Svein Halvor Halvorsen sveinhal

☕

Writing code

I like to make stuff. I like people and technology. By corollary, I like the Internet. Co-founder and developer at @finkoslo. Currently at FeltGIS

sveinhal / RandomDecoder.swift

Created November 14, 2019 14:27

	// RandomDecoder.swift
	// Utils
	//
	// Created by Svein Halvor Halvorsen on 24/10/2019.

	import Foundation

	protocol RandomInstantiable {
	static func randomInstance<G: RandomNumberGenerator>(using: inout G) -> Self
	}

sveinhal / AnySequence.swift

Last active June 13, 2016 15:17

	struct AnyGenerator<Element>: GeneratorType {
	init<G: GeneratorType where G.Element == Element>(_ gen: G) {
	var gen = gen
	self._next = { gen.next() }
	}
	private let _next: () -> Element?
	func next() -> Element? {
	return _next()
	}
	}

sveinhal / PageControl.swift

Created August 28, 2015 11:11

A page control subclass with customizable dots

	import UIKit

	@IBDesignable
	final class PageControl: UIPageControl {

	@IBInspectable var activeImage: UIImage?
	@IBInspectable var inactiveImage: UIImage?

	private func updateDotImages() {
	for (i, subview) in enumerate(subviews) {

sveinhal / PairSequence.swift

Last active August 29, 2015 14:24

A sequence type that iterates over pairs of the underlying sequence

	import Foundation

	struct PairGenerator<T: GeneratorType> : GeneratorType {
	typealias Pair = (first: T.Element?, second: T.Element?)
	var baseGenerator: T
	var previousPair: Pair
	init(_ baseGenerator: T) {
	self.baseGenerator = baseGenerator
	self.previousPair = (nil, nil)
	}

sveinhal / Implementation.swift

Created July 2, 2015 10:50

How to implement an Obj-C protocol with custom getter name in Swift

	class SomeClass: SomeProtocol {

	private var _enabled: Bool = false
	var enabled: Bool {
	@objc(isEnabled) get { return _enabled }
	set { _enabled = newValue }
	}

	}

sveinhal / SlideOutTransitioning.swift

Created June 24, 2015 08:46

	import UIKit

	class SlideOutTransitioning: NSObject, UIViewControllerTransitioningDelegate, UIViewControllerAnimatedTransitioning {

	private var presenting: Bool = false
	private let duration = 0.3

	func animationControllerForPresentedController(presented: UIViewController, presentingController presenting: UIViewController, sourceController source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
	self.presenting = true
	return self