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9年前发布

IOS自适应前段库-Masonry的使用

 作者：Jekyll
Masonry是一个轻量级的布局框架，拥有自己的描述语法，采用更优雅的链式语法封装自动布局，简洁明了并具有高可读性，而且同时支持 iOS 和 Max OS X。Masonry是一个用代码写iOS或OS界面的库，可以代替Auto layout。Masonry的github地址：https://github.com/SnapKit/Masonry

本章内容

- Masonry配置

- Masonry使用

- Masonry实例

Masonry配置

- 推荐使用pods方式引入类库，pod 'Masonry'，若不知道pod如何使用，情况我的另一篇文章： 提高ios开发效率的工具

- 引入头文件 #import "Masonry.h"

Masonry使用讲解

mas_makeConstraints 是给view添加约束，约束有几种，分别是边距，宽，高，左上右下距离，基准线。添加过约束后可以有修正，修正有offset（位移）修正和multipliedBy（倍率）修正。

语法一般是 make.equalTo or make.greaterThanOrEqualTo or make.lessThanOrEqualTo + 倍数和位移修正。

注意点1： 使用 mas_makeConstraints方法的元素必须事先添加到父元素的中，例如[self.view addSubview:view];

注意点2： masequalTo 和 equalTo 区别：masequalTo 比equalTo多了类型转换操作，一般来说，大多数时候两个方法都是 通用的，但是对于数值元素使用mas_equalTo。对于对象或是多个属性的处理，使用equalTo。特别是多个属性时，必须使用equalTo,例如 make.left.and.right.equalTo(self.view);

注意点3: 注意到方法with和and,这连个方法其实没有做任何操作，方法只是返回对象本身，这这个方法的左右完全是为了方法写的时候的可读性 。make.left.and.right.equalTo(self.view);和make.left.right.equalTo(self.view);是完全一样的，但是明显的加了and方法的语句可读性 更好点。

Masonry初级使用例子 

// exp1: 中心点与self.view相同，宽度为400*400  -(void)exp1{      UIView *view = [UIView new];      [view setBackgroundColor:[UIColor redColor]];      [self.view addSubview:view];      [view mas_makeConstraints:^(MASConstraintMaker *make) {           make.center.equalTo(self.view);           make.size.mas_equalTo(CGSizeMake(400,400));      }];  }  //exp2: 上下左右边距都为10  -(void)exp2{      UIView *view = [UIView new];      [view setBackgroundColor:[UIColor redColor]];      [self.view addSubview:view];      [view mas_makeConstraints:^(MASConstraintMaker *make) {          make.edges.equalTo(self.view).with.insets(UIEdgeInsetsMake(10, 10, 10, 10));          //  make.left.equalTo(self.view).with.offset(10);          //  make.right.equalTo(self.view).with.offset(-10);          //  make.top.equalTo(self.view).with.offset(10);          //  make.bottom.equalTo(self.view).with.offset(-10);      }];  }  //exp3 让两个高度为150的view垂直居中且等宽且等间隔排列 间隔为10  -(void)exp3{      UIView *view1 = [UIView new];      [view1 setBackgroundColor:[UIColor redColor]];      [self.view addSubview:view1];      UIView *view2 = [UIView new];      [view2 setBackgroundColor:[UIColor redColor]];      [self.view addSubview:view2];      [view1 mas_makeConstraints:^(MASConstraintMaker *make) {          make.centerY.mas_equalTo(self.view.mas_centerY);          make.height.mas_equalTo(150);          make.width.mas_equalTo(view2.mas_width);          make.left.mas_equalTo(self.view.mas_left).with.offset(10);          make.right.mas_equalTo(view2.mas_left).offset(-10);      }];      [view2 mas_makeConstraints:^(MASConstraintMaker *make) {          make.centerY.mas_equalTo(self.view.mas_centerY);          make.height.mas_equalTo(150);          make.width.mas_equalTo(view1.mas_width);          make.left.mas_equalTo(view1.mas_right).with.offset(10);          make.right.equalTo(self.view.mas_right).offset(-10);      }];  }

