android - make the picture next to each other gridView -

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im using grid view , picture seems have spaces between each other. should make picture next each other?

<gridview               android:id="@+id/gridview"             android:layout_width="30px"              android:layout_height="fill_parent"             android:columnwidth="0dp"             android:numcolumns="3"             android:verticalspacing="0dp"             android:horizontalspacing="0dp"             android:stretchmode="columnwidth"             android:gravity=""             />


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