This document has been modified from its [original format][m1], which was written by Ning Shang (geek@cerias.net). It has been updated and reformatted into a [Markdown][m2] document by [Woody Gilk][m3] and [republished][m4].
When working with a remote git repository which is hosted on a third-party storage server, data confidentiality sometimes becomes
| // The trick is to copy the DeviceSupport folder from the beta to the stable version. | |
| cp -r /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/10.0\ \(14A5261u\) /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/ | |
| // Then restart Xcode. You might need to do that for every beta of iOS 10/Xcode 8. |
| // 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; |
| //Given this: | |
| NSArray *objects = @[@1, @2, @3] | |
| //These are equivalent in behavior | |
| NSNumber *first = [objects objectAtIndex:0] | |
| NSNumber *second = (NSNumber *)CFArrayGetValueAtIndex(0) | |
| //But is the code that runs the same? Not so much… in the first one we do… | |
| objc_msgSend(objects, <selector reference>, 0) | |
| -> http://sealiesoftware.com/msg/x86-mavericks.html |
| // Taken from http://PSPDFKit.com. This snippet is under public domain. | |
| #define UIKitVersionNumber_iOS_7_0 0xB57 | |
| BOOL PSPDFIsUIKitFlatMode(void) { | |
| static BOOL isUIKitFlatMode = NO; | |
| static dispatch_once_t onceToken; | |
| dispatch_once(&onceToken, ^{ | |
| // We get the modern UIKit if system is running >= iOS 7 and we were linked with >= SDK 7. | |
| if (kCFCoreFoundationVersionNumber >= kCFCoreFoundationVersionNumber_iOS_7_0) { | |
| isUIKitFlatMode = (NSVersionOfLinkTimeLibrary("UIKit") >> 16) >= UIKitVersionNumber_iOS_7_0; | |
| } |
| #!/usr/bin/python | |
| # Invoke this script with a Swift file containing an XCTestCase and it will | |
| # generate an implementation for the `allTests` variable required for | |
| # XCTestCaseProvider conformance on Linux | |
| import sys | |
| import re | |
| inFile = open(sys.argv[1]) if len(sys.argv) > 1 else sys.stdin |
| # Install libxml2 using Homebrew | |
| # If you don't have Homebrew, follow the instructions at: | |
| # https://github.com/mxcl/homebrew/wiki/Installation | |
| # ------------------------------------------------------- | |
| brew install libxml2 | |
| # Install libxslt from source code | |
| # If you don't have wget, follow the instructions at: | |
| # http://www.mactricksandtips.com/2008/07/installing-wget-on-your-mac-for-terminal.html | |
| # Or use Homebrew: |
| // Created by Nick Snyder on 11/13/12. | |
| // NDCollectionViewFlowLayout.h | |
| @interface NDCollectionViewFlowLayout : UICollectionViewFlowLayout | |
| @end |
| #import <UIKit/UIKit.h> | |
| @interface UIView (SMFrameAdditions) | |
| @property (nonatomic, assign) CGPoint $origin; | |
| @property (nonatomic, assign) CGSize $size; | |
| @property (nonatomic, assign) CGFloat $x, $y, $width, $height; // normal rect properties | |
| @property (nonatomic, assign) CGFloat $left, $top, $right, $bottom; // these will stretch the rect | |
| @end |
| @interface SomeViewController () | |
| // Declare some collection properties to hold the various updates we might get from the NSFetchedResultsControllerDelegate | |
| @property (nonatomic, strong) NSMutableIndexSet *deletedSectionIndexes; | |
| @property (nonatomic, strong) NSMutableIndexSet *insertedSectionIndexes; | |
| @property (nonatomic, strong) NSMutableArray *deletedRowIndexPaths; | |
| @property (nonatomic, strong) NSMutableArray *insertedRowIndexPaths; | |
| @property (nonatomic, strong) NSMutableArray *updatedRowIndexPaths; | |
| @end |
