android中listview紧接着Button按钮，发现最后一条item没有下横线？？

说明：像这种Listview后面还有控件的，整体布局最好用FrameLayout，如果用LinearLayout的话，如果Listview的height用android:layout_height="match_parent"，后面的控件布局不上来；如果Listview的height用android:layout_height="wrap_content"，最后一条item会没有下横线。

1.布局效果图

2.布局对应的代码

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

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

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="180dp"
            android:background="@color/activity_my_controller_user_background"
            android:paddingBottom="20dp" >

            <ImageView
                android:id="@+id/activity_my_controller_user_imageview"
                style="@style/HotelModeSelect_001"
                android:layout_alignParentTop="true"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="43dp"
                android:src="@drawable/user1" />

            <TextView
                android:id="@+id/activity_my_controller_user_phone_number"
                style="@style/HotelModeSelect_001"
                android:layout_alignParentBottom="true"
                android:layout_centerHorizontal="true"
                android:text="@string/activity_my_controller_user_phone"
                android:textColor="@color/activity_my_controller_user_phone_color" />
        </RelativeLayout>

        <ListView
            android:id="@+id/activity_my_controller_listview"
            android:layout_width="match_parent"
            android:layout_height="match_parent" >
        </ListView>
    </LinearLayout>

    <Button
        android:id="@+id/activity_my_controller_exit_system_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom"
        android:layout_marginBottom="80dp"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:background="@drawable/btn_bg"
        android:padding="8dp"
        android:text="@string/activity_my_controller_exit_system_text"
        android:textColor="@color/activity_my_controller_exit_system_text_color"
        android:visibility="visible" />

</FrameLayout>