XML android:gravity value referenced as a variable?

is there any way to set android:gravity="..." value as a variable so I can change it depending on the configuration?

something like

android:gravity="@string/gravityValue"

/values

<string name="gravityValue">left</string>

/values-land

<string name="gravityValue">right</string>

but that doesnt work as gravity values are flags

thanks!