masonry中的make,remake,update
- (void)viewDidLoad { [super viewDidLoad]; self.navigationController.navigationBar.translucent = NO; UIView * redView = [[UIView alloc] init]; redView.backgroundColor = [UIColor redColor]; [self.view addSubview:redView]; self.redView = redView; [redView mas_makeConstraints:^(MASConstraintMaker *make) { make.leading.equalTo(self.view); make.trailing.equalTo(self.view); make.top.equalTo(self.view); make.height.equalTo(@30); }]; // [self make]; [self update]; // [self remake]; } -(void)make{ // 之前已经设置了,再次make,无效 [self.redView mas_makeConstraints:^(MASConstraintMaker *make) { make.leading.equalTo(self.view); make.trailing.equalTo(self.view); make.top.equalTo(self.view); make.height.equalTo(@90); }]; } -(void)update{ //更新,之前有的没有更改的约束会保留,有变动的,更新约束 [self.redView mas_updateConstraints:^(MASConstraintMaker *make) { make.leading.equalTo(self.view).with.offset(50); // make.trailing.equalTo(self.view); // make.top.equalTo(self.view); make.height.equalTo(@90); }]; } -(void)remake{ //全部约束都再来设置,不会用之前有的,删除之前的约束,用心约束 [self.redView mas_remakeConstraints:^(MASConstraintMaker *make) { make.leading.equalTo(self.view).with.offset(50); make.trailing.equalTo(self.view); make.top.equalTo(self.view); make.height.equalTo(@90); }]; }