Masonry 使用

Masonry 基本概念

Masonry 基本用法

• Masonry示例代码

#import "ViewController.h"

//define this constant if you want to use Masonry without the 'mas_' prefix
#define MAS_SHORTHAND

//define this constant if you want to enable auto-boxing for default syntax
#define MAS_SHORTHAND_GLOBALS

#import "Masonry.h"


@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // 1.蓝色的view
    UIView *blueView = [[UIView alloc] init];
    blueView.backgroundColor = [UIColor blueColor];
    [self.view addSubview:blueView];

    // 2.红色的view
    UIView *redView = [[UIView alloc] init];
    redView.backgroundColor = [UIColor redColor];
    [self.view addSubview:redView];

    // 添加新的约束
    // 3.添加蓝色view的约束
    [blueView makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.view.left).offset(30);
        make.bottom.equalTo(self.view.bottom).offset(-30);
        make.right.equalTo(redView.left).offset(-30);
        make.width.equalTo(redView.width);
        make.height.equalTo(50);
    }];

    // 4.添加红色view的约束
    [redView makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(self.view.right).offset(-30);
        make.top.equalTo(blueView.top);
        make.bottom.equalTo(blueView.bottom);
    }];


    // 更新约束
   [blueView updateConstraints:^(MASConstraintMaker *make) {
       make.height.equalTo(80);
   }];

    // 删除之前所有的约束,重新添加新的约束
//    [blueView remakeConstraints:^(MASConstraintMaker *make) {
//
//    }];


    // with /and
}


- (void)center
{
    // 1.红色的view
    UIView *redView = [[UIView alloc] init];
    redView.backgroundColor = [UIColor redColor];
    [self.view addSubview:redView];

    // 2.添加约束
    //    [redView mas_makeConstraints:^(MASConstraintMaker *make) {
    //        make.width.equalTo(@100);
    //        make.height.equalTo(@100);
    //        make.centerX.equalTo(self.view.mas_centerX);
    //        make.centerY.equalTo(self.view.mas_centerY);
    //    }];

    //    [redView mas_makeConstraints:^(MASConstraintMaker *make) {
    //        make.width.mas_equalTo(100);
    //        make.height.mas_equalTo(100);
    //        make.centerX.mas_equalTo(self.view.mas_centerX);
    //        make.centerY.mas_equalTo(self.view.mas_centerY);
    //    }];

    [redView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.size.mas_equalTo(CGSizeMake(100, 100));
        make.center.mas_equalTo(self.view);
    }];
}
- (void)edge
{
    // 1.红色的view
    UIView *redView = [[UIView alloc] init];
    redView.backgroundColor = [UIColor redColor];
    [self.view addSubview:redView];

    // 2.添加约束
    //    [redView mas_makeConstraints:^(MASConstraintMaker *make) {
    //        make.top.equalTo(self.view.mas_top).offset(20);
    //        make.left.equalTo(self.view.mas_left).offset(20);
    //        make.right.equalTo(self.view.mas_right).offset(-20);
    //        make.bottom.equalTo(self.view.mas_bottom).offset(-20);
    //    }];

    //    [redView mas_makeConstraints:^(MASConstraintMaker *make) {
    //        make.top.equalTo(self.view).offset(20);
    //        make.left.equalTo(self.view).offset(20);
    //        make.right.equalTo(self.view).offset(-20);
    //        make.bottom.equalTo(self.view).offset(-20);
    //    }];

    //    [redView mas_makeConstraints:^(MASConstraintMaker *make) {
    //        make.top.offset(20);
    //        make.left.offset(20);
    //        make.right.offset(-20);
    //        make.bottom.offset(-20);
    //    }];

    //    [redView mas_makeConstraints:^(MASConstraintMaker *make) {
    //        make.top.left.offset(20);
    //        make.right.bottom.offset(-20);
    //    }];

    [redView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.insets(UIEdgeInsetsMake(20, 20, 20, 20));
    }];

}
@end

参考链接