bittz’s gists

bittz / QuadPageControl.swift

Last active February 12, 2023 16:42

UIPageControl with square dots having custom size (hack).

	import UIKit

	class QuadPageControl: UIPageControl {
	override func layoutSubviews() {
	super.layoutSubviews()

	guard !subviews.isEmpty else { return }

	let spacing: CGFloat = 3

bittz / UIImage+Snapshot.swift

Created August 24, 2016 10:10

UIImage from UIView.

	import UIKit

	extension UIImage {
	static func imageFromView(view: UIView) -> UIImage {
	UIGraphicsBeginImageContextWithOptions(view.bounds.size, view.opaque, 0)
	view.drawViewHierarchyInRect(view.bounds, afterScreenUpdates: true)
	let image = UIGraphicsGetImageFromCurrentImageContext()
	UIGraphicsEndImageContext()
	return image
	}

bittz / UIImage+Placeholder.swift

Created August 22, 2016 14:41

Shorthand for creating empty (black) UIImage.

	import UIKit

	extension UIImage {
	static func placeholder(size: CGSize) -> UIImage {
	UIGraphicsBeginImageContext(size)

	let context = UIGraphicsGetCurrentContext()
	CGContextSetRGBFillColor(context, 0, 0, 0, 1)
	CGContextFillRect(context, CGRectMake(0, 0, size.width, size.height))

bittz / CustomURLCache.swift

Created August 22, 2016 14:34

Custom NSURLCache for web services which don't provide expiration info.

	import Foundation

	class CustomURLCache: NSURLCache {

	let createdAtKey = "CreatedAt"

	override func cachedResponseForRequest(request:NSURLRequest) -> NSCachedURLResponse? {
	let cachedResponse = expiredCachedResponseForRequest(request)

	if cachedResponse == nil {

bittz / String+Titleized.swift

Created August 22, 2016 14:06

String with the first letter written uppercase.

	import Foundation

	extension String {
	var titleizedString: String {
	return String(characters.prefix(1)).uppercaseString + String(characters.dropFirst())
	}
	}

bittz / UIViewController+Alert.swift

Last active August 31, 2016 08:17

Present basic alert with UIViewController.

	import UIKit

	extension UIViewController {
	func presentAlert(message: String) {
	if presentedViewController == nil {
	let alertController = UIAlertController(title: nil, message: message, preferredStyle: .Alert)

	let alertAction = UIAlertAction(title: "OK", style: .Default, handler: nil)
	alertController.addAction(alertAction)

bittz / SKNodeExtension.swift

Last active August 22, 2016 14:07

Remove SKNode children whose names match the search parameter.

	import SpriteKit

	extension SKNode {
	public func removeChildrenWithName(name: String) {
	enumerateChildNodesWithName(name) { (node, stop) -> Void in
	node.removeFromParent()
	}
	}
	}

bittz / CoreGraphics+Geometry.swift

Last active April 16, 2024 10:27

Convert degrees to radians / radians to degrees in Swift.

	import CoreGraphics

	func degreesToRadians(degrees: CGFloat) -> CGFloat {
	return degrees * CGFloat(M_PI) / 180
	}

	func radiansToDegress(radians: CGFloat) -> CGFloat {
	return radians * 180 / CGFloat(M_PI)
	}

bittz / CGSizeExtension.swift

Last active March 21, 2016 13:10

Square CGSize

Michał Mosiołek bittz