Ad in preference activity "Not enough space to show ad! Wants: <480, 75>, Has: <432, 1073741823>"
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I'm trying to show an ad in the preference activity but it never appears. Logcat always shows the message "Not enough space to show ad! Wants: <480, 75>, Has: <432, 1073741823>"

This is how I create the ad. I have a custom preference with the ad

    public class AdmobPreference extends Preference {

    public AdmobPreference(Context context, AttributeSet attrs, int defStyle) {super    (context, attrs, defStyle);}
    public AdmobPreference(Context context, AttributeSet attrs) {super(context, attrs);}
    public AdmobPreference(Context context) {super(context);}

    @Override
    protected View onCreateView(ViewGroup parent) {
        // this will create the linear layout defined in ads_layout.xml
        View view = super.onCreateView(parent);

        // the context is a PreferenceActivity
        Activity activity = (Activity)getContext();

        // Create the adView
        AdView adView = new AdView(activity, AdSize.BANNER, "MY KEY");

        ((LinearLayout)view).addView(adView);

        // Initiate a generic request to load it with an ad
        AdRequest request = new AdRequest();
        adView.loadAd(request);     

        return view;    
    }
    }

Then I have a layout the ad is put into

    <?xml version="1.0" encoding="utf-8"?>

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
       xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
       android:orientation="vertical"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content">
		
    </LinearLayout>

And it is put into the the preferences xml with this line:

    <com.my.package.name android:layout="@layout/admob_preference" />

I can change it so the layout is set to width=480dip height=75dip instead of wrap_content. This does display the ad but it is pushed to the right of the screen and takes up a little less than half the size it's meant to (and cuts off half the ad).