In Sierra but not Mojave, when the user opens an ancillary window, it appears for a moment, then vanishes. Is it a bug in the code, or in AppKit?
Would you like to have two or more windows open on the same document, so you can check notes or references while reading? Now you can, for PDFs.
A simple way to provide a proper Help book for your app, and separate PDF documentation without wasted effort. Uses Swift in Xcode.
By popular request, how to customise the PDF reader’s interface to enlarge the window and show larger thumbnails. With two lines of code.
This second part uses Xcode’s Interface Builder to create the document window, then wire it up to the code which brings PDFKit and AppKit together.
Building a useful app in Xcode 10.1 with Swift. This app is a PDF reader which requires around a dozen lines of code.
More bugs in Calculator and Activity Monitor when printing, dreadful lack of documentation of AppKit, TextKit, and CoreData. No wonder Apple is struggling to sell iPhones in China.
It could and should have been so easy, but just try printing when in Dark Mode. Many apps make a pig’s ear of it – and it’s not their fault.
Simple: when running on older macOS, remove some items from the app menu. The solution is also straightforward, just very hard to locate.
Swift Playgrounds are attracting a lot of young people to learn to code. But what do they do when they’re ready to write ‘proper’ apps? Where are Apple’s guides and example code?