<View>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <View
        android:layout_width="match_parent"
        android:layout_height="20dp"
        android:background="#FFBBBB"
        android:layout_marginTop="30dp" />

    <View
        android:layout_width="match_parent"
        android:layout_height="10dp"
        android:background="#BBFFBB"
        android:layout_marginTop="30dp" />

    <View
        android:layout_width="match_parent"
        android:layout_height="10dp"
        android:background="#BBFFFF"
        android:layout_marginTop="30dp" />

    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="#000000"
        android:layout_marginTop="30dp" />

</LinearLayout>

실행 결과