Masonry recording--ios adaptation

Masonry is an iOS adaptation of the third-party library, the more useful one, I use not much, a simple understanding of some common methods, their own learning, record down mutual encouragement.

Masonry：
Https://github.com/SnapKit/Masonry

Example one: View Center processing

In any case, the view is in the center state

__weak typeof (self) weakself = self;

UIView * view = [UIView new];

View.backgroundcolor = [Uicolor Redcolor];

[Self.view Addsubview:view];

    // Adding a constraint using mas_makeconstraints

[View mas_makeconstraints:^ (Masconstraintmaker *make) {

// add size constraint ( make is the control you want to add the constraint to view,size is set the view size )

Make.size.mas_equalTo (Cgsizemake (100, 100));

// Add center constraint (centered with self , center set to center)

Make.center.equalTo (Weakself.view);

}];

Example two: A constraint between two view

Add a new view

UIView * Blackview = [UIView new];

Blackview.backgroundcolor = [Uicolor blackcolor];

[Self.view Addsubview:blackview];

Add a constraint to a black view

[Blackview mas_makeconstraints:^ (Masconstraintmaker *make) {

// Add size constraint (set black view size to 100,size to width)

Make.size.mas_equalTo (Cgsizemake (100, 100));

// add left, top margin constraints (both left and top constraints are 20,left.and.top to set both the left margin and margin )

Make.left.and.top.mas_equalTo (20);

}];

Masonry recording--ios adaptation