Masonry高级使用例子1

iOS计算器使用Masorny布局：

IOS自适应前段库-Masonry的使用 

//高级布局练习 ios自带计算器布局  -(void)exp4{      //申明区域，displayView是显示区域，keyboardView是键盘区域      UIView *displayView = [UIView new];      [displayView setBackgroundColor:[UIColor blackColor]];      [self.view addSubview:displayView];      UIView *keyboardView = [UIView new];      [self.view addSubview:keyboardView];      //先按1：3分割 displView（显示结果区域）和 keyboardView（键盘区域）      [displayView mas_makeConstraints:^(MASConstraintMaker *make) {          make.top.equalTo(self.view.mas_top);          make.left.and.right.equalTo(self.view);          make.height.equalTo(keyboardView).multipliedBy(0.3f);      }];      [keyboardView mas_makeConstraints:^(MASConstraintMaker *make) {          make.top.equalTo(displayView.mas_bottom);          make.bottom.equalTo(self.view.mas_bottom);          make.left.and.right.equalTo(self.view);      }];      //设置显示位置的数字为0      UILabel *displayNum = [[UILabel alloc]init];      [displayView addSubview:displayNum];      displayNum.text = @"0";      displayNum.font = [UIFont fontWithName:@"HeiTi SC" size:70];      displayNum.textColor = [UIColor whiteColor];      displayNum.textAlignment = NSTextAlignmentRight;      [displayNum mas_makeConstraints:^(MASConstraintMaker *make) {          make.left.and.right.equalTo(displayView).with.offset(-10);          make.bottom.equalTo(displayView).with.offset(-10);      }];      //定义键盘键名称，？号代表合并的单元格      NSArray *keys = @[@"AC",@"+/-",@"%",@"÷"                       ,@"7",@"8",@"9",@"x"                       ,@"4",@"5",@"6",@"-"                       ,@"1",@"2",@"3",@"+"                       ,@"0",@"?",@".",@"="];      int indexOfKeys = 0;      for (NSString *key in keys){          //循环所有键          indexOfKeys++;          int rowNum = indexOfKeys %4 ==0? indexOfKeys/4:indexOfKeys/4 +1;          int colNum = indexOfKeys %4 ==0? 4 :indexOfKeys %4;          NSLog(@"index is:%d and row:%d,col:%d",indexOfKeys,rowNum,colNum);          //键样式          UIButton *keyView = [UIButton buttonWithType:UIButtonTypeCustom];          [keyboardView addSubview:keyView];          [keyView setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];          [keyView setTitle:key forState:UIControlStateNormal];          [keyView.layer setBorderWidth:1];          [keyView.layer setBorderColor:[[UIColor blackColor]CGColor]];          [keyView.titleLabel setFont:[UIFont fontWithName:@"Arial-BoldItalicMT" size:30]];          //键约束          [keyView mas_makeConstraints:^(MASConstraintMaker *make) {              //处理 0 合并单元格              if([key isEqualToString:@"0"] || [key isEqualToString:@"?"] ){                  if([key isEqualToString:@"0"]){                      [keyView mas_makeConstraints:^(MASConstraintMaker *make) {                          make.height.equalTo(keyboardView.mas_height).with.multipliedBy(.2f);                          make.width.equalTo(keyboardView.mas_width).multipliedBy(.5);                          make.left.equalTo(keyboardView.mas_left);                          make.baseline.equalTo(keyboardView.mas_baseline).with.multipliedBy(.9f);                      }];                  }if([key isEqualToString:@"?"]){                      [keyView removeFromSuperview];                  }              }              //正常的单元格              else{                  make.width.equalTo(keyboardView.mas_width).with.multipliedBy(.25f);                  make.height.equalTo(keyboardView.mas_height).with.multipliedBy(.2f);                  //按照行和列添加约束，这里添加行约束                  switch (rowNum) {                      case 1:                      {                          make.baseline.equalTo(keyboardView.mas_baseline).with.multipliedBy(.1f);                          keyView.backgroundColor = [UIColor colorWithRed:205 green:205 blue:205 alpha:1];                      }                          break;                      case 2:                      {                          make.baseline.equalTo(keyboardView.mas_baseline).with.multipliedBy(.3f);                      }                          break;                      case 3:                      {                          make.baseline.equalTo(keyboardView.mas_baseline).with.multipliedBy(.5f);                      }                          break;                      case 4:                      {                          make.baseline.equalTo(keyboardView.mas_baseline).with.multipliedBy(.7f);                      }                          break;                      case 5:                      {                          make.baseline.equalTo(keyboardView.mas_baseline).with.multipliedBy(.9f);                      }                          break;                      default:                          break;                  }                  //按照行和列添加约束，这里添加列约束                  switch (colNum) {                      case 1:                      {                          make.left.equalTo(keyboardView.mas_left);                      }                          break;                      case 2:                      {                          make.right.equalTo(keyboardView.mas_centerX);                      }                          break;                      case 3:                      {                          make.left.equalTo(keyboardView.mas_centerX);                      }                          break;                      case 4:                      {                          make.right.equalTo(keyboardView.mas_right);                          [keyView setBackgroundColor:[UIColor colorWithRed:243 green:127 blue:38 alpha:1]];                      }                          break;                      default:                          break;                  }              }          }];      }  }

