Bending UIKit to your will

My talk for UIKonf - http://uikonf.com

The video to this talk will be up soon. With just the slides, context gets lost a bit. Most of this calls are *really* just meant for development - use at your own risk.

See also: http://petersteinberger.com/blog/2012/pimping-recursivedescription/

If you're showing PDF on iOS, check out http://PSPDFKit.com

Transcript

1. Bending UIKit to your will
2. @steipete
5. Private API
7. Development
8. po [[UIWindow keyWindow] recursiveDescription]
9. - (UIViewController *)_viewDelegate;
10. [[UIApplication sharedApplication] performSelector:NSSelectorFromString(@"_performMemoryWarning")];
11. extern void CGPathPrint(CGPathRef path, FILE* file);
12. CGFloat PSPDFSimulatorAnimationDragCoefficient(void) { void *UIKit = dlopen([[[NSBundle bundleForClass:[UIApplication class]] executablePath] fileSystemRepresentation], RTLD_LAZY); CGFloat (*UIAnimationDragCoefficient)(void) = (CGFloat (*)(void))dlsym(UIKit, "UIAnimationDragCoefficient"); return UIAnimationDragCoefficient? UIAnimationDragCoefficient() : 1.f; }
13. [[NSNotificationCenter defaultCenter] addObserverForName:nil object:nil queue:nil usingBlock:^(NSNotification *note) { NSLog(@"Catch-All: %@", note); }];
14. UIWindowFirstResponderDidChangeNotification
15. Testing
16. Nocilla KIF PonyDebugger OHHTTPStubs
17. Fixing Apple’s bugs
20. [_UIPageCurl _pageCurlAnimationDidStop:withState:]: message sent to deallocated instance 0x14a03fe0
22. NSClassFromString([NSString stringWithFormat:@"_%@urlState", @"UIPageC"]);
24. Fun
25. Fun
26. UIRemoteViewController
28. - (void)attentionClassDumpUser:(id)arg1 yesItsUsAgain:(id)arg2 althoughSwizzlingAndOverridingPrivateMethodsIsFun:(id)arg3 itWasntMuchFunWhenYourAppStoppedWorking:(id)arg4 pleaseRefrainFromDoingSoInTheFutureOkayThanksBye:(id)arg5;
31. @interface CASpringAnimation : CABasicAnimation @property float damping; @property float mass; @property float stiffness; @property float velocity; @end
32. Some subtitle or description goes here Here the title
33. Technical debt
34. - (void)addChildViewController:(id)controller;
35. Improve UI
36. Some subtitle or description goes here Here the title
37. Demo time
39. Hopper
40. Thanks! (And don’t tell Apple) @steipete - say Hi!