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@steipete
steipete / PSPDFGenerics.h
Last active April 28, 2020 15:08
Override copy and mutableCopy on Objective-C collection classes to pass along both the collection type and the generic info. This is a header-only "library". MIT licensed. Craving for more? foreach: https://gist.github.com/steipete/7e3c69b985165dc23c5ec169b857ff42 even more: https://pspdfkit.com/blog/2016/swifty-objective-c/ - ships in https://p…
//
// PSPDFGenerics.h
// PSPDFFoundation
//
// PSPDFKit is the leading cross-platform solution for integrating PDFs into your apps: https://pspdfkit.com.
// Try it today using our free PDF Viewer app: https://pdfviewer.io/
//
// This file is MIT licensed.
/**
@steipete
steipete / Warnings.xcconfig
Last active March 13, 2018 14:47
Did you knew that Clang Analyzer as alpha checkers? Early Christmas is here! (Ignore the rest... we run our PDF SDK https://pspdfkit.com with -Weverything because warnings are awesome to prevent bugs) - See https://gist.github.com/steipete/28849365e603dc2015c7107d85142e7b/revisions for a list of Xcode 8.3 changes
// clang -cc1 -analyzer-checker-help
// OVERVIEW: Clang Static Analyzer Checkers List
// USAGE: -analyzer-checker <CHECKER or PACKAGE,...>
//
// CHECKERS:
// alpha.core.BoolAssignment Warn about assigning non-{0,1} values to Boolean variables
// alpha.core.CallAndMessageUnInitRefArg
// Check for logical errors for function calls and Objective-C message expressions (e.g., uninitialized arguments, null function pointers, and pointer to undefined variables)
// alpha.core.CastSize Check when casting a malloc'ed type T, whether the size is a multiple of the size of T
// alpha.core.CastToStruct Check for cast from non-struct pointer to struct pointer
@zwaldowski
zwaldowski / Extra Logging for My Great App.mobileconfig
Last active April 18, 2026 03:45
Apple Configuration Profile for Logging in iOS 10 and macOS Sierra
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<!-- iOS 10, macOS Sierra, and friends bring a new logging subsystem that's
supposed to scale from the kernel, up to frameworks, and up to apps. It defaults
to a more regimented, privacy-focused approach that large apps and complex
systems need.
It, along with Activity Tracing introduced in iOS 8 and macOS Yosemite and the
Console app in macOS Sierra, hope to help you graduate from caveman debugging to
@steipete
steipete / ios-xcode-device-support.sh
Last active April 22, 2026 17:21
Using iOS 15 devices with Xcode 12.5 (instead of Xcode 13)
# The trick is to link the DeviceSupport folder from the beta to the stable version.
# sudo needed if you run the Mac App Store version. Always download the dmg instead... you'll thank me later :)
# Support iOS 15 devices (Xcode 13.0) with Xcode 12.5:
sudo ln -s /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/15.0 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
# Then restart Xcode and reconnect your devices. You will need to do that for every beta of future iOS versions
# (A similar approach works for older versions too, just change the version number after DeviceSupport)
@ArtiomL
ArtiomL / dbfin.sh
Created May 31, 2016 18:47
dbfin - Unload and Delete the Dropbox OS X Kernel Extension (Project inFinite)
#!/bin/bash
# dbfin - Unload and Delete the Dropbox OS X Kernel Extension (Project inFinite)
# (CC0) No Rights Reserved
# Artiom Lichtenstein
# v1.1, 31/05/2016
set -u
fun_ECHOLOR() {
echo -e "$(tput setaf $2)$(tput bold)$1$(tput sgr0)"
@Catfish-Man
Catfish-Man / sethack.m
Created March 11, 2016 06:21
Demonstrating the trick of using stack-allocated mimics and sets for lookup tables instead of heap allocated keys and dictionaries
// Compile with clang -framework Foundation sethack.m
#import <Foundation/Foundation.h>
#import <objc/runtime.h>
/*
CFHashBytes from http://www.opensource.apple.com/source/CF/CF-1153.18/CFUtilities.c
*/
#define ELF_STEP(B) T1 = (H << 4) + B; T2 = T1 & 0xF0000000; if (T2) T1 ^= (T2 >> 24); T1 &= (~T2); H = T1;
@macguru
macguru / gist:b7a01e3f0e9ae6f350d5
Last active May 10, 2020 20:58
Interface sizes a regular Universal app must support with iOS 11 when supporting all devices. Starts with iPhone 5 and goes up to iPad Pro 12.9".
COMPACT WIDTH (stacked view)
- 320 x 568 pt
-> iPhone 5, 5s
- 320 x 768 pt
-> iPad 9.7" Split Landscape 2/3 right
- 320 x 834 pt
-> iPad 10.5" Split Landscape 2/3 right
- 320 x 1024 pt
-> iPad 9.7" Split Portrait right
@JaviLorbada
JaviLorbada / FRP iOS Learning resources.md
Last active June 7, 2026 09:24
The best FRP iOS resources.

Videos

@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
@matthiasplappert
matthiasplappert / gist:9493050
Last active August 29, 2015 13:57
QuickLook Debugging for `UIView`
@interface UIView (MPAdditions)
@end
@implementation UIView (MPAdditions)
- (id)debugQuickLookObject {
if (self.bounds.size.width < 0.0f || self.bounds.size.height < 0.0f) {
return nil;
}