listview and round corner doesn't work

What I want: I'am using a Listview and I want to use this view with round corners.

Situation: A listview without round corners :-( .

I use different examples to define a customShape

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android">
    <corners
        and开发者_JS百科roid:radius="30dp"/>
    <stroke
        android:width="1dp"
        android:color="#000000" />
</shape>

If I apply this customShape to the listview items(Textview) every entry in Listview have round corners. It is crazy!!! So the customShape.xml works but not with the border of the listview.

Any idea???

regard marcel

Get view by id for the list view. ListView.setBackgroundResource(R.drawable.custom_shape);

Remove the background settings in the xml . Put the custom_shape.xml in drawable folder. Remove the stroke component from it as it is not needed to round the corners