1<GridView xmlns:android="http://schemas.android.com/apk/res/android" 2 android:id="@+id/app_grid" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" 5 android:columnWidth="80dp" 6 android:horizontalSpacing="8dp" 7 android:numColumns="auto_fit" 8 android:verticalSpacing="8dp" />