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2014/10/15 ¤U¤È 10:11:14
iphone Programming Glossary: macroHow to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices the screen size . UIScreen mainScreen bounds .size.height The iPhone 5's screen has a height of 568. You can imagine a macro to simplify all of this #define IS_IPHONE_5 fabs double UIScreen mainScreen bounds .size.height double 568 DBL_EPSILON The.. an actual iPhone 5. Next versions of the iPod touch will maybe also have such a screen so we may use another set of macros. Let's rename the original macro IS_WIDESCREEN #define IS_WIDESCREEN fabs double UIScreen mainScreen bounds .size.height.. of the iPod touch will maybe also have such a screen so we may use another set of macros. Let's rename the original macro IS_WIDESCREEN #define IS_WIDESCREEN fabs double UIScreen mainScreen bounds .size.height double 568 DBL_EPSILON And let's..
Convert excel document (xls) to a plist http://stackoverflow.com/questions/1546007/convert-excel-document-xls-to-a-plist from the xls document and other than manual copy paste is there a means to convert one to the other Anyone written a macro on the excel side or a utility perl etc to make such a conversion Thanks iphone plist xls share improve this question..
How can I create a UIColor from a hex string? http://stackoverflow.com/questions/1560081/how-can-i-create-a-uicolor-from-a-hex-string such as #00FF00 iphone hex uicolor share improve this question I've found the simplest way to do this is with a macro. Just include it in your header and it's available throughout your project. #define UIColorFromRGB rgbValue UIColor colorWithRed..
http://stackoverflow.com/questions/2521275/what-is-nsparameterassert not 0. So basically you use it to create a precondition stating that some parameter must be set. If it is not set the macro causes the application to abort and generates an error on that line. So void someMethod id someObjectThatMustNotBeNil Make..
API to determine whether running on iPhone or iPad http://stackoverflow.com/questions/2884391/api-to-determine-whether-running-on-iphone-or-ipad
Can you use cancel/isCancelled with GCD/dispatch_async? http://stackoverflow.com/questions/5449469/can-you-use-cancel-iscancelled-with-gcd-dispatch-async you should abandon the space ship construction. The only concern I have with your implementation of the CHECKER macro is that it implements an unexpected return . As such you have to be careful about memory leaks. If you've set up your own.. requested and keep your cleanup in a single location. Another option though some may dislike it would be to make the macro use call goto cleanup and define a cleanup label near the end of the method where you release anything that needs to be.. Edit I feel the need to further clarify my earlier statement about having a single return point. With the CHECKER macro as defined above the buildGuts method can return at any point where that macro is used. If there are any retained objects..
What is the maximum length of an NSString object? http://stackoverflow.com/questions/6482641/what-is-the-maximum-length-of-an-nsstring-object
What is the best way to deal with the NSDateFormatter locale “feature”? http://stackoverflow.com/questions/6613110/what-is-the-best-way-to-deal-with-the-nsdateformatter-locale-feature with about ten different apps and the first one I look at has 43 instances of this scenario. So any clever ideas for a macro overridden class whatever to minimize the effort to change everything without making the code to obscure My first instinct..
http://stackoverflow.com/questions/7271528/nslog-into-file a stderr See this explanation and sample project for details. Or you can override NSLog with a custom function using a macro. Example add this class to your project file Log.h #define NSLog args... _Log @ DEBUG __FILE__ __LINE__ __PRETTY_FUNCTION__..
How do I know whether the compiler has ARC support enabled? http://stackoverflow.com/questions/9462372/how-do-i-know-whether-the-compiler-has-arc-support-enabled
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