How to correct set rounded corners in Android for Relative or else layout?

Android is killing me.

I want set rounded corners for Relative layout, it's simple

Drawable XML may look like

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >
 <padding android:left="1dp" android:top="1dp"
            android:right="2dp" android:bottom="2dp" />
    <solid android:color="#FFFFFF" />

    <corners android:radius="15dp" />

    <stroke
        android:width="2dp"
        android:color="#FFF" />

</shape>

But, if I insert into Relative layout other layout or else widget like ImageView I got not clipped childs - see picture

How you can see I got not clipped child element.

How do I do this right?

Maybe it helps I want rounded corners works like in iOS

givenView.layer.cornerRadius =roundAngle;
    [givenView.layer setBorderColor:[[borderColor colorWithAlphaComponent:alphaBorder] CGColor]];
    [givenView.layer setBorderWidth:borderWidth];
    givenView.clipsToBounds = YES;

Also I want show every one who think that padding it's solution:

Here set padding.

For correctly understating problem look at hierarchy picture

In here:

RelativeLayout - have described xml as background,

LinearLa