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@steipete
steipete / PSPDFUIKitMainThreadGuard.m
Last active May 27, 2024 12:11
This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…
// Taken from the commercial iOS PDF framework http://pspdfkit.com.
// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
// Licensed under MIT (http://opensource.org/licenses/MIT)
//
// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.
// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit.
#import <objc/runtime.h>
#import <objc/message.h>
@jarsen
jarsen / NSArrayMagic.m
Last active July 24, 2018 09:22
How to do lots of cool things with NSArray. Inspired by NSHipster and WWDC 2013 Session 228 - "Hidden Gems in Cocoa and Cocoa Touch"
NSArray *albums = @[[Album albumWithName:@"Random Access Memories" price:9.99f],
[Album albumWithName:@"Clarity" price:6.99f],
[Album albumWithName:@"Weekend in America" price:7.99f],
[Album albumWithName:@"Weekend in America" price:7.90f],
[Album albumWithName:@"Bangarang EP" price:2.99f]];
// Reversing an Array
__unused NSArray *reversed = albums.reverseObjectEnumerator.allObjects;
// PREDICATES
@ffried
ffried / NSLayoutConstraint+FullscreenConstraints.h
Last active January 1, 2016 18:18
NSLayoutConstraint+FullscreenConstraints
//
// NSLayoutConstraint+FullscreenConstraints.h
//
// Created by Florian Friedrich on 30.12.13.
// Copyright (c) 2013 Florian Friedrich. All rights reserved.
//
// 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:
//