本例子使用的baseline去控制高度位置，这似乎不是太准，如果想要精准控制高度位置，可以使用一行一行添加的方法，每次当前行的top去equelTo上一行的bottom。 给个提示： 

for（遍历所有行)      for（遍历所以列）      //当前行约束根据上一行去设置      ......

下一个例子中，使用上面类似的方法

Masonry高级使用例子2

根据设计图，使用masonry布局：

步骤1

IOS自适应前段库-Masonry的使用

步骤2 

IOS自适应前段库-Masonry的使用

步骤1 

 -(void)createUI{      UIView *titleView = [UIView new];      titleView.backgroundColor = [UIColor redColor];      UIView *caredView = [UIView new];      [self.view addSubview:caredView];      UIView *brifeView = [UIView new];      [self.view addSubview:brifeView];      //self.view      self.view.backgroundColor = [UIColor colorWithWhite:0.965 alpha:1.000];      //thrm      UIImageView *plantThrm = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"defalutPlantReferenceIcon"]];      [self.view addSubview:plantThrm];      [plantThrm mas_makeConstraints:^(MASConstraintMaker *make) {          make.left.and.top.equalTo(self.view).with.offset(10);      }];      //title         [self.view addSubview:titleView];         UIImageView *bgTitleView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"bg-plant-reference-title"]];      [titleView addSubview:bgTitleView];      [titleView mas_makeConstraints:^(MASConstraintMaker *make) {          make.right.equalTo(self.view.mas_right);          make.left.equalTo(plantThrm.mas_right).with.offset(20);          make.centerY.equalTo(plantThrm.mas_centerY);     }];      [bgTitleView mas_makeConstraints:^(MASConstraintMaker *make) {          make.edges.equalTo(titleView);      }];      UILabel *title = [[UILabel alloc]init];      title.textColor =  [UIColor whiteColor];      title.font = [UIFont fontWithName:@"Heiti SC" size:26];      title.text = _reference.name;      [titleView addSubview:title];      [title mas_makeConstraints:^(MASConstraintMaker *make) {          make.left.equalTo(titleView.mas_left).offset(10);          make.width.equalTo(titleView.mas_width);          make.centerY.equalTo(titleView.mas_centerY);      }];      //植物养护      UILabel *caredTitle = [[UILabel alloc]init];      caredTitle.textColor =  [UIColor colorWithRed:0.172 green:0.171 blue:0.219 alpha:1.000];      caredTitle.font = [UIFont fontWithName:@"Heiti SC" size:10];      caredTitle.text = @"植物养护";      [self.view addSubview:caredTitle];      [caredTitle mas_makeConstraints:^(MASConstraintMaker *make) {          make.top.equalTo(plantThrm.mas_bottom).with.offset(20);          make.left.and.right.equalTo(self.view).with.offset(10);          make.height.mas_equalTo(10);      }];      //将图层的边框设置为圆脚      caredView.layer.cornerRadius = 5;      caredView.layer.masksToBounds = YES;      //给图层添加一个有色边框      caredView.layer.borderWidth = 1;      caredView.layer.borderColor = [[UIColor colorWithWhite:0.521 alpha:1.000] CGColor];      caredView.backgroundColor = [UIColor whiteColor];      [caredView mas_makeConstraints:^(MASConstraintMaker *make) {          make.top.equalTo(caredTitle.mas_bottom).with.offset(5);          make.left.equalTo(self.view.mas_left).with.offset(10);          make.right.equalTo(self.view.mas_right).with.offset(-10);          make.height.equalTo(brifeView);      }];      //植物简介      UILabel *brifeTitle = [[UILabel alloc]init];      brifeTitle.textColor =  [UIColor colorWithRed:0.172 green:0.171 blue:0.219 alpha:1.000];      brifeTitle.font = [UIFont fontWithName:@"Heiti SC" size:10];      brifeTitle.text = @"植物简介";      [self.view addSubview:brifeTitle];      [brifeTitle mas_makeConstraints:^(MASConstraintMaker *make) {          make.top.equalTo(caredView.mas_bottom).with.offset(20);          make.left.and.right.equalTo(self.view).with.offset(10);          make.height.mas_equalTo(10);      }];      //将图层的边框设置为圆脚      brifeView.layer.cornerRadius = 5;      brifeView.layer.masksToBounds = YES;      //给图层添加一个有色边框      brifeView.layer.borderWidth = 1;      brifeView.layer.borderColor = [[UIColor colorWithWhite:0.521 alpha:1.000] CGColor];      brifeView.backgroundColor = [UIColor whiteColor];      [brifeView mas_makeConstraints:^(MASConstraintMaker *make) {          make.top.equalTo(brifeTitle.mas_bottom).with.offset(5);          make.left.equalTo(self.view.mas_left).with.offset(10);          make.right.equalTo(self.view.mas_right).with.offset(-10);          make.bottom.equalTo(self.view.mas_bottom).with.offset(-10);          make.height.equalTo(caredView);      }];  }

