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Dietrich T. drct

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drct / PSPDFUIKitMainThreadGuard.m
Last active February 2, 2017 17:08 — forked from steipete/PSPDFUIKitMainThreadGuard.m
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.
#import <objc/runtime.h>
#import <objc/message.h>
#import <UIKit/UIKit.h>