spr

//
//  ExampleDelegate.h
//  Example
//
//  Created by Scott Robertson on 2/10/13.
//  Copyright (c) 2013 Scott Robertson. All rights reserved.
//

#import <Foundation/Foundation.h>

mchirico

/*
You need to import EventKit

import EventKit

*/
    @IBAction func buttonCalendar(sender: AnyObject) {
        
        var eventStore : EKEventStore = EKEventStore()
        // 'EKEntityTypeReminder' or 'EKEntityTypeEvent'

MihaelIsaev

//
//  HMAC.swift
//
//  Created by Mihael Isaev on 21.04.15.
//  Copyright (c) 2014 Mihael Isaev inc. All rights reserved.
//
// ***********************************************************
//
// How to import CommonCrypto in Swift project without Obj-c briging header
//

ratulSharker

#import <Foundation/Foundation.h>

@interface UDPEchoClient : NSObject

- (BOOL) sendData:(const char *)msg;

@end

zwaldowski

//
//  Activity.swift
//
//  Created by Zachary Waldowski on 8/21/16.
//  Copyright © 2016 Zachary Waldowski. Licensed under MIT.
//

import os.activity

private final class LegacyActivityContext {

nitrag

//
//  Screenshot.swift
//
// 1) Take a picture of a UIView
// 2) Take a picture of a UIView's subframe. EG. Fullscreen UIView with a
//     small square box in the middle, it will only save what's visible in the box frame
//     but not the box itself

import Foundation
import UIKit

tclementdev

libdispatch efficiency tips

The libdispatch is one of the most misused API due to the way it was presented to us when it was introduced and for many years after that, and due to the confusing documentation and API. This page is a compilation of important things to know if you're going to use this library. Many references are available at the end of this document pointing to comments from Apple's very own libdispatch maintainer (Pierre Habouzit).

My take-aways are:

• You should create very few, long-lived, well-defined queues. These queues should be seen as execution contexts in your program (gui, background work, ...) that benefit from executing in parallel. An important thing to note is that if these queues are all active at once, you will get as many threads running. In most apps, you probably do not need to create more than 3 or 4 queues.

• Go serial first, and as you find performance bottle necks, measure why, and if concurrency helps, apply with care, always validating under system pressure. Reuse

stinger

import Foundation
import Combine

enum APIError: Error, LocalizedError {
    case unknown, apiError(reason: String)

    var errorDescription: String? {
        switch self {
        case .unknown:
            return "Unknown error"

martinheld

GraphQL introspection query via curl

cat introspection_query.json

{ 
  "query": "query IntrospectionQuery {
      __schema {
        queryType { name }
        mutationType { name }

swiftui-lab

//------------------------------------------------------------------------
// The SwiftUI Lab: Advanced SwiftUI Animations
// https://swiftui-lab.com/swiftui-animations-part1 (Animating Paths)
// https://swiftui-lab.com/swiftui-animations-part2 (GeometryEffect)
// https://swiftui-lab.com/swiftui-animations-part3 (AnimatableModifier)
//------------------------------------------------------------------------
import SwiftUI

struct ContentView: View {