Masonry小结

一,容易混淆的问题

1.make.left.equal(xxx)的参数若为某个控件,则默认为以该控件的 left 为基准对照.

//these two constraints are exactly the same

　　make.left.greaterThanOrEqualTo(label);
　　make.left.greaterThanOrEqualTo(label.mas_left);

2.宽度/高度可以使用常亮值, left/right/top/bottom/centerY/centerX 也可以用,但是代表的是相对位置.

//width >= 200 && width <= 400
make.width.greaterThanOrEqualTo(@200);
make.width.lessThanOrEqualTo(@400)

//creates view.left = view.superview.left + 10
make.left.lessThanOrEqualTo(@10)
make.left.lessThanOrEqualTo(10)

3.设置边距

    [self.webView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(self);
    }];

4.