WDScrollableSegmentedControl *segmentedControl = [[WDScrollableSegmentedControl alloc] initWithFrame:frame];

// space between buttons
segmentedControl.padding = 10.;

// space before first button and after last button
segmentedControl.edgeMargin = 0.;

// indicator height
segmentedControl.indicatorHeight = 3.;

// indicator animation duration
segmentedControl.indicatorMoveDuration = 0.25;

// font
segmentedControl.font = [UIFont systemFontOfSize:16.];

// colors
segmentedControl.indicatorColor = [UIColor blackColor];
segmentedControl.buttonColor = [UIColor blackColor];
segmentedControl.buttonHighlightColor = [UIColor grayColor];
segmentedControl.buttonSelectedColor = [UIColor blueColor];

// use this method if you want to change colors dynamically
[segmentedControl setButtonColor:[UIColor greenColor] forState:UIControlStateNormal];

scrollSegment.buttons = @[@"Foo", @"Button 1", @"Button 2", @"Another Button", @"Bar", @"Button Again", @"Finally"];
scrollSegment.delegate = self;

// this is what your delegate should implement
- (void)didSelectButtonAtIndex:(NSInteger)index;

self.automaticallyAdjustsScrollViewInsets = NO;