Scrollable stackView

ViewController.m

//
//  ViewController.m
//  stackVIewtest
//
//

#import "ViewController.h"

@interface ViewController ()
@property UILabel *titleLabel;
@property UIScrollView *scrollView;
@property UIStackView *stackView;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    _titleLabel = [[UILabel alloc] init];
    _scrollView = [[UIScrollView alloc] init];
    _stackView = [[UIStackView alloc] init];
    
    
    _titleLabel.translatesAutoresizingMaskIntoConstraints = NO;
    _titleLabel.text = @"Note";
    
    
    _scrollView.translatesAutoresizingMaskIntoConstraints = NO;
    _scrollView.contentSize = CGSizeMake(self.view.frame.size.width, 1500);
    _scrollView.backgroundColor = [UIColor grayColor];
    
    
    
    _stackView.translatesAutoresizingMaskIntoConstraints = NO;
    _stackView.axis = UILayoutConstraintAxisVertical;
    _stackView.distribution = UIStackViewDistributionEqualSpacing;
    _stackView.alignment = UIStackViewAlignmentCenter;
    _stackView.spacing = 30;
    
    
    
    [self.view addSubview:_titleLabel];
    [self.view addSubview:_scrollView];
    [_scrollView addSubview:_stackView];
    
    [self setupLabelConstraint];
    [self setupScrollViewConstraint];
    [self setupStackViewConstraint];
    [self setupViews];
}

- (void) viewDidLayoutSubviews {
    NSLog(@"viewDidLayoutSubviews\n%f : %f",_scrollView.contentSize.height,_stackView.frame.size.height);
//    _scrollView.contentSize = _stackView.frame.size;
}

- (void) viewWillAppear:(BOOL)animated {
    NSLog(@"viewWillAppear\n%f : %f",_scrollView.contentSize.height,_stackView.frame.size.height);
//    _scrollView.contentSize = _stackView.frame.size;
}

- (void) viewDidAppear:(BOOL)animated {
    
    NSLog(@"viewDidAppear\n%f : %f",_scrollView.contentSize.height,_stackView.frame.size.height);
    _scrollView.contentSize = _stackView.frame.size;
}

- (void)setupLabelConstraint {
    [_titleLabel.topAnchor constraintEqualToAnchor:self.view.topAnchor constant:10].active = YES;
    [_titleLabel.leftAnchor constraintEqualToAnchor:self.view.leftAnchor constant:10].active = YES;
    [_titleLabel.widthAnchor constraintEqualToConstant:100].active = YES;
    [_titleLabel.heightAnchor constraintEqualToConstant:20].active = YES;
}

- (void)setupScrollViewConstraint {
    [_scrollView.topAnchor constraintEqualToAnchor:_titleLabel.bottomAnchor constant:10].active = YES;
    [_scrollView.leftAnchor constraintEqualToAnchor:self.view.leftAnchor constant:10].active = YES;
    [_scrollView.rightAnchor constraintEqualToAnchor:self.view.rightAnchor constant:-10].active = YES;
    [_scrollView.bottomAnchor constraintEqualToAnchor:self.view.bottomAnchor constant:-10].active = YES;
    
    //[_scrollView.heightAnchor constraintEqualToConstant:200].active = YES;
}

- (void)setupStackViewConstraint {
    [_stackView.leftAnchor constraintEqualToAnchor:_scrollView.leftAnchor].active = YES;
    [_stackView.rightAnchor constraintEqualToAnchor:_scrollView.rightAnchor].active = YES;
    [_stackView.topAnchor constraintEqualToAnchor:_scrollView.topAnchor].active = YES;
//    [_stackView.bottomAnchor constraintEqualToAnchor:_scrollView.bottomAnchor].active = YES;
    [_stackView.widthAnchor constraintEqualToAnchor:_scrollView.widthAnchor].active = YES;
//    [_stackView.heightAnchor constraintEqualToAnchor:_scrollView.heightAnchor].active = YES;
}

- (void)setupViews {
    for (int i = 0 ; i < 10; i++) {
        UIView *view1 = [[UIView alloc] init];
        view1.backgroundColor = [UIColor blueColor];
        view1.translatesAutoresizingMaskIntoConstraints = NO;
        [view1.heightAnchor constraintEqualToConstant:100].active = YES;
        [view1.widthAnchor constraintEqualToConstant:120].active = YES;
        [_stackView addArrangedSubview:view1];
    }
}

@end