This is a snippet to show the difference between creating constraints with SKCore and creating constraints with the methods provided by Apple.

SKCoreLayout

// - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// -- Used By Both
// - - - - - - - - - - - - - - - - - - - - - - - - - - - -

NSDictionary *metrics = @{@"padding" : @(10.0),
                          @"headerHeight" : @(30.0),
                          @"rowHeight" : @(50.0),
                          @"boxSize" : @(110.0)};

NSDictionary *views = NSDictionaryOfVariableBindings(view1, view2, view3, view4, view5);

// - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// -- SKCore Way
// - - - - - - - - - - - - - - - - - - - - - - - - - - - -

[self beginConstraintsWithMetrics:metrics forViews:views];

[self addVFL:@"H:|-padding-[view1]-padding-|"];
[self addVFL:@"H:|-padding-[view5(==boxSize)]"];
[self addVFL:@"H:[view5]-padding-[view2]-padding-|"];
[self addVFL:@"H:[view5]-padding-[view3]-padding-|"];
[self addVFL:@"H:|-padding-[view4]-padding-|"];

// -- Vertical Layout
[self addVFL:@"V:[view1]-padding-[view5(==boxSize)]"];
[self addVFL:@"V:|-padding-[view1(==headerHeight)]-padding-[view2(==rowHeight)]-padding-[view3(==rowHeight)]-padding-[view4]-padding-|"];

[self.view addConstraints:[self endConstraints]];

// - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// -- Default Way
// - - - - - - - - - - - - - - - - - - - - - - - - - - - -

NSMutableArray *array = [NSMutableArray array];

[array addObjectsFromArray:[NSLayoutConstraint
                            constraintsWithVisualFormat:@"H:|-padding-[view1]-padding-|"
                            options:0
                            metrics:metrics
                            views:views]];

[array addObjectsFromArray:[NSLayoutConstraint
                            constraintsWithVisualFormat:@"H:|-padding-[view5(==boxSize)]"
                            options:0
                            metrics:metrics
                            views:views]];

[array addObjectsFromArray:[NSLayoutConstraint
                            constraintsWithVisualFormat:@"H:[view5]-padding-[view2]-padding-|"
                            options:0
                            metrics:metrics
                            views:views]];

[array addObjectsFromArray:[NSLayoutConstraint
                            constraintsWithVisualFormat:@"H:[view5]-padding-[view3]-padding-|"
                            options:0
                            metrics:metrics
                            views:views]];

[array addObjectsFromArray:[NSLayoutConstraint
                            constraintsWithVisualFormat:@"H:|-padding-[view4]-padding-|"
                            options:0
                            metrics:metrics
                            views:views]];

// -- Vertical Layout

[array addObjectsFromArray:[NSLayoutConstraint
                            constraintsWithVisualFormat:@"V:[view1]-padding-[view5(==boxSize)]"
                            options:0
                            metrics:metrics
                            views:views]];

[array addObjectsFromArray:[NSLayoutConstraint
                            constraintsWithVisualFormat:@"V:|-padding-[view1(==headerHeight)]-padding-[view2(==rowHeight)]-padding-[view3(==rowHeight)]-padding-[view4]-padding-|"
                            options:0
                            metrics:metrics
                            views:views]];

[self.view addConstraints:array];