objective-c - iOS开发中 -- 关于使用Masonry去自适应ScrollView滚动视图内容的一些疑问！！！

Question

一般滚动视图ScrollView上下滑动式，使用Masonry可以去自适应内容大小，只要在最后一个控件后面增加一些ScrollView的约束即可，比如： {代码...} 这样就可以去自适应ScrollView内容多少，有多少都不怕。 2.问题来...

伊谢尔伦 · Answer

First of all, when using constraints in sv, you must determine the size (constraints) of the internal controls and then determine the margin relationship between the internal controls and sv.

For example: if a view is in sv, first determine the margins between the view and sv, and then determine the width and height of the view.

If there are multiple views side by side. You determine the width, height, and margins of the views

阿神 · Answer

The horizontal and vertical writing methods are similar. There should be no problem with the grammar of the two Masnory sentences above. You can find out if there are other reasons. I feel that it should not be a version problem, but you can try updating it.

迷茫 · Answer

参考一下下面的写法：
self.automaticallyAdjustsScrollViewInsets = NO;
__weak __typeof(self) weakSelf = self;
UIView *sv = [UIView new];
sv.backgroundColor = [UIColor blackColor];
[self.view addSubview:sv];
[sv mas_makeConstraints:^(MASConstraintMaker *make) {
    make.center.equalTo(weakSelf.view);
    make.size.mas_equalTo(CGSizeMake(300, 300));
}];

UIScrollView *scrollView = [UIScrollView new];
scrollView.backgroundColor = [UIColor whiteColor];
[sv addSubview:scrollView];

[scrollView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.edges.equalTo(sv).insets(UIEdgeInsetsMake(5, 5, 5, 5));
}];
UIView *container = [UIView new];
[scrollView addSubview:container];

[container mas_makeConstraints:^(MASConstraintMaker *make) {
    make.edges.equalTo(scrollView);
    make.height.equalTo(scrollView);
}];

int count = 10;
UIView *lastView = nil;
for (int i = 1; i < count; i++) {
    UIView *subV = [UIView new];
    [container addSubview:subV];
    subV.backgroundColor = [UIColor colorWithRed:(arc4random() % 256 / 256.0)
                                           green:(arc4random() % 256 / 256.0)
                                            blue:(arc4random() % 256 / 256.0)
                                           alpha:1];
    [subV mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.bottom.equalTo(container);
        make.width.mas_equalTo(20 * i);
        if (lastView) {
            make.left.mas_equalTo(lastView.mas_right);
        }else{
            make.left.mas_equalTo(container.mas_left);
        }
    }];
    
    lastView = subV;
}
[container mas_updateConstraints:^(MASConstraintMaker *make) {
    make.right.mas_equalTo(lastView.mas_right);
}];