i am implementing admob on my app it appears when the parent is in relative layout but i must not use the alignparentbottom so i am changing it to linear but it doesnt show when i change it to linear..

any tips? help? thanks in advance

here it is in xml:

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

    <RelativeLayout
        android:id="@+id/banner_holder"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <ImageView
            android:id="@+id/offline_banner"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:background="@color/black"
            android:src="@drawable/offline_banner" />

        <com.google.ads.AdView
            xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
            android:id="@+id/adView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            ads:adSize="SMART_BANNER"
            ads:adUnitId="@string/unit_id"
            ads:loadAdOnCreate="true" />
    </RelativeLayout>
 <FrameLayout
        android:id="@+id/fragmentContainer"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
</LinearLayout>

i want the admob to be at the bottom part of the screen without using the alignparentbottom of relative layout

thanks~