dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

gavrix

source ~/.bash_profile


hash oclint &> /dev/null
if [ $? -eq 1 ]; then
echo >&2 "oclint not found, analyzing stopped"
exit 1
fi

kerrishotts

// UIFont+Utility.h
// UIFont+Utility.[h|m] is (C) Kerri Shotts 2013, and released under an MIT license.

#import <UIKit/UIKit.h>

/**
 *
 * PKFontNormal = no modifications to the font; i.e., -Regular, -Roman, -Book, etc.
 * PKFontBold   = bold font desired (if possible); i.e., -Bold, -Black, -Heavy, etc.
 * PKFontItalic = italic font desired (if possible); i.e., -Italic, -Oblique, etc.

lexrus

http://devstreaming.apple.com/videos/wwdc/2013/710xfx3xn8197k4i9s2rvyb/710/710-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/202xdx2x47ezp1wein/202/202-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/200xdx2x35e1pxiinm/200/200-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/413xdx5x97itb5ek4yex3r7/413/413-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/612xax4xx65z1ervy5np1qb/612/612-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/221xex4xxohbllf4hblyngt/221/221-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/220xbx4xipaxfd1tggxuoib/220/220-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/711xcx4x8yuutk8sady6t9f/711/711-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/404xbx2xvp1eaaqonr8zokm/404/404-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/505xbx4xrgmhwby4oiwkrpp/505/505-HD.mov?dl=1

jmnavarro

func XCTAssertOptional(expression: @autoclosure () -> AnyObject?, _ message: String? = nil) {
	let evaluatedExpression:AnyObject? = expression()

	if evaluatedExpression == nil {
		if let messageValue = message {
			XCTFail(messageValue)
		}
		else {
			XCTFail("Optional asertion failed: \(evaluatedExpression)")
		}

chriseidhof

//
//  main.swift
//  Routes
//
//  Created by Chris Eidhof on 17/08/14.
//  Copyright (c) 2014 Chris Eidhof. All rights reserved.
//

import Foundation

guilhermearaujo

OCLint integration with Xcode

1. Integration

• Add a new Target of kind Aggregate, name it OCLint
• Under Builde Phases, add a new Run Script Phase
• Paste the script

2. Usage

• Select target OCLint
• Build the target (press ⌘+B)

nicklockwood

Thoughts on Swift 2 Errors

When Swift was first announced, I was gratified to see that one of the (few) philosophies that it shared with Objective-C was that exceptions should not be used for control flow, only for highlighting fatal programming errors at development time.

So it came as a surprise to me when Swift 2 brought (What appeared to be) traditional exception handling to the language.

Similarly surprised were the functional Swift programmers, who had put their faith in the Haskell-style approach to error handling, where every function returns an enum (or monad, if you like) containing either a valid result or an error. This seemed like a natural fit for Swift, so why did Apple instead opt for a solution originally designed for clumsy imperative languages?

I'm going to cover three things in this post:

WedgeSparda

#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>

@interface VisualizerView : UIView

@property (strong, nonatomic) AVAudioPlayer *audioPlayer;
@property (nonatomic, assign) NSInteger numberOfBars;

@end

krzyzanowskim

import Cocoa

// for-in
func checkForIn(array: [Int], dict: [Int: String]) {
    for num in array where dict[num] != nil {
        num
    }
}

checkForIn([1,2,3,4], dict: [1:"one", 2:"two"])