2014/10/15 下午 10:11:08

iphone Programming Glossary: literal

How to resolve linking error - static lib iPhone

http://stackoverflow.com/questions/1129877/how-to-resolve-linking-error-static-lib-iphone

but I am not able to use it in another project. I am getting this error .objc_class_name_XMLParser referenced from literal pointer@__OBJC@__cls_refs@XMLParser in Minutes2MidnightViewController.o .objc_class_name_TickerViewController referenced.. in Minutes2MidnightViewController.o .objc_class_name_TickerViewController referenced from literal pointer@__OBJC@__cls_refs@TickerViewController in Minutes2MidnightViewController.o ld symbol s not found collect2 ld returned..

Nil NSDate when trying to get date from UTC string in zulu time

http://stackoverflow.com/questions/1263455/nil-nsdate-when-trying-to-get-date-from-utc-string-in-zulu-time

format string. How can I fix it to correctly parse the date string A thought would be to make the Z in the date format literal a la setting the date format to yyyy MM dd'T'HH mm ss.SSS'Z' . That would work except when the Z is parsed as a literal.. a la setting the date format to yyyy MM dd'T'HH mm ss.SSS'Z' . That would work except when the Z is parsed as a literal the date loses offset information and so is ambiguous and therefore interpreted to be local time. For example if the string..

Parsing JSON dates on IPhone

http://stackoverflow.com/questions/1757303/parsing-json-dates-on-iphone

now. As I can probably pick it up easily using a NSDateFormatter. Quote from Rick Strahl There's no JavaScript date literal and Microsoft engineered a custom date format that is essentially a marked up string. The format is a string that's encoded..

Replace occurrences of NSString - iPhone

http://stackoverflow.com/questions/2492236/replace-occurrences-of-nsstring-iphone

question The backslash is an escape character so if you want to specify the actual backslash character in a string literal you need to use two backslashes. NSString new old stringByReplacingOccurrencesOfString @ u0153 withString @ oe share improve..

Comparing float and double data types in objective C

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

block of code is not executed. f is exactly 4.19999980926513671875 but you're comparing it to the double precision literal 4.2 which has the value 4.20000000000000017763568394002504646778106689453125 so the comparison fails. If instead you compare.. so the comparison fails. If instead you compare against the single precision literal 4.2f float f 4.2 if f 4.2f this block of code is exectued. the comparison succeeds because the values are exactly equal... 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..

Issue With Code: Format string is not a string literal [duplicate]

http://stackoverflow.com/questions/5428325/issue-with-code-format-string-is-not-a-string-literal

With Code Format string is not a string literal duplicate Possible Duplicate SnowLeopard Xcode warning &ldquo format not a string literal and no format arguments&rdquo.. string is not a string literal duplicate Possible Duplicate SnowLeopard Xcode warning &ldquo format not a string literal and no format arguments&rdquo I am getting the following issue for this line of code. Format string is not a string literal.. and no format arguments&rdquo I am getting the following issue for this line of code. Format string is not a string literal potentially insecure NSLog NSString stringWithFormat @ @ entered Any suggestions iphone objective c share improve this..

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

Thus just storing the key in the source code is a terrible 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.. 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..

How to print a double with full precision on iOS?

http://stackoverflow.com/questions/5729004/how-to-print-a-double-with-full-precision-on-ios

IEEE 754 64bit floating point number has slightly less than 16 decimal digits of precision so all those digits of the literal in math.h are pointless perhaps they can be seen as future proofing against a possible future redefinition in a format with..

iphone+Difference between nil,NIL and null

http://stackoverflow.com/questions/5908936/iphonedifference-between-nil-nil-and-null

then please explain for what it is for. iphone objective c null nil nsnull share improve this question nil is the literal null value for Objective C objects corresponding to the abstract type id or any Objective C type declared via @interface.. For instance NSString someString nil NSURL someURL nil id someObject nil if anotherObject nil do something Nil is the literal null value for Objective C classes corresponding to the type Class . Since most code doesn 脌 need variables to reference.. classes its use is not common. One example is Class someClass Nil Class anotherClass NSString class NULL is the literal null value for arbitrary C pointers. For instance int pointerToInt NULL char pointerToChar NULL struct TreeNode rootNode..

Embed Google Maps on page without overriding iPhone scroll behavior

http://stackoverflow.com/questions/7534888/embed-google-maps-on-page-without-overriding-iphone-scroll-behavior

still allow the zoom buttons and allow the map to be redrawn with directions through a select field I have coded so a literal static image is not a solution. I found this post that required similar functionality but it's using v3. I think all I need..

How do I escape a Unicode character in my Objective-C source code?

http://stackoverflow.com/questions/833822/how-do-i-escape-a-unicode-character-in-my-objective-c-source-code

the documentation and Google are giving me no love at all. I have a Unicode character I want to insert into a string literal in the source code of my iPhone app. I know its hex value. What is the proper escape sequence to use And for that matter..

How to change the Color of text in UITabBarItem in iOS 5

http://stackoverflow.com/questions/8412010/how-to-change-the-color-of-text-in-uitabbaritem-in-ios-5

withFinishedUnselectedImage . Edit Here is another example using the UIAppearance system and the NSDictionary literal syntax UITabBarItem appearance setTitleTextAttributes @ UITextAttributeFont UIFont fontWithName @ AmericanTypewriter size..