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@kharmabum
kharmabum / ocmock-cheatsheet.m
Last active October 8, 2022 07:55
OCMock cheatsheet
/*----------------------------------------------------*/
#pragma mark - XCTAsserts
/*----------------------------------------------------*/
XCTAssert(expression, format...);
XCTAssertTrue(expression, format...);
XCTAssertFalse(expression, format...);
XCTAssertEqual(expression1, expression2, format...);
XCTAssertNotEqual(expression1, expression2, format...);
XCTAssertNil(expression, format...);
@nicklockwood
nicklockwood / Hacking UIView Animation Blocks.md
Last active June 18, 2024 15:35
This article was originally written for objc.io issue 12, but didn't make the cut. It was intended to be read in the context of the other articles, so if you aren't familiar with concepts such as CALayer property animations and the role of actionForKey:, read the articles in that issue first.

Hacking UIView animation blocks for fun and profit

In this article, I'm going to explore a way that we can create views that implement custom Core Animation property animations in a natural way.

As we know, layers in iOS come in two flavours: Backing layers and hosted layers. The only difference between them is that the view acts as the layer delegate for its backing layer, but not for any hosted sublayers.

In order to implement the UIView transactional animation blocks, UIView disables all animations by default and then re-enables them individually as required. It does this using the actionForLayer:forKey: method.

Somewhat strangely, UIView doesn't enable animations for every property that CALayer does by default. A notable example is the layer.contents property, which is animatable by default for a hosted layer, but cannot be animated using a UIView animation block.

/**
Utility method to build a Boolean decision tree in the form of a compound
NSPredicate which can be used to perform a full-text search on a collection.
The resulting predicate will match only those objects which, for each search
term, have at least one keypath in the set of provided keypaths for which the
corresponding value matches the search term. The type of operator to perform
(prefix, contains, exact match) can be configured, as can diacritic-sensitivity
and case-sensitivity options.
@param searchString A space-delimited list of search terms
@jbenet
jbenet / simple-git-branching-model.md
Last active June 17, 2024 14:53
a simple git branching model

a simple git branching model (written in 2013)

This is a very simple git workflow. It (and variants) is in use by many people. I settled on it after using it very effectively at Athena. GitHub does something similar; Zach Holman mentioned it in this talk.

Update: Woah, thanks for all the attention. Didn't expect this simple rant to get popular.

@steipete
steipete / UIKitLegacyDetector.m
Last active March 12, 2024 13:57
A simple way to detect at runtime if we're running in UIKit legacy mode or the new "flat" variant. Written for our PDF iOS SDK (http://pspdfkit.com), where the precompiled binary needs to detect at runtime in what variant it's running. Want more stuff like that? Follow me on Twitter: http://twitter.com/steipete
// 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;
}
@hborders
hborders / gist:4064006
Created November 13, 2012 05:04
Example of my use of UIViewController containment lifecycle methods inside a custom tab bar controller.
- (void) setSelectedViewController:(UIViewController<SFCustomTabbedViewController> *)selectedViewController {
if (_selectedViewController != selectedViewController) {
if (_selectedViewController) {
NSUInteger selectedViewControllerIndex = [self.viewControllers indexOfObject:_selectedViewController];
if (selectedViewControllerIndex != NSNotFound) {
UIButton *tabButton = [self.tabButtons objectAtIndex:selectedViewControllerIndex];
tabButton.selected = NO;
}
[_selectedViewController willMoveToParentViewController:nil];
@steipete
steipete / gist:3933090
Created October 22, 2012 18:13
Simple main thread usage detector that I'm using in PSPDFKit to find performance problems early on.
// Smart little helper to find main thread hangs. Enable in appDidFinishLaunching.
// Only available with source code in DEBUG mode.
@interface PSPDFHangDetector : NSObject
+ (void)startHangDetector;
@end
@implementation PSPDFHangDetector
+ (void)startHangDetector {
#ifdef DEBUG
@scottkellum
scottkellum / normalized.html
Created December 6, 2011 14:58
pixel normalization
<!doctype html>
<html>
<head>
<!-- Encoding -->
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- Always force latest IE rendering engine (even in intranet) & Chrome Frame -->
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"></meta>
@lucasfais
lucasfais / gist:1207002
Created September 9, 2011 18:46
Sublime Text 2 - Useful Shortcuts

Sublime Text 2 – Useful Shortcuts (Mac OS X)

General

⌘T go to file
⌘⌃P go to project
⌘R go to methods
⌃G go to line
⌘KB toggle side bar
⌘⇧P command prompt