wh1pch81n’s gists

wh1pch81n / gist:0308d740af16ae0e73e5716778fb0771

Last active February 12, 2017 15:42

	class ViewController: UIViewController {

	var customizerObject: SpecialProtocol?

	override func viewDidLoad() {
	super.viewDidLoad()

	specialMethod()

	}

wh1pch81n / gist:f69238308366d42b8113bb5c72f5f499

Last active February 12, 2017 15:31

	class ViewController: UIViewController {
	override func viewDidLoad() {
	super.viewDidLoad()

	specialMethod()

	}

	func specialMethod() {
	// overridable method

wh1pch81n / programmaticallyTap.swift

Created February 9, 2017 02:22

A little extension that lets you "tap" a UIBarButtonItem programmatically

	extension UIBarButtonItem {
	public func programmaticallyTap() {
	if let target = target
	, let action = action
	{
	target.value(forKey: NSStringFromSelector(action))
	}
	}
	}

wh1pch81n / enumstring_as_class.swift

Created January 7, 2017 19:33

NS_ENUM_STRING ports a struct with static strings. This means between objc and swift you have to learn how to read both versions of it which can be confusing. It is much better to have a more consistent api between both. Therefore you can use a class.

	func ==(lhs: EnumString, rhs: String) -> Bool {
	return lhs.isEqual(rhs)
	}

	func ==(lhs: String, rhs: EnumString) -> Bool {
	return rhs.isEqual(lhs)
	}

	class EnumString: NSObject {
	let rawValue: String

wh1pch81n / concatenating_errors.swift

Last active January 7, 2017 17:28

What is one trick you can do to avoid the do-catch pyramid of doom? you can return "try method()"

	enum ErrorEnum: Error {
	case FooError
	case BarError
	}

	func bar(success: Bool) throws -> String {
	if success {
	return "bar success"
	}
	throw ErrorEnum.BarError

wh1pch81n / SwiftyNotification_CenterImplementation_Extension.swift

Last active December 31, 2016 03:55

	// 1
	public struct SwiftyNotificationCenter {}

	// ...

	// extended somewhere else in your code base
	// 2
	extension SwiftyNotificationCenter {
	static var buttonNotification = SwiftyNotification<String, String, Int>()
	static var anotherNotification = SwiftyNotification<String, UIColor, Bool>()

wh1pch81n / SwiftyNotification_InAction.swift

Created December 31, 2016 03:27

	// 1
	var buttonNotification = SwiftyNotification<String, String, Int>()

	// 2
	buttonNotification.add(subscriber: self) { (info, n) in
	// 3
	print(info)
	// 4
	n = 8
	}

wh1pch81n / WhyAutoLayout_rgbviews_dhconstraintbuilder.swift

Created December 28, 2016 21:23

	// DHConstraintBuilder

	//1
	view_cb.addConstraints(() \|-^ greenView_cb ^-^ 15.5 ^-^ redView_cb ^-\| ()).H

	//2
	view_cb.addConstraints(() \|-^ blueView_cb ^-\| ()).H

	//3
	view_cb.addConstraints(() \|-^ greenView_cb ^-^ blueView_cb ^-\| ()).V

wh1pch81n / WhyAutoLayout_rgbview_visualformat.swift

Last active December 28, 2016 21:29

	// NSLayoutConstraint

	// Given an array of 3 views
	let viewArray = [
	greenView_vf,
	redView_vf,
	blueView_vf
	]
	// set this value to false to make auto layout work
	viewArray.forEach({ $0.translatesAutoresizingMaskIntoConstraints = false })

wh1pch81n / WhyAutoLayout_viewGapView.swift

Last active December 28, 2016 20:34

	// Adding a vertical constraint between view1 and view2 using default padding

	// DHConstraintBuilder
	parentView.addConstraints(view1 ^-^ view2).V

	// NSLayoutConstraints
	parentView.translatesAutoresizingMaskIntoConstraints = false
	parentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:[view1]-[view2]"
	, options: NSLayoutFormatOptions(rawValue: 0)
	, metrics: nil, views: ["view1": view1, "view2": view2]))