UIView not Showing in Main View Controller - ios

Question

Hi all I'm implementing in my main ViewController some UIView custom class .. All are shown but only the KPHomeInfluenceUser is not visible .. Definitely it is a stupid question or lack of attention but you can explain why you do not see it ?? What am I doing is a wrong way to implement UIView Custom Class? If my method is wrong you can describe the correct method? I've seen many programmers implement classes this way.... Excuse me for stupid question
- (void)viewDidLoad {
[super viewDidLoad];
[self scrollView];
}
-(void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
[self.calendar clearAllDataToHomeCalendarAndReloadData];
[self.calendar scrollHomeCalendarToCurrentDayAndMonth];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
-(UIScrollView *)scrollView {
if (!_scrollView) {
_scrollView = [[UIScrollView alloc] init];
_scrollView.backgroundColor = [UIColor clearColor];
_scrollView.translatesAutoresizingMaskIntoConstraints = NO;
[self.view addSubview:self.scrollView];
[self.scrollView.topAnchor constraintEqualToAnchor:self.view.safeAreaLayoutGuide.topAnchor].active = YES;
[self.scrollView.bottomAnchor constraintEqualToAnchor:self.view.safeAreaLayoutGuide.bottomAnchor].active = YES;
[self.scrollView.leftAnchor constraintEqualToAnchor:self.view.leftAnchor].active = YES;
[self.scrollView.rightAnchor constraintEqualToAnchor:self.view.rightAnchor].active = YES;
[self calendar];
[self influenceUser];
[self homeBottom];
}
return _scrollView;
}
-(KPHomeCalendar *)calendar {
if (!_calendar) {
_calendar = [[KPHomeCalendar alloc] init];
_calendar.translatesAutoresizingMaskIntoConstraints = NO;
[self.scrollView addSubview:self.calendar];
[self.calendar.topAnchor constraintEqualToAnchor:self.baseUserPhoto.topAnchor constant:-5].active = YES;
[self.calendar.leftAnchor constraintEqualToAnchor:self.baseUserPhoto.rightAnchor constant:10].active = YES;
[self.calendar.rightAnchor constraintEqualToAnchor:self.view.rightAnchor constant:-10].active = YES;
[self.calendar.heightAnchor constraintEqualToConstant:85].active = YES;
}
return _calendar;
}
-(KPHomeInfluenceUser *)influenceUser {
KPHomeInfluenceUser *influence = [[KPHomeInfluenceUser alloc] init];
influence.translatesAutoresizingMaskIntoConstraints = NO;
[self.scrollView addSubview:influence];
[influence.topAnchor constraintEqualToAnchor:self.calendar.bottomAnchor constant:0].active = YES;
[influence.leftAnchor constraintEqualToAnchor:self.scrollView.leftAnchor constant:10].active = YES;
[influence.rightAnchor constraintEqualToAnchor:self.scrollView.rightAnchor constant:-10].active = YES;
[influence.heightAnchor constraintEqualToConstant:100].active = YES;
return influence;
}