ios - masonry第三方库使用自动布局（参考：http://www.cocoachina.com/ios/20141219/10702.html）

#import "ViewController.h"

#import "Masonry.h"

#define kWeakSelf(weakSelf) __weak typeof(self)weakSelf = self

#define WS(weakSelf)  __weak __typeof(&*self)weakSelf = self

@interface ViewController ()

{

    UIView *topView;

}

@end



@implementation ViewController



- (void)viewDidLoad {

    [super viewDidLoad];

    kWeakSelf(ws);

    /**底部灰色view*/

    topView = [[UIView alloc]init];

    topView.backgroundColor = [UIColor lightGrayColor];

    [ws.view addSubview:topView];

    [topView mas_makeConstraints:^(MASConstraintMaker *make) {

        make.center.equalTo(ws.view);

        make.size.mas_equalTo(CGSizeMake(300, 300));

        

          }];

    /**表面红色view*/

    UIView *redView= [[UIView alloc]init];

    redView.backgroundColor = [UIColor redColor];

    [topView addSubview:redView];

    [redView mas_makeConstraints:^(MASConstraintMaker *make) {

       

        make.edges.equalTo(topView).with.insets(UIEdgeInsetsMake(10, 10, 10, 10));

        

    }];

    

    /**

     创建三个等宽等高等间距view

     */

    /**左边view*/

    UIView *leftView = [[UIView alloc]init];

    leftView.backgroundColor = [UIColor blueColor];

    [redView addSubview:leftView];

    /**右边view*/

    UIView *rightView = [[UIView alloc]init];

    rightView.backgroundColor = [UIColor brownColor];

    [redView addSubview:rightView];

    

    /**最有边view*/

    UIView *lastView = [[UIView alloc]init];

    lastView.backgroundColor = [UIColor yellowColor];

    [redView addSubview:lastView];

    

    CGFloat padding = 10.f;

    //左边view添加约束

    [leftView mas_makeConstraints:^(MASConstraintMaker *make) {

        make.centerY.mas_equalTo(redView.mas_centerY);

        make.left.equalTo(redView.mas_left).with.offset(padding);

        make.right.equalTo(rightView.mas_left).with.offset(-padding);

        make.height.mas_equalTo(@150);

        make.width.equalTo(rightView);

    }];

     //右边view添加约束

    [rightView mas_makeConstraints:^(MASConstraintMaker *make) {

       

        make.centerY.mas_equalTo(redView.mas_centerY);

        make.left.equalTo(leftView.mas_right).with.offset(padding);

        make.right.equalTo(lastView.mas_left).with.offset(-padding);

        

        make.height.mas_equalTo(@150);

        make.width.equalTo(lastView);

        

    }];

     //最右边view添加约束

    [lastView mas_makeConstraints:^(MASConstraintMaker *make) {

        

        make.centerY.mas_equalTo(redView.mas_centerY);

        make.left.equalTo(rightView.mas_right).with.offset(padding);

        make.right.equalTo(redView.mas_right).with.offset(-padding);

        make.width.equalTo(rightView);

        make.height.mas_equalTo(@150);

    }];

   }



- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

   

}



@end