IOS自适应前段库-Masonry的使用

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：

//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

步骤2

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

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