👨‍💻

Maciej Piotrowski maciejpiotrowski89

👨‍💻

https://speakerdeck.com/paciej00

maciejpiotrowski89 / String+deletingPrefix.swift

Created October 27, 2022 11:23

	extension String {
	func deletingPrefix(_ prefix: String) -> String {
	guard hasPrefix(prefix) else { return self }
	return String(dropFirst(prefix.count))
	}
	}

maciejpiotrowski89 / EnvironementVariables.swift

Created May 28, 2020 13:00

	let processInfo = ProcessInfo.processInfo
	let environment = processInfo.environment
	guard let environment["KEY"] else { return }

maciejpiotrowski89 / swiftui_drawingAnimationCurves.swift

Last active May 26, 2020 07:55

	//
	// ContentView.swift
	// AdditiveAnimations
	//
	// Created by Chris Eidhof on 10.10.19.
	// Copyright © 2019 Chris Eidhof. All rights reserved.
	// https://github.com/objcio/S01E174-animation-curves/blob/master/AnimationCurves/ContentView.swift

	import SwiftUI

maciejpiotrowski89 / swiftui_shake.swift

Last active November 15, 2020 06:20

Shake Animation in SwiftUI from objc.io swift talks

	//
	// ContentView.swift
	// Layers
	//
	// Created by Chris Eidhof on 09.10.19.
	// Copyright © 2019 Chris Eidhof. All rights reserved.
	// https://github.com/objcio/S01E173-building-a-shake-animation/blob/master/Shake/ContentView.swift

	import SwiftUI

maciejpiotrowski89 / DispatcherStub.swift

Last active May 12, 2020 17:08

Simplified `DispatcherStub` for unit testing asynchronous code ([link to blog post](https://swifting.io/blog/2018/03/03/50-synchronous-unit-tests/))

	protocol Dispatching {
	func dispatch(_ work: @escaping ()->Void)
	}

	final class DispatcherStub: Dispatching {
	func dispatch(_ work: @escaping ()->Void) {
	work()
	}
	}

maciejpiotrowski89 / Selector+Extension.swift

Created November 17, 2018 13:29

	fileprivate extension Selector {
	static let doStuff = #selector(ViewController.doStuff)
	}

maciejpiotrowski89 / HeaderDoc.m

Created July 2, 2018 03:51

maciejpiotrowski89 / performanceMeasure.swift

Created June 15, 2018 06:51

	@discardableResult
	func measure<A>(name: String = "", _ block: () -> A) -> A {
	let startTime = CACurrentMediaTime()
	let result = block()
	let timeElapsed = CACurrentMediaTime() - startTime
	print("Time: \(name) - \(timeElapsed)")
	return result
	}

maciejpiotrowski89 / lldb tricks.swift

Created March 8, 2018 08:31

	(lldb) expr -l Swift -- import UIKit
	(lldb) expr -l Swift -- let $pin = unsafeBitCast(0x7df67c50, to: MKPinAnnotationView.self)
	(lldb) expr -l Swift -- print($pin.alpha)

	//https://stackoverflow.com/questions/29441418/lldb-swift-casting-raw-address-into-usable-type

maciejpiotrowski89 / UIView+UIImage.m

Created January 31, 2018 07:42

Draw UIImage from UIView

	- (UIImage *)image {
	UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, 0.0);
	[self.layer renderInContext:UIGraphicsGetCurrentContext()];
	UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
	UIGraphicsEndImageContext();
	return image;
	}