2014/10/15 下午 10:14:18
iphone Programming Glossary: somestringHow to calculate the width of a text string of a specific font and font-size? http://stackoverflow.com/questions/1324379/how-to-calculate-the-width-of-a-text-string-of-a-specific-font-and-font-size UIKit Additions . In your case the simplest variant should suffice since you don