how can i make the View do NOT expand over its sibling View

I have a layout similiar to this:

<Relative开发者_如何学编程Layout ...>
     <EditText android:id="@+id/editbox" 
            android:layout_width="wrap_content" .../>
     <Button android:layout_right="@id/editbox" 
            android:layout_width="wrap_content"
            android:text="Button" />
 </RelativeLayout>

The button is at the right of the edit text. And the edit text is 'wrap_content'. When i type texts into the edit view, the view's width increase and will expand to my button. I want the two views (button and edit text) have their own area. How to configure this?

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Hi Keyin Lynx: Use minWidth and maxWidth attribute,For Instance:

android:minWidth="10dip", android:maxWidth="60dip", attributes.

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Instead of using android:layout_right="@id/editbox use this android:layout_alignParentRight="true" so that the Button will be always placed at right side of the EditText