2014/10/15 下午 10:11:08

iphone Programming Glossary: literals

How could I write this if else code checking in a better way? [closed]

http://stackoverflow.com/questions/14663798/how-could-i-write-this-if-else-code-checking-in-a-better-way

Cumulative Normal Distribution function in objective C

http://stackoverflow.com/questions/2785944/cumulative-normal-distribution-function-in-objective-c

M_SQRT1_2 If you don't need double precision change the doubles to floats use the erfcf function and change the literals to single precision literals. Remember Objective C is an extremely light extension to C. Every C function is an Objective.. need double precision change the doubles to floats use the erfcf function and change the literals to single precision literals. Remember Objective C is an extremely light extension to C. Every C function is an Objective C function with no wrapping..

changing text color of uitabbaritem

http://stackoverflow.com/questions/3051958/changing-text-color-of-uitabbaritem

this question Old question but I have a new answer that is supported in iOS 5 onwards also I'm using LLVM 4.0 literals UITabBarItem appearance setTitleTextAttributes @ UITextAttributeTextColor UIColor whiteColor forState UIControlStateNormal..

LLVM vs. GCC for iOS development [closed]

http://stackoverflow.com/questions/4589335/llvm-vs-gcc-for-ios-development

newer versions of Xcode and supporting ARC and new and upcoming language constructs array and dictionary subscripting literals etc. . There's almost absolutely no reason to compile with GCC anymore and for codebases using ARC and new features using..

what does dollar sign mean in objective-c?

http://stackoverflow.com/questions/4713051/what-does-dollar-sign-mean-in-objective-c

link to the library that provides these macros maybe somebody else does By the way it looks like we will have official literals for arrays dictionaries and some other objects in Xcode 4.4. The details appear to be under NDA at the moment but there..

NSMutableString as retain/copy

http://stackoverflow.com/questions/4995254/nsmutablestring-as-retain-copy

environments. immutable strings are still reference counted. there are exceptions to this notably CF NS String literals exist for the program's duration you can use CF APIs to create strings which are never released or are managed beyond the..

Comparing float and double data types in objective C

http://stackoverflow.com/questions/5024913/comparing-float-and-double-data-types-in-objective-c

you can do to make it more intuitive is to not mix precisions. If you're working with float make sure all of your literals are suffixed with f to make them single precision too. This can also improve performance but that's not the reason to do..

How would you keep secret data secret in an iPhone application?

http://stackoverflow.com/questions/544463/how-would-you-keep-secret-data-secret-in-an-iphone-application

idea. Another idea is storing the key in code not a string literal but in a NSMutableArray that's created from byte literals. One can use the Keychain but since an iPhone app never has to supply a password to store things in the Keychain I'm wary..

Is it possible to trace back a string inside an IPA binary?

http://stackoverflow.com/questions/6305808/is-it-possible-to-trace-back-a-string-inside-an-ipa-binary