Masonry 布局 基本操作 小结

 1 /**
 2  *  Creates a MASConstraintMaker with the callee view.
 3  *  Any constraints defined are added to the view or the appropriate superview once the block has finished executing
 4  *
 5  *  @param block scope within which you can build up the constraints which you wish to apply to the view.
 6  *
 7  *  @return Array of created MASConstraints
 8  */
 9 - (NSArray *)mas_makeConstraints:(void(^)(MASConstraintMaker *make))block;
10 
11 /**
12  *  Creates a MASConstraintMaker with the callee view.
13  *  Any constraints defined are added to the view or the appropriate superview once the block has finished executing.
14  *  If an existing constraint exists then it will be updated instead.
15  *
16  *  @param block scope within which you can build up the constraints which you wish to apply to the view.
17  *
18  *  @return Array of created/updated MASConstraints
19  */
20 - (NSArray *)mas_updateConstraints:(void(^)(MASConstraintMaker *make))block;
21 
22 /**
23  *  Creates a MASConstraintMaker with the callee view.
24  *  Any constraints defined are added to the view or the appropriate superview once the block has finished executing.
25  *  All constraints previously installed for the view will be removed.
26  *
27  *  @param block scope within which you can build up the constraints which you wish to apply to the view.
28  *
29  *  @return Array of created/updated MASConstraints
30  */
31 - (NSArray *)mas_remakeConstraints:(void(^)(MASConstraintMaker *make))block;

1  [myView mas_makeConstraints:^(MASConstraintMaker *make) {
2         make.top.equalTo(self.view.mas_top).with.offset(64);//上
3         make.left.equalTo(self.view.mas_left);    //左
4         make.right.equalTo(self.view.mas_right);//右
5         make.bottom.equalTo(self.view.mas_bottom);//下
6     }];