一：masonry 基本用法

 

fistView=[[UIView alloc] init];    fistView.backgroundColor=[UIColor redColor];    [self.view addSubview:fistView];     secondView=[[UIView alloc] init];    secondView.backgroundColor=[UIColor blueColor];    [self.view addSubview:secondView];        threeView=[[UIView alloc] init];    threeView.backgroundColor=[UIColor yellowColor];    [self.view addSubview:threeView];            bottomView=[[UIView alloc] init];    bottomView.backgroundColor=[UIColor grayColor];    [self.view addSubview:bottomView];

基本约束布局代码

 

#pragma mark -第一种布局方法-(void)left_top_size_marign{        CGFloat padding =10;    CGFloat width=(self.view.bounds.size.width-4*padding)/3;        [fistView mas_makeConstraints:^(MASConstraintMaker *make) {            make.left.mas_equalTo(padding);        make.top.mas_equalTo(padding);        make.size.mas_equalTo(CGSizeMake(width, 100));            }];    [threeView mas_makeConstraints:^(MASConstraintMaker *make) {                make.left.mas_equalTo(padding*2+width);        make.top.mas_equalTo(padding);        make.size.mas_equalTo(CGSizeMake(width, 100));            }];            [threeView mas_makeConstraints:^(MASConstraintMaker *make) {                make.left.mas_equalTo(padding*3+width*2);        make.top.mas_equalTo(padding);        make.size.mas_equalTo(CGSizeMake(width, 100));            }];            }

 

二：masonry 相对于子View布局

CGFloat padding =10;    CGFloat width=(self.view.bounds.size.width-4*padding)/3;        [fistView mas_makeConstraints:^(MASConstraintMaker *make) {        make.left.mas_equalTo(padding);        make.top.mas_equalTo(padding);        make.size.mas_equalTo(CGSizeMake(width, 100));    }];        [secondView mas_makeConstraints:^(MASConstraintMaker *make) {        make.left.mas_equalTo(fistView.mas_right).offset(padding);        make.size.top.mas_equalTo(fistView);    }];        [threeView mas_makeConstraints:^(MASConstraintMaker *make) {        make.left.mas_equalTo(secondView.mas_right).offset(padding);        make.size.top.mas_equalTo(secondView);            }];

 

三：masonry内边距布局

//内边距    [paddingView mas_makeConstraints:^(MASConstraintMaker *make) {               make.edges.equalTo(fistView).insets(UIEdgeInsetsMake(5, 5, 5, 5));            }];

 

四：UILable 多行布局

lb=[[UILabel alloc] init];    lb.text=@"ication:didReceiveRemoteNotification:fetchCompletionHandler:], but you still need to add remote-notification to the list of your supported";    [self.view addSubview:lb];---------//label多行    lb.preferredMaxLayoutWidth=self.view.width-20;        lb.numberOfLines=0;    [lb mas_makeConstraints:^(MASConstraintMaker *make) {               make.top.mas_equalTo(bottomView.mas_bottom).offset(5);        make.left.mas_equalTo(10);        make.right.mas_equalTo(-10);                            }];

 五：masonry动画更新

-(void)touchesBegan:(NSSet
     
       *)touches withEvent:(UIEvent *)event{        if(flag){                CGFloat padding =10;        CGFloat width=(self.view.bounds.size.width-4*padding)/3;                [fistView mas_updateConstraints:^(MASConstraintMaker *make) {            make.left.mas_equalTo(padding);            make.top.mas_equalTo(padding);            make.size.mas_equalTo(CGSizeMake(width, 100));        }];                    }    else{                [fistView mas_updateConstraints:^(MASConstraintMaker *make) {            make.left.mas_equalTo(5);            make.top.mas_equalTo(5);            make.size.mas_equalTo(CGSizeMake(200, 200));        }];    }        flag=!flag;        [UIView animateWithDuration:0.25 animations:^{       //        [self.view layoutIfNeeded];            } completion:^(BOOL finished) {            }];        }