Tulakshana’s gists

Tulakshana / File.swift

Created December 17, 2018 17:32

A helper function to update the modified date of a file

	static func update(modifiedDate: Date, url: URL) {
	do {
	var values = try url.resourceValues(forKeys: [URLResourceKey.contentModificationDateKey])
	values.contentModificationDate = modifiedDate
	try url.setResourceValues(values)
	} catch {
	print(error.localizedDescription)
	}
	}

Tulakshana / Data+File.swift

Created November 14, 2018 23:38

An extension for Data to get the file extension

	extension Data {
	private static let mimeTypeSignatures: [UInt8 : String] = [
	0xFF : "image/jpeg",
	0x89 : "image/png",
	0x47 : "image/gif",
	0x49 : "image/tiff",
	0x4D : "image/tiff",
	0x25 : "application/pdf",
	0xD0 : "application/vnd",
	0x46 : "text/plain",

Tulakshana / Beacon.swift

Last active October 11, 2018 22:31

Using this class you can make an iPhone behave like an iBeacon :)

	import Foundation
	import CoreBluetooth
	import CoreLocation

	class Beacon: NSObject {

	static let shared = Beacon()

	var localBeacon: CLBeaconRegion!
	var beaconPeripheralData: [String: AnyObject]?

Tulakshana / CustomSlider.swift

Last active October 9, 2024 07:20

A subclass of UISlider which has a tool tip indicating the current value of the slider.

	import UIKit

	class CustomSlider: UISlider {

	private var toolTip: ToolTipPopupView?

	override func awakeFromNib() {
	super.awakeFromNib()

	self.initToolTip()

Tulakshana / MovieTransitionsVC.swift

Last active October 14, 2024 18:43 — forked from SheffieldKevin/movietransitions.swift

Make a movie with transitions with AVFoundation and swift. Add an UIActivityIndicatorView and an UIButton and connect appropriately. You will also need to attach few videos to the project.

	//
	// MovieTransitionsVC.swift
	// VideoAnimations
	//
	// Created by Tula on 2018-06-14.
	// Copyright © 2018 Tula. All rights reserved.
	//

	import UIKit
	import AVFoundation

Tulakshana / ExitHandler.swift

Created May 11, 2018 21:50

Experimental code to exit an iOS app.

	@IBAction func btnExit0Tapped (sender: UIButton) {
	exit(0) // Not recommended by Apple https://developer.apple.com/library/content/qa/qa1561/_index.html and app crashes
	}

	@IBAction func btnSuspendTapped (sender: UIButton) {
	UIControl().sendAction(#selector(URLSessionTask.suspend), to: UIApplication.shared, for: nil) // App exits gracefully
	}

	@IBAction func btnFatalErrorTapped (sender: UIButton) {
	fatalError() // App will crash

Tulakshana / StringReplace.swift

Last active November 22, 2017 15:55

This String extension contains a convenient method to replace characters in a CharacterSet with a given String.

	func stringByReplacing(charSet: CharacterSet, with string: String) -> String {
	let components = self.components(separatedBy: charSet)
	return components.joined(separator: string)
	}

Tulakshana / UIViewFirstResponder.swift

Created November 16, 2017 10:25

An UIView extension with a method to return the frame of the first responder.

	extension UIView {

	func frameOfFirstResponder() -> CGRect? {
	if self.isFirstResponder {
	return self.frame
	}
	for view in self.subviews {
	if let frame = view.frameOfFirstResponder() {
	return frame
	}

Tulakshana / CustomButton.swift

Created November 13, 2017 12:55

A custom UIButton which could have different background colours for enabled and disabled states.

	class CustomButton: UIButton {
	@IBInspectable private var enabledBackgroundColor: UIColor?
	@IBInspectable private var disabledBackgroundColor: UIColor?

	override var isEnabled: Bool {
	set {
	if newValue {
	self.backgroundColor = enabledBackgroundColor
	} else {
	self.backgroundColor = disabledBackgroundColor

Tulakshana / AttribManipulator.swift

Last active October 17, 2017 13:09

A convenience method create an attributed string from a plain html string and apply a font of your choice. The method could be modified to support any fonts and styles.

	enum FontName: String {
	case timesNewRoman = "TimesNewRomanPSMT"
	case timesNewRomanItalic = "TimesNewRomanPS-ItalicMT"
	case timesNewRomanBold = "TimesNewRomanPS-BoldMT"
	}

	extension UIFont {

	class var sanFranciscoRegular: UIFont {
	if let font = UIFont.init(name: "SFUIText-Regular", size: 15) {

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