Masonry使用

来源：互联网发布：三茅招聘软件编辑：程序博客网时间：2024/06/05 20:31

mas_equalTo和equalTo

默认情况下

mas_equalTo有自动包装功能,比如自动将20包为@20

equalTo没有自动包装功能

如果添加下面的宏,那么mas_equal和equalTo就没有区别

#define MAS_SHORTHAND_GLOBALS

注意:这个宏一定要添加到#import "Masonry.h"前面

mas_width和width

默认情况下

width是make对象的一个属性,用来添加宽度约束用的,表示对宽度进行约束

mas_width是一个属性值,用来当做equalTo的参数,表示某个空间的宽度属性

如果添加了下面的宏,mas_width也可以写成width

#define MAS_SHORTHAND

#import "ViewController.h"#define MAS_SHORTHAND#define MAS_SHORTHAND_GLOBALS#import <Masonry.h>@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];            UIView *blueView = UIView.new;    blueView.backgroundColor = [UIColor colorWithRed:183 / 255.0 green:211 / 255.0 blue:250 / 255.0 alpha:1];        [self.view addSubview:blueView];        UIView *redView = UIView.new;    redView.backgroundColor = [UIColor redColor];        [self.view addSubview:redView];        CGFloat margin = 20;    CGFloat height = 50;    [blueView makeConstraints:^(MASConstraintMaker *make) {                make.left.equalTo(self.view.left).offset(margin);        make.right.equalTo(redView.left).offset(-margin);        make.bottom.equalTo(self.view.bottom).offset(-margin);        make.height.equalTo(height);        make.top.equalTo(redView.top);        make.bottom.equalTo(redView.bottom);        make.width.equalTo(redView.width);    }];        [redView makeConstraints:^(MASConstraintMaker *make) {        make.right.equalTo(self.view.right).offset(-margin);    }];//    /** 会将以前的所有约束删掉,添加新的约束 *///    [blueView mas_remakeConstraints:^(MASConstraintMaker *make) {//        //    }];//    //    /** 将会覆盖以前的某些约束 *///    [blueView mas_updateConstraints:^(MASConstraintMaker *make) {//        //    }];}/**  *约束的类型: 1.尺寸: width/height/size 2.边界: left/leading/right/trailing/top/bottom 3.中心点: center/centerX/centerY 4.边界: edges */- (void)test4 {        UIView *blueView = UIView.new;    blueView.backgroundColor = [UIColor colorWithRed:183 / 255.0 green:211 / 255.0 blue:250 / 255.0 alpha:1];        [self.view addSubview:blueView];        [blueView makeConstraints:^(MASConstraintMaker *make) {        make.width.equalTo(self.view.width);        make.height.equalTo(self.view.height);        make.centerX.equalTo(self.view.centerX);        make.centerY.equalTo(self.view.centerY);    }];}- (void)test3 {        UIView *blueView = UIView.new;    blueView.backgroundColor = [UIColor colorWithRed:183 / 255.0 green:211 / 255.0 blue:250 / 255.0 alpha:1];        [self.view addSubview:blueView];        /**     距离父控件四周都是50间距     */    //    [blueView mas_makeConstraints:^(MASConstraintMaker *make) {    //        make.left.mas_equalTo(self.view.mas_left).offset(50);    //        make.right.mas_equalTo(self.view.mas_right).offset(-50);    //        make.top.mas_equalTo(self.view.mas_top).offset(50);    //        make.bottom.mas_equalTo(self.view.mas_bottom).offset(-50);    //    }];        //    [blueView mas_makeConstraints:^(MASConstraintMaker *make) {    //        make.left.mas_equalTo(self.view).offset(50);    //        make.right.mas_equalTo(self.view).offset(-50);    //        make.top.mas_equalTo(self.view).offset(50);    //        make.bottom.mas_equalTo(self.view).offset(-50);    //    }];        //    [blueView mas_makeConstraints:^(MASConstraintMaker *make) {    //        make.left.offset(50);    //        make.right.offset(-50);    //        make.top.offset(50);    //        make.bottom.offset(-50);    //    }];        //    [blueView mas_makeConstraints:^(MASConstraintMaker *make) {    //        make.left.top.offset(50);    //        make.right.bottom.offset(-50);    //    }];        [blueView mas_makeConstraints:^(MASConstraintMaker *make) {        make.edges.mas_equalTo(self.view).insets(UIEdgeInsetsMake(50, 50, 50, 50));    }];}- (void)test2 {        UIView *blueView = UIView.new;    blueView.backgroundColor = [UIColor colorWithRed:183 / 255.0 green:211 / 255.0 blue:250 / 255.0 alpha:1];        [self.view addSubview:blueView];        /**     尺寸限制: 父控件一半     位置: 居中     */    [blueView mas_makeConstraints:^(MASConstraintMaker *make) {        make.size.mas_equalTo(self.view).multipliedBy(0.5);        make.center.mas_equalTo(self.view);    }];}- (void)test1 {        UIView *blueView = UIView.new;    blueView.backgroundColor = [UIColor colorWithRed:183 / 255.0 green:211 / 255.0 blue:250 / 255.0 alpha:1];        [self.view addSubview:blueView];        /**     尺寸限制: 100 X 100     位置: 粘着父控件右下角,间距是20     */        /** 这个方法只会添加新的约束 */    [blueView mas_makeConstraints:^(MASConstraintMaker *make) {        /** 在这个block里利用make对象创建新的约束 */        /** 尺寸约束 */        make.width.equalTo(@100);        make.height.equalTo(@100);        make.right.equalTo(self.view.mas_right).offset(-20);        make.bottom.equalTo(self.view.mas_bottom).offset(-20);    }];}

0 0