我正在使用此代码.

<RelativeLayout 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:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".MainActivity">
 
 
        <Switch
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="New Switch"
            android:id="@+id/switch" android:layout_alignBottom="@+id/button3" android:layout_toRightOf="@+id/button3"
            android:layout_marginLeft="44dp"/>
 
 
</RelativeLayout>