完成之后如下图 步骤1

IOS自适应前段库-Masonry的使用

步骤2,在上面的基础上，增加植物养护部分ui构造的代码，思想是，先构造出四行，然后根据每行单独构造出行样式。 

//把块拆分为四行  -(void)createIndexUIWithView:(UIView *)view{      //拆分四行      UIView *row1 = [UIView new];      UIView *row2 = [UIView new];      UIView *row3 = [UIView new];      UIView *row4 = [UIView new];      [view addSubview:row1];      [view addSubview:row2];      [view addSubview:row3];      [view addSubview:row4];      [row1 mas_makeConstraints:^(MASConstraintMaker *make) {          make.right.and.left.equalTo(view);          make.height.equalTo(view.mas_height).multipliedBy(0.25);          make.top.equalTo(view.mas_top);      }];      [row2 mas_makeConstraints:^(MASConstraintMaker *make) {          make.right.and.left.equalTo(view);          make.top.equalTo(row1.mas_bottom);          make.height.equalTo(view.mas_height).multipliedBy(0.25);      }];      [row3 mas_makeConstraints:^(MASConstraintMaker *make) {          make.right.equalTo(view.mas_right);          make.top.equalTo(row2.mas_bottom);          make.height.equalTo(view.mas_height).multipliedBy(0.25);          make.left.equalTo(view.mas_left);      }];      [row4 mas_makeConstraints:^(MASConstraintMaker *make) {          make.right.and.left.equalTo(view);          make.top.equalTo(row3.mas_bottom);          make.height.equalTo(view.mas_height).multipliedBy(0.25);      }];      [self createIndexRowUI:PlantReferenceWaterIndex withUIView:row1];      [self createIndexRowUI:PlantReferenceSumIndex withUIView:row2];      [self createIndexRowUI:PlantReferenceTemperatureIndex withUIView:row3];      [self createIndexRowUI:PlantReferenceElectrolyteIndex withUIView:row4];  }  //构造每行的UI  -(void)createIndexRowUI:(PlantReferenceIndex) index withUIView:(UIView *)view{      //index标题      UILabel *indexTitle = [UILabel new];      indexTitle.font = [UIFont fontWithName:@"HeiTi SC" size:14];      indexTitle.textColor = [UIColor colorWithWhite:0.326 alpha:1.000];      [view addSubview:indexTitle];      [indexTitle mas_makeConstraints:^(MASConstraintMaker *make) {          make.left.equalTo(view.mas_left).with.offset(20);          make.centerY.equalTo(view.mas_centerY);      }];      switch (index) {          case PlantReferenceWaterIndex:          {              indexTitle.text = @"水分";              UIImageView * current;              for(int i=1;i<=5;i++){                 if(i<_reference.waterIndex){                     current = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"icon_water_light"]];                 }else{                     current = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"icon_water_dark"]];                 }                 [view addSubview:current];                 //间距12%，左边留空30%                 [current mas_makeConstraints:^(MASConstraintMaker *make) {                     make.left.equalTo(view.mas_right).with.multipliedBy(0.12*(i-1) +0.3);                     make.centerY.equalTo(view.mas_centerY);                 }];             }         }               break;         case PlantReferenceSumIndex:         {             indexTitle.text = @"光照";             UIImageView * current;             for(int i=1;i<=5;i++){                 if(i<_reference.temperatureIndex){                     current = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"icon_summer_light"]];                 }else{                     current = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"icon_summer_dark"]];                 }                 [view