README.md

∫ Integral Swift AutoLayout

An attempt to simplify creating AutoLayout constraints.

This package includes two approaches: Extensions and Custom Opterators.

WARNING: It's still WIP and mostly untested.

Extensions

Simplifying the API by removing the redundant (arumgent)names:

// BEFORE
view.topAnchor.constraint(equalTo: other.topAnchor, constant: 5.0)

// AFTER
view.topAnchor.equalTo(other.topAnchor, 5.0)

Custom Operators

A more visual approach: anchor <assignment> (anchor or expression)

Assignment (Dimension/ X-Axis / Y-Axis)

Operator	Equivalent
|==|	equalTo...
|<=|	lessThanOrEqualTo...
|>=|	greaterThanOrEqualTo...)

Assignment (X-Axis / Y-Axis)

Operator	Equivalent
|=~|	equalToSystemSpacing...
|<~|	lessThanOrEqualToSystemSpacing...
|>~|	greaterThanOrEqualToSystemSpacing...)

Expressions

Operator	Equivalent
+	Constant (right-side only)
-	Negative constant (right-side only)
*	Multiplier (left-side only)

Priority / Identifier

Operator	Right-hand-side type	Action
~~	UILayoutPriorty/Float	Sets .priority
~~	String	Sets .identifier

Examples

// BEFORE

let constraint = left.rightAnchor.constraint(equalsTo: right.leftAnchor, constant: 8.0)
constraint.priority = .required
constraint.identifier = "Left-To-Right"

// AFTER
let constraint = left.rightAnchor |==| right.leftAnchor + 8.0 ~~ .required ~~ "Left-To-Right"

Licence

MIT. See LICENSE.md