ios开发app - iOS开发使用Masonry布局如何让父视图的高度随着子视图的变化而变化？

Answer 1

    [self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
         make.top.equalTo(@0);
         make.bottom.equalTo(@0);
     }];

Answer 2

Dynamicly calculate the string height when obtaining data, and set the parent control frame

Related methods: CGRect strRect = [str boundingRectWithSize:CGSizeMake(maxWidth, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName : [UIFont systemFontOfSize: fontSize]} context:nil];

Answer 3

It’s okay if the height of the parent view is not given. The content will prop it up
Of course, if it is a cell, you need to calculate it yourself

Answer 4

The bottom of the bottom view is equal to the bottom of the parent view