Scale layout on muiti device

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http://stackoverflow.com – I has created a game, but all device game's size not change, I want at all device, it will scale. This is my code, I used LinearLayout and TableRow to create : <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#FFFFFF" android:orientation="horizontal" > <TableRow android:layout_width="fill_parent" android:layout_height="wrap_content" > <Button android:id="@+id/btnN (HowTos)