Skip to content

Instantly share code, notes, and snippets.

@jspahrsummers
jspahrsummers / GHRunLoopWatchdog.h
Created January 28, 2015 20:50
A class for logging excessive blocking on the main thread
/// Observes a run loop to detect any stalling or blocking that occurs.
///
/// This class is thread-safe.
@interface GHRunLoopWatchdog : NSObject
/// Initializes the receiver to watch the specified run loop, using a default
/// stalling threshold.
- (id)initWithRunLoop:(CFRunLoopRef)runLoop;
/// Initializes the receiver to detect when the specified run loop blocks for
@andymatuschak
andymatuschak / MultiDirectionAdjudicatingScrollView.swift
Created January 26, 2015 19:31
Source for the Khan Academy app's unusual scrolling interactions
//
// MultiDirectionAdjudicatingScrollView.swift
// Khan Academy
//
// Created by Andy Matuschak on 12/16/14.
// Copyright (c) 2014 Khan Academy. All rights reserved.
//
import UIKit
import UIKit.UIGestureRecognizerSubclass
@andymatuschak
andymatuschak / gist:2b311461caf740f5726f
Created December 28, 2014 18:17
A pragmatic and intentionally non-abstract solution to JSON decoding / initialization that doesn't require learning about five new operators.
struct User {
let id: Int
let name: String
let email: String?
}
extension User: JSONDecodable {
static func create(id: Int, name: String, email: String?) -> User {
return User(id: id, name: name, email: email)
}
@rnystrom
rnystrom / iOS @3x assets script
Created November 26, 2014 01:52
Save this shell script to generate @2x and 1x PNG assets for your apps. Requires Imagemagick (http://www.imagemagick.org/). These will probably look shitty and blurred.
#!/bin/sh
# Example usage
# cd into directory that has @3x images
# ./whatever-you-name-this.sh
# Remember to chmod +x the script
resize () {
ls *@3x.png | awk '{print("convert "$1" -filter box -resize '$1' "$1)}' | sed 's/@3x/'$2'/2' | /bin/sh
}
@chriseidhof
chriseidhof / LICENSE
Last active October 30, 2025 15:50
A tiny networking library
Copyright 2015 Chris Eidhof
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHE
@chriseidhof
chriseidhof / :(
Created November 4, 2014 10:41 — forked from kostiakoval/:(
import Foundation
import ImageIO
infix operator >>= { associativity left }
func >>=<A,B>(l: A?, r: A -> B?) -> B? {
if let x = l {
return r(x)
}
return nil
@rnapier
rnapier / gist:0f5611d0bf89a9645713
Last active August 29, 2015 14:05
Version 3 of Functional Wish Fulfillment
//
// Version 3 of pagesFromData from Functional Wish Fulfillment
// http://robnapier.net/functional-wish-fulfillment
//
import Foundation
func pagesFromData(data: NSData) -> Result<[Page]> {
return continueWith(asJSON(data)) {
continueWith(asJSONArray($0)) {
@wkjagt
wkjagt / audio-book-reader.md
Last active December 2, 2025 04:10
How I built an audio book reader for my nearly blind grandfather

#How I built an audio book reader for my nearly blind grandfather

Tweet this - Follow me

Last year, when visiting my family back home in Holland, I also stopped by my grand-parents. My grand-father, now 93 years old, had always been a very active man. However, during the presceding couple of months, he'd gone almost completely blind and now spent his days sitting in a chair. Trying to think of something for him to do, I suggested he try out audio books. After finally convincing him -- he said audio books were for sad old people -- that listening to a well performed recording is actually a wonderful experience, I realized the problem of this idea.

####The problem with audio devices and the newly blind. After my first impulse to jump up and go buy him an

@staltz
staltz / introrx.md
Last active December 1, 2025 11:31
The introduction to Reactive Programming you've been missing
#!/Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -i -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk
import Foundation
class JSON {
struct Path: Printable {
enum Element {
case Index(Int)
case Key(String)