iOS frame布局 与 自动布局有什么区别呢？以及各自的应用场景

问题修改：
通过自动布局，我觉得跟frame 最大的区别就是自动布局可以在依赖的控件发生变化的时候紧跟变化，而frame 做不到的（可能我知识量不够，不知道有别的好方案哈，请指出），如下代码与gif图

/// 这是自动布局的代码
#import "ViewController.h"
#import "UIView+SGExtension.h"
#import "Masonry.h"

@interface ViewController ()
@property (nonatomic, strong) UIView  *kenView;
@property (nonatomic, strong) UIButton  *kenBtn;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    [self.view addSubview:self.kenView];
    [self.kenView addSubview:self.kenBtn];
    
    [self.kenBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.center.equalTo(self.kenView);
        make.width.equalTo(@(50));
        make.height.equalTo(self.kenView.mas_height);
    }];
}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
    self.kenView.height += 10;
}

-(UIView *)kenView{
    if (_kenView == nil) {
        _kenView = [[UIView alloc] init];
        _kenView.frame = CGRectMake(0, 0, 100, 100);
        _kenView.backgroundColor = [UIColor orangeColor];
    }
    return _kenView;
}

-(UIButton *)kenBtn{
    if (_kenBtn == nil) {
        _kenBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        _kenBtn.backgroundColor = [UIColor purpleColor];
    }
    return _kenBtn;
}

@end

/// 这是frame 布局的代码
#import "ViewController.h"
#import "UIView+SGExtension.h"
#import "Masonry.h"

@interface ViewController ()
@property (nonatomic, strong) UIView  *kenView;
@property (nonatomic, strong) UIButton  *kenBtn;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    [self.view addSubview:self.kenView];
    [self.kenView addSubview:self.kenBtn];
}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
    self.kenView.height += 10;
}

-(UIView *)kenView{
    if (_kenView == nil) {
        _kenView = [[UIView alloc] init];
        _kenView.frame = CGRectMake(0, 0, 100, 100);
        _kenView.backgroundColor = [UIColor orangeColor];
    }
    return _kenView;
}

-(UIButton *)kenBtn{
    if (_kenBtn == nil) {
        _kenBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        _kenBtn.backgroundColor = [UIColor purpleColor];
    }
    _kenBtn.height = self.kenView.height;
    _kenBtn.width = 50;
    _kenBtn.center = self.kenView.center;
    return _kenBtn;
}

@end