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When embedding frameworks to your Mac app there might be problems of finding a header file. There are two things to check for:
If you ever need to explain to a client why enabling iOS4 Multitasking is more than an entry in info.plist, point him to Doms list of non-obvious things to consider: http://cocoa-dom.tumblr.com/post/866039292/the-hidden-complexity-of-ios-4-multitasking
When you experience strange performance lags on an iPhone 4, make sure that your @2x images are *really* double the size of the original images. Especially if used in -colorWithPatternImage:
Did you know that you can add applications to your Finder toolbar? This comes in as a very handy shortcut because you can add context aware action scripts that do common stuff for you. Today I’m sharing 3 of them that help me through my days. 
You can download them here. It’s a good idea to extract them into your applications folder like so:
To add them to your toolbar simple drag them there. That’s how my toolbar looks:
The scripts/applications are based on this post but have been modified slightly. Let me know if you like’em
Just what I was looking for – Thanks!
Finishing & canceling concurrent NSOperations requires to trigger KVO for isFinished and isCancelled.
Prevent UIWebView from horizontal scrolling.
HTML meta:
Emmanuel Paraskakis is discussing. <meta name = "viewport"
content = "initial-scale = 1.0, user-scalable = no, width = 320"/>CSS:
text-overflow: ellipsis; overflow: hidden;
No 1 in (serious) series of coding style posts: Private methods
Declaring private methods in a class extension (like an anonymous category) rather than a named category makes the compiler warn you when those methods aren’t implemented.
# MyClass.h @interface MyClass : NSObject { } - (void)publicMethod; @end # MyClass.m #include "MyClass.h" @interface MyClass () - (void)privateMethod; @end @implementation MyClass - (void)publicMethod; { NSLog(@"public"); } - (void)privateMethod; { NSLog(@"very private"); } @end
Also: With the new Runtime, you can declare private ivars in a class extension. The new Runtime is available on the iPhone since 3.0 (might be 3.1 I’m not sure now) and on the Simulator of XCode 4.
If you want your subviews rendered before the alpha value is applied you can use the UIViewGroupOpacity Info Plist setting.
My list of breakpoints. Add them to your ~/.gdbinit
fb -[NSException raise] fb -[NSAssertionHandler handleFailureInFunction:file:lineNumber:description:] fb -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] fb NSKVODeallocateBreak fb _NSAutoreleaseNoPool fb -[_NSZombie init] fb -[_NSZombie retainCount] fb -[_NSZombie retain] fb -[_NSZombie release] fb -[_NSZombie autorelease] fb -[_NSZombie methodSignatureForSelector:] fb -[_NSZombie respondsToSelector:] fb -[_NSZombie forwardInvocation:] fb -[_NSZombie class] fb -[_NSZombie dealloc] fb szone_error fb objc_exception_throw fb malloc_error_break fb CGPostError fb malloc_printf fb _objc_error fb objc_exception_during_finalize_error fb auto_zone_resurrection_error fb auto_refcount_underflow_error
UPDATE: added _NSAutoreleaseNoPool breakpoint to stop when there’s no autorelease pool but one is expected.
Use NSAssert(…) during development.
But set NS_BLOCK_ASSERTIONS pre compiler flag for release.
NS_BLOCK_ASSERTIONS=1 Seems to be default in XCode 3.2
toto is discussing.
everydaypanos 14:56 on 7. August 2010 Permalink
Why write code for “clients” when you can write for yourself. Plus you skip the annoying explanations to others.
(I would like to suggest that you also use Rewrd as a Micropayments Service for your blog. Thx.)