Change action button layout for split action bars

        final int childCount = getChildCount();

        final int midVertical = (top + bottom) / 2;

        final int dividerWidth = getDividerWidth();

        boolean hasOverflow = false;

        int overflowWidth = 0;

        int nonOverflowWidth = 0;

        int nonOverflowCount = 0;

            LayoutParams p = (LayoutParams) v.getLayoutParams();

            if (p.isOverflowButton) {

                hasOverflow = true;

                overflowWidth = v.getMeasuredWidth();

                if (hasDividerBeforeChildAt(i)) {

                    overflowWidth += dividerWidth;

            }

        }

        // Try to center non-overflow items with uniformly spaced padding, including on the edges.

        // Overflow will always pin to the right edge. If there isn't enough room for that,

        // center in the remaining space.

        // Fill action items from the left. Overflow will always pin to the right edge.

        if (nonOverflowWidth <= widthRemaining - overflowWidth) {

            widthRemaining -= overflowWidth;

        }

        final int spacing = (widthRemaining - nonOverflowWidth) / (nonOverflowCount + 1);

        int startLeft = getPaddingLeft() + overflowWidth + spacing;

        int startLeft = getPaddingLeft();

        for (int i = 0; i < childCount; i++) {

            final View v = getChildAt(i);

            final LayoutParams lp = (LayoutParams) v.getLayoutParams();

            int height = v.getMeasuredHeight();

            int t = midVertical - (height / 2);

            v.layout(startLeft, t, startLeft + width, t + height);

            startLeft += width + lp.rightMargin + spacing;

            startLeft += width + lp.rightMargin;

        }

    }