1<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
2    android:keyWidth="@dimen/keyboard_key_width"
3    android:keyHeight="@dimen/keyboard_key_height"
4    android:horizontalGap="@dimen/keyboard_key_horizontal_tiny_gap"
5    android:verticalGap="@dimen/keyboard_key_vertical_gap" />
6