Android: Make view equal to parent width -20 dip?

Is there a way to set a layouts width to be the width of it's parent -20 dip? I'm dealing with a Tabl开发者_如何转开发erow

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Try giving TableRow

android:paddingRight="10dip" android:paddingLeft="10dip" 

which makes it look like its width is 20dpi less than that of parent.

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Set its left and right padding as needed.

<TableRow
   android:paddingLeft="10dp"
   android:paddingRight="10dp"
   ...
/>