We can cover the entire map in Android with this code:
<com.google.android.gms.maps.MapView xmlns:map="http://schemas.android.com/apk/res-auto" android:name="com.google.android.gms.maps.SupportMapFragment" android:layout_width="match_parent" android:layout_height="wrap_content" map:cameraZoom="1" //or 0 map:liteMode="true" />
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