In the layout file activity > main.xml, add two nested < LinearLayout > in the vertical linear layout manager < LinearLayout > added by default, then set the first < LinearLayout > arrangement as horizontal arrangement, add four horizontally side-by-side TextView components, set the text alignment of TextView components, and set the second < LinearLayout > The method is vertical arrangement, in which four vertically arranged TextView components are added.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.shenfan.linearlayout.MainActivity">

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:text="Red"
            android:gravity="center"
            android:background="#aa0000"
            android:layout_weight="1"
            />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:text="blue"
            android:gravity="top|center"
            android:background="#0000aa"
            android:layout_weight="1"
            />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:text="yellow"
            android:gravity="bottom|center"
            android:background="#aaaa00"
            android:layout_weight="1"
            />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:text="green"
            android:gravity="fill_vertical"
            android:background="#00aa00"
            android:layout_weight="1"
            />
    </LinearLayout>



    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight = "1"
        >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:text="first line"
            android:layout_weight="1"
            />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:text="Second elements"
            android:layout_weight="1"
            />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:text="Third elements"
            android:layout_weight="1"
            />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:text="Fourth elements"
            android:layout_weight="1"
            />
    </LinearLayout>
</LinearLayout>

The operation interface is as follows: