Masonry的简单使用（一）

一、新建工程

二、导入Masonry，可从我的GitHub上获取"Masonry"：https://github.com/sycFuture/Masonry

导入“Masonry.h”头文件

三、填入如下代码

- (void)viewDidLoad {

[super viewDidLoad];

UIView *greenView = UIView.new;

greenView.backgroundColor = UIColor.greenColor;

greenView.layer.borderColor = UIColor.grayColor.CGColor;

greenView.layer.borderWidth = 2;

[self.view addSubview:greenView];

UIView *redView = UIView.new;

redView.backgroundColor = UIColor.redColor;

redView.layer.borderColor = UIColor.cyanColor.CGColor;

redView.layer.borderWidth = 2;

[self.view addSubview:redView];

UIView *blueView = UIView.new;

blueView.backgroundColor = UIColor.blueColor;

blueView.layer.borderColor = UIColor.purpleColor.CGColor;

blueView.layer.borderWidth = 2;

[self.view addSubview:blueView];

UIView *orangeView = UIView.new;

orangeView.backgroundColor = UIColor.orangeColor;

orangeView.layer.borderColor = UIColor.brownColor.CGColor;

orangeView.layer.borderWidth = 2;

[self.view addSubview:orangeView];

// 使这三个控件等高

CGFloat padding = 10;//貌似是控件之间的距离

[greenView mas_makeConstraints:^(MASConstraintMaker *make) {

//设置greenView距离顶部的高度和距离左侧的高度均为padding

make.top.left.mas_equalTo(padding);

//设置greenView距离blueView的距离为padding

make.bottom.mas_equalTo(blueView.mas_top).offset(-padding);

//设置左侧距离redView的距离为padding

make.right.mas_equalTo(redView.mas_left).offset(-padding);

//设置greenView与redView等宽

make.width.mas_equalTo(redView);

}];

[redView mas_makeConstraints:^(MASConstraintMaker *make) {

make.top.bottom.height.mas_equalTo(greenView);

make.left.mas_equalTo(greenView.mas_right).offset(padding);

make.right.mas_equalTo(-padding);

}];

[blueView mas_makeConstraints:^(MASConstraintMaker *make) {

make.top.mas_equalTo(greenView.mas_bottom).offset(padding);

make.left.mas_equalTo(padding);

make.right.mas_equalTo(orangeView.mas_left).offset(-padding);

make.bottom.mas_equalTo(-padding);

make.height.mas_equalTo(greenView);

make.width.mas_equalTo(orangeView);

}];

[orangeView mas_makeConstraints:^(MASConstraintMaker *make) {

make.top.height.bottom.mas_equalTo(blueView);

make.left.mas_equalTo(blueView.mas_right).offset(padding);

make.right.mas_equalTo(-padding);

}];

}

四、运行即可看到如下效果