:

recyclerView.setLayoutManager(new GridLayoutManager(getActivity(), numberOfColumns));

如果你想在reyclerview的XML文件中设置网格布局，那么你可以把这两个放在recyclerview XML中。

app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
app:spanCount=numberOfItemsInSignleRow

如果你想从Java代码中设置网格布局，你可以这样写。

recyclerView.setLayoutManager(new GridLayoutManager(getActivity(), numberOfItemsInSignleRow));