swift之UIScrollView 和SnapKit的故事

{

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view.
    /*
     
     
     verticalScrollView.backgroundColor = [UIColor whiteColor];
     verticalScrollView.pagingEnabled =NO;// 添加scrollView添加到父视图，并设置其约束
     verticalScrollView.bounces = NO;
     [self.view addSubview:verticalScrollView];
     
     [verticalScrollView mas_makeConstraints:^(MASConstraintMaker *make) {
     make.left.mas_equalTo(0);
     make.bottom.and.right.mas_equalTo(0);
     make.height.mas_equalTo(kScreenHeight);
     
     }];
     // 设置scrollView的子视图，即过渡视图contentSize，并设置其约束
     UIView *verticalContainerView = [[UIView alloc]init];
     [verticalScrollView addSubview:verticalContainerView];
     [verticalContainerView mas_makeConstraints:^(MASConstraintMaker *make) {
     make.top.left.bottom.and.right.equalTo(verticalScrollView).with.insets(UIEdgeInsetsZero);
     make.width.equalTo(verticalScrollView);
     
     }];
     */
    
    var scroll: UIScrollView = UIScrollView()
    
    self.view.addSubview(scroll)
    scroll.snp.makeConstraints { (m) in
        m.leading.equalToSuperview()
        m.bottom.trailing.equalToSuperview()
        m.height.equalToSuperview()
    }
    var content: UIView = UIView()
    scroll .addSubview(content)
    content.snp.makeConstraints { (m) in
        m.top.leading.bottom.trailing.equalToSuperview().inset(0)
        m.width.equalToSuperview()
    }
    
    
    /*
     UIView *lastView;
     
     UIImageView *imageview = ({
     UIImageView *imageview = [UIImageView new];
     
     imageview.image = [UIImage imageNamed:@"shezhi_gy_1"];
     imageview;
     });
     [verticalContainerView addSubview:imageview];
     [imageview mas_makeConstraints:^(MASConstraintMaker *make) {
     make.top.mas_equalTo(0);
     make.left.right.equalTo(verticalContainerView);
     make.height.equalTo(@(212*kScreenWidth/375.0));
     }];
     lastView = imageview;
     
     */
    
    var last: UIView?
    
    var  aview: UIView = UIView()
    aview.backgroundColor = .red
    content.addSubview(aview)
    aview.snp.makeConstraints { (m) in
        m.top.equalToSuperview()
        m.leading.trailing.equalToSuperview()
        m.height.equalTo(10)
        
    }
    
    last = aview
    
    
    if true {
        
        for i in 1...10 {
            var  aview: UIView = UIView()
            aview.backgroundColor = randomColor()
            content.addSubview(aview)
            aview.snp.makeConstraints { (m) in
                m.top.equalTo(last!.snp.bottom).offset(10)
                m.leading.trailing.equalToSuperview()
                m.height.equalTo(100)
        }
        last = aview
        }
    }

//
//
// [verticalContainerView mas_makeConstraints:^(MASConstraintMaker *make) {
//
// make.bottom.equalTo(lastView.mas_bottom);
// }];

    content.snp.makeConstraints { (m) in
        m.bottom.equalTo(last!)
    }
    
    
    
    
    
}

}