Masonr布局对UIScrollView的内容自适应

Masonr布局对UIScrollView的内容自适应

1.添加UIscrollview到self.view上，并设置约束等于父视图，设置宽度。

self.scrollView.backgroundColor = [UIColor grayColor];
[self.view addSubview:self.scrollView];
[self.scrollView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.top.equalTo(self.view).offset(100);
    make.left.right.equalTo(self.view);
    make.bottom.equalTo(self.view);
}];

2.使用容器视图添加到UIscrollview上，所有的子视图布局在这个容器视图上。

[self.scrollView addSubview:self.contentView];
[self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.edges.equalTo(self.scrollView);
    make.width.equalTo(self.scrollView);
}];

[self.contentView addSubview:self.labTitle02];
[self.labTitle01 mas_makeConstraints:^(MASConstraintMaker *make) {
    make.top.equalTo(self.contentView.mas_top).offset(10);
    make.width.mas_equalTo(kScreenWidth-20);
    make.centerX.equalTo(self.contentView);
}];
[self.labTitle02 mas_makeConstraints:^(MASConstraintMaker *make) {
    make.top.equalTo(self.labTitle01.mas_bottom).offset(10);
    make.width.mas_equalTo(kScreenWidth-20);
    make.centerX.equalTo(self.contentView);
}];

3.设置布局的最底部的视图，容器视图的bottom等于最后一个视图的bottom

[self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.bottom.equalTo(self.labTitle03.mas_bottom).offset(30);
}];