David H

David H has asked 17 questions and find answers to 168 problems.

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About

EE turned Mac/iPhone programmer. You can contact me directly using dfheditor at me dot com.

David H questions

CRASH: [UIPageControl] Page out-of-bounds. Requested 0 but the page control only has 0 pages: why?
How do I convert an OpenGL GLKView to a MTLKit Metal based View?
How to request the schema from a GraphQL service using curl?
Why do I always get NSURLConnection timeouts when downloading images over cellular networks?
How do I use pkginclude_HEADERS and Automake to get a second include directory?
Is there any way to get the neat Objective-C literal indexing feature in Xcode 4.4?
How to render a complex UIView into a PDF Context with high resolution?
Where should I save data & files I want to keep long term, and how do I prevent iCloud from backing them up
How to remove older unneeded devices?
How do I resolve macOS Carthage hangs when running update?

David H answers

Using NSManagedObjectContextObjectsDidChangeNotification
Difference between Main Queue / Current Queue & Main Thread / Background Thread in this case?
Extracting PDF text using PDFKit and Vision OCR
How to make Crash resistant ios apps
How to handle Windows-1252 characters in iOS?
CRASH: [UIPageControl] Page out-of-bounds. Requested 0 but the page control only has 0 pages: why?
init root viewcontroller causes crash
How can be detected when an app has been restored from a backup?
How do I convert an OpenGL GLKView to a MTLKit Metal based View?
Xcode builds on Debug but not on Release