multicheck_list.xml

<android.support.percent.PercentRelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical">

    <TextView
        android:id="@+id/text1"
        app:layout_widthPercent="90%"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
         />

    <CheckBox
        android:id="@+id/checkBox"
        app:layout_widthPercent="10%"
        android:layout_height="wrap_content"
        android:layout_toEndOf="@id/text1" />
</android.support.percent.PercentRelativeLayout>