NSArray *segments = @[@"White", @"Black", @"Gold"];
THSegmentedControl *thControl = [[THSegmentedControl alloc] initWithSegments:segments];

// OR

NSArray *segments = @[@"White", @"Black", @"Gold"];
THSegmentedControl *thControl = [[THSegmentedControl alloc] init];

for (int i = 0; i < segments.count; i++) {
  [thControl insertSegmentWithTitle:segments[i] atIndex:i];
}

[thControl addTarget:self action:@selector(thControlChangedSegment:) forControlEvents:UIControlEventValueChanged | UIControlEventTouchUpInside];

- (void)thControlChangedSegment:(THSegmentedControl *)thSegmentedControl
{
    NSOrderedSet *orderedIndexes = thSegmentedControl.selectedIndexes;
    for (NSInteger selection in orderedIndexes) {
      NSLog("I'm a selected segment %@", [thSegmentedControl titleForSegmentAtIndex:index]);
    }
}