addSubview:current];                 //间距12%，左边留空30%                 [current mas_makeConstraints:^(MASConstraintMaker *make) {                     make.left.equalTo(view.mas_right).with.multipliedBy(0.12*(i-1) +0.3);                     make.centerY.equalTo(view.mas_centerY);                 }];             }         }               break;         case PlantReferenceTemperatureIndex:         {             indexTitle.text = @"温度";             UIImageView * current;             for(int i=1;i<=5;i++){                 if(i<_reference.sumIndex){                     current = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"icon_temperature_light"]];                 }else{                     current = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"icon_temperature_dark"]];                 }                 [view addSubview:current];                 //间距12%，左边留空30%                 [current mas_makeConstraints:^(MASConstraintMaker *make) {                     make.left.equalTo(view.mas_right).with.multipliedBy(0.12*(i-1) +0.3);                     make.centerY.equalTo(view.mas_centerY);                 }];             }         }               break;         case PlantReferenceElectrolyteIndex:         {             indexTitle.text = @"肥料";             UIImageView * current;             for(int i=1;i<=5;i++){                 if(i<_reference.electrolyteIndex){                     current = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"icon_electolyte_light"]];                 }else{                     current = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"icon_electolyte_dark"]];                 }                 [view addSubview:current];                 //间距12%，左边留空30%                 [current mas_makeConstraints:^(MASConstraintMaker *make) {                     make.left.equalTo(view.mas_right).with.multipliedBy(0.12*(i-1) +0.3);                     make.centerY.equalTo(view.mas_centerY);                 }];             }         }             break;         default:             break;     } } //在步骤1createui的基础上，做了一些微调。 -(void)createUI{     self.title = _reference.name;     UIView *titleView = [UIView new];     UIView *caredView = [UIView new];     [self.view addSubview:caredView];     UITextView *brifeView = [UITextView new];     [self.view addSubview:brifeView];     //self.view     self.view.backgroundColor = [UIColor colorWithWhite:0.965 alpha:1.000];     //thrm     UIImageView *plantThrm = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"defalutPlantReferenceIcon"]];     [self.view addSubview:plantThrm];     [plantThrm mas_makeConstraints:^(MASConstraintMaker *make) {         make.left.and.top.equalTo(self.view).with.offset(10);     }];     //title        [self.view addSubview:titleView];        UIImageView *bgTitleView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"bg-plant-reference-title"]];     [titleView addSubview:bgTitleView];     [titleView mas_makeConstraints:^(MASConstraintMaker *make) {         make.right.equalTo(self.view.mas_right);         make.left.equalTo(plantThrm.mas_right).with.offset(20);         make.centerY.equalTo(plantThrm.mas_centerY);    }];     [bgTitleView mas_makeConstraints:^(MASConstraintMaker *make) {         make.edges.equalTo(titleView);     }];     UILabel *title = [[UILabel alloc]init];     title.textColor =  [UIColor whiteColor];     title.font = [UIFont fontWithName:@"Heiti SC" size:26];     title.text = _reference.name;     [titleView addSubview:title];     [title mas_makeConstraints:^(MASConstraintMaker *make) {         make.left.equalTo(titleView.mas_left).offset(10);         make.width.equalTo(titleView.mas_width);         make.centerY.equalTo(titleView.mas_centerY);     }];     //植物养护     UILabel *caredTitle = [[UILabel alloc]init];     caredTitle.textColor =  [UIColor colorWithRed:0.172 green:0.171 blue:0.219 alpha:1.000];     caredTitle.font = [UIFont fontWithName:@"Heiti SC" size:10];     caredTitle.text = @"植物养护";     [self.view addSubview:caredTitle];     [caredTitle mas_makeConstraints:^(MASConstraintMaker *make) {         make.top.equalTo(plantThrm.mas_bottom).with.offset(20);         make.left.and.right.equalTo(self.view).with.offset(10);         make.height.mas_equalTo(10);     }];     //植物养护 数据     [self createIndexUIWithView:caredView];     //将图层的边框设置为圆脚     caredView.layer.cornerRadius = 5;     caredView.layer.masksToBounds = YES;     //给图层添加一个有色边框     caredView.layer.borderWidth = 1;     caredView.layer.borderColor = [[UIColor colorWithWhite:0.521 alpha:1.000] CGColor];     caredView.backgroundColor = [UIColor whiteColor];     [caredView mas_makeConstraints:^(MASConstraintMaker *make) {         make.top.equalTo(caredTitle.mas_bottom).with.offset(5);         make.left.equalTo(self.view.mas_left).with.offset(10);         make.right.equalTo(self.view.mas_right).with.offset(-10);         make.height.equalTo(brifeView);     }];     //植物简介     UILabel *brifeTitle = [[UILabel alloc]init];     brifeTitle.textColor =  [UIColor colorWithRed:0.172 green:0.171 blue:0.219 alpha:1.000];     brifeTitle.font = [UIFont fontWithName:@"Heiti SC" size:10];     brifeTitle.text = @"植物简介";     [self.view addSubview:brifeTitle];     [brifeTitle mas_makeConstraints:^(MASConstraintMaker *make) {         make.top.equalTo(caredView.mas_bottom).with.offset(20);         make.left.and.right.equalTo(self.view).with.offset(10);         make.height.mas_equalTo(10);     }];     //将图层的边框设置为圆脚     brifeView.layer.cornerRadius = 5;     brifeView.layer.masksToBounds = YES;     //给图层添加一个有色边框     brifeView.layer.borderWidth = 1;     brifeView.layer.borderColor = [[UIColor colorWithWhite:0.447 alpha:1.000] CGColor];     brifeView.backgroundColor = [UIColor whiteColor];     //文字样式 //    brifeView.textColor = [UIColor colorWithWhite:0.352 alpha:1.000]; //    brifeView.font = [UIFont fontWithName:@"HeiTi SC" size:12];     NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc]init];     paragraphStyle.lineHeightMultiple = 20.f;     paragraphStyle.maximumLineHeight = 25.f;     paragraphStyle.minimumLineHeight = 15.f;     paragraphStyle.alignment = NSTextAlignmentJustified;     NSDictionary *attributes = @{ NSFontAttributeName:[UIFont systemFontOfSize:12], NSParagraphStyleAttributeName:paragraphStyle, NSForegroundColorAttributeName:[UIColor colorWithWhite:0.447 alpha:1.000]};     //植物简介数据     //brifeView.text = _reference.brief;     brifeView.attributedText = [[NSAttributedString alloc] initWithString: _reference.brief attributes:attributes];     [brifeView mas_makeConstraints:^(MASConstraintMaker *make) {         make.top.equalTo(brifeTitle.mas_bottom).with.offset(5);         make.left.equalTo(self.view.mas_left).with.offset(10);         make.right.equalTo(self.view.mas_right).with.offset(-10);         make.bottom.equalTo(self.view.mas_bottom).with.offset(-10);         make.height.equalTo(caredView);     }]; }

完成之后如下图 步骤2


IOS自适应前段库-Masonry的使用

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