UIButton setTitle Colour Changing not working - objective-c

Question

I have created scroll view programmatically and created N number of buttons using for loop, but now I need to change setTitle color accordingly the button selected or unselected
_scrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(40,50,self.view.frame.size.width,40)];
_scrollView.backgroundColor = [UIColor whiteColor];
_scrollView.showsHorizontalScrollIndicator = NO;
for (int i = 0; i<_pagesNameArray.count; i++) {
self.button = [[UIButton alloc]init];
self.button.frame = CGRectMake(i*150, 0, 150, 40);
self.button.tag = i;
self.button.backgroundColor = [UIColor clearColor];
[self.button addTarget:self action:#selector(tapSegmentButtonAction:) forControlEvents:UIControlEventTouchUpInside];
[self.button setTitle:[_pagesNameArray objectAtIndex:i] forState:UIControlStateNormal];
[self.button setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
[self.button setTitleColor:[UIColor blackColor] forState:UIControlStateSelected];
[_scrollView addSubview:self.button];
}
[self setupSelector];
CGRect contentRect = CGRectZero;
for (UIView *view in _scrollView.subviews) {
contentRect = CGRectUnion(contentRect, view.frame);
}
_scrollView.contentSize = contentRect.size;
[self.view addSubview:_scrollView];
I also tried this method but, it's not working. Can anyone help me out?
[self.button setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
[self.button setTitleColor:[UIColor blackColor] forState:UIControlStateSelected];

Answer 1

-(void)tapSegmentButtonAction:(UIbutton *)sender
{
UIbutton *button=sender.tag;
[self.button setTitleColor:[UIColor blackColor]
forState:UIControlStateSelected];
}

Answer 2

I have created 3 different type of buttons and given tag to each button
self.button = [[UIButton alloc]init];
self.button.frame = CGRectMake(0, 0, 180, 30);
self.button.tag = 0;
self.button.backgroundColor = [UIColor clearColor];
[self.button addTarget:self action:#selector(tapSegmentButtonAction:) forControlEvents:UIControlEventTouchUpInside];
[self.button setTitle:#"LOCAL REPORTS" forState:UIControlStateNormal];
// [self.button setTitleColor:[UIColor colorWithRed:0.04f green:0.14f blue:0.19f alpha:1] forState:UIControlStateNormal];
self.button.titleLabel.font = [UIFont fontWithName:#"Oswald-Regular" size:20.0f];
[_scrollView addSubview:self.button];
self.buttonNews = [[UIButton alloc]init];
self.buttonNews.frame = CGRectMake(135, 0, 180, 30);
self.buttonNews.tag = 1;
self.buttonNews.backgroundColor = [UIColor clearColor];
[self.buttonNews addTarget:self action:#selector(tapSegmentButtonAction:) forControlEvents:UIControlEventTouchUpInside];
[self.buttonNews setTitle:#"NEWS" forState:UIControlStateNormal];
//[self.buttonNews setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
self.buttonNews.titleLabel.font = [UIFont fontWithName:#"Oswald-Regular" size:20.0f];
self.buttonNews.titleLabel.font = [UIFont fontWithName:#"Oswald-Regular" size:20.0f];
[_scrollView addSubview:self.buttonNews];
self.buttonTop = [[UIButton alloc]init];
self.buttonTop.frame = CGRectMake(135*2, 0, 180, 30);
self.buttonTop.tag = 2;
self.buttonTop.backgroundColor = [UIColor clearColor];
[self.buttonTop addTarget:self action:#selector(tapSegmentButtonAction:) forControlEvents:UIControlEventTouchUpInside];
[self.buttonTop setTitle:#"TOP PHOTOS" forState:UIControlStateNormal];
//[self.buttonTop setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
self.buttonTop.titleLabel.font = [UIFont fontWithName:#"Oswald-Regular" size:20.0f];
self.buttonTop.titleLabel.font = [UIFont fontWithName:#"Oswald-Regular" size:20.0f];
[_scrollView addSubview:self.buttonTop];
[self animateButton];
-(void) animateButton
{
[self.button setTitleColor:[UIColor colorWithRed:0.04f green:0.14f blue:0.19f alpha:1] forState:UIControlStateNormal];
[self.buttonNews setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
[self.buttonTop setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
if (self.currentIndex == 0) {
[self.button setTitleColor:[UIColor colorWithRed:0.04f green:0.14f blue:0.19f alpha:1] forState:UIControlStateNormal];
[self.buttonNews setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
[self.buttonTop setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
}
if (self.currentIndex == 1) {
[self.button setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
[self.buttonNews setTitleColor:[UIColor colorWithRed:0.04f green:0.14f blue:0.19f alpha:1] forState:UIControlStateNormal];
[self.buttonTop setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
}
if (self.currentIndex == 2) {
[self.button setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
[self.buttonNews setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
[self.buttonTop setTitleColor:[UIColor colorWithRed:0.04f green:0.14f blue:0.19f alpha:1] forState:UIControlStateNormal];
}
}