iOS masonry动态约束控件位置

#import "FourViewController.h"

#import "View+MASAdditions.h"

#import "FiveViewControllerr.h"

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

#define SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width

static NSString const*[email protected]"FourViewController";

static NSString const*[email protected]"FourViewController";

@interface FourViewController ()

@property (strong, nonatomic)  UIButton *move;

@property (strong, nonatomic)  UIButton *back;

@property (strong, nonatomic)  UIImageView *imageView;

@property (assign, nonatomic) int s;

@end

@implementation FourViewController

+ (instancetype)createViewControllerWithStoryboard:(id)createArgs{

    UIStoryboard *storyboard=[UIStoryboard storyboardWithName:(NSString *)kStoryboardName bundle:nil];

    FourViewController *vc=[storyboard instantiateViewControllerWithIdentifier:(NSString *)kIdentifier];

    return vc;

}

- (void)viewDidLoad {

    [super viewDidLoad];

    [self initRightItem];

    _s=10;

    [self initFirstContraints];

}

- (void)initFirstContraints{

    //WS(ws);

//    UIView *view=[UIView new];

//    view.backgroundColor=[UIColor brownColor];

//    [self.view addSubview:view];

//    [view mas_makeConstraints:^(MASConstraintMaker *make) {

//        make.left.equalTo(self.view).with.offset(0);

//        make.size.mas_equalTo(CGSizeMake([UIScreen mainScreen].bounds.size.width,[UIScreen mainScreen].bounds.size.height));

//    }];

    //int width=([UIScreen mainScreen].bounds.size.width-_s*2-10)/2;

    _move=[[UIButton alloc]init];

    _move.backgroundColor=[UIColor blueColor];

    [self.view addSubview:_move];

    [_move mas_makeConstraints:^(MASConstraintMaker *make) {

        make.left.equalTo(self.view).with.offset(_s);

        make.top.equalTo(self.view).with.offset(100);

        make.width.equalTo(@150);

        make.height.equalTo(@40);

    }];

    [_move addTarget:self action:@selector(moveFrame) forControlEvents:UIControlEventTouchUpInside];

    [_move setTitle:@"移动图片" forState:UIControlStateNormal];

    _back=[[UIButton alloc]init];

    _back.backgroundColor=[UIColor greenColor];

    [self.view addSubview:_back];

    [_back mas_makeConstraints:^(MASConstraintMaker *make) {

        make.right.equalTo(self.view).with.offset(-_s);

        make.top.equalTo(self.view).with.offset(100);

        make.width.equalTo(@150);

        make.height.equalTo(@40);

    }];

    [_back addTarget:self action:@selector(backFrame) forControlEvents:UIControlEventTouchUpInside];

    [_back setTitle:@"图片回来" forState:UIControlStateNormal];

    _imageView=[[UIImageView alloc]init];

    _imageView.image=[UIImage imageNamed:@"move"];

    [self.view addSubview:_imageView];

    [_imageView mas_makeConstraints:^(MASConstraintMaker *make) {

        make.left.equalTo(self.view).with.offset(_s);

        make.top.equalTo(self.view).with.offset(200);

        make.width.equalTo(@150);

        make.height.equalTo(@150);

    }];

}

- (void)moveFrame{

    _s=_s+5;;

    NSLog(@"_s:%d",_s);

    [_imageView mas_updateConstraints:^(MASConstraintMaker *make) {

        make.left.equalTo(self.view).with.offset(_s);

        make.top.equalTo(self.view).with.offset(200+_s);

        make.width.equalTo(@150);

        make.height.equalTo(@150);

    }];

}

- (void)backFrame{

    _s=_s-5;;

    NSLog(@"_s:%d",_s);

    [_imageView mas_updateConstraints:^(MASConstraintMaker *make) {

        make.left.equalTo(self.view).with.offset(_s);

        make.top.equalTo(self.view).with.offset(200-_s);

        make.width.equalTo(@150);

        make.height.equalTo(@150);

    }];

}

- (void)initRightItem{

    [self setTitle:@"动态改变控件位置"];

    UIBarButtonItem *right=[[UIBarButtonItem alloc]initWithTitle:@"多约束" style:UIBarButtonItemStylePlain target:self action:@selector(right)];

    self.navigationItem.rightBarButtonItem=right;

}

- (void)right{

    FiveViewControllerr *vc=[FiveViewControllerr createViewControllerWithStoryboard:nil];

    [self.navigationController pushViewController:vc animated:YES];

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

}