protected int getRowWidth(int columnSpan) {
final int rowWidth = listView.getColumnWidth() * columnSpan;
// when the item spans multiple columns, we need to account for the horizontal padding
// and add that to the total final width
return Math.min(
rowWidth + ((columnSpan - 1) * listView.getRequestedHorizontalSpacing()),
Utils.getScreenWidth(getContext()));
}
public AsymmetricGridView(final Context context, final AttributeSet attrs) {
super(context, attrs);
defaultPadding = Utils.dpToPx(context, 5);
requestedHorizontalSpacing = defaultPadding;
requestedVerticalSpacing = defaultPadding;
padding = new Rect(defaultPadding, defaultPadding, defaultPadding, defaultPadding);
final ViewTreeObserver vto = getViewTreeObserver();
if (vto != null)
vto.addOnPreDrawListener(
new ViewTreeObserver.OnPreDrawListener() {
@Override
public boolean onPreDraw() {
getViewTreeObserver().removeOnPreDrawListener(this);
determineColumns();
if (gridAdapter != null) gridAdapter.notifyDataSetChanged();
return false;
}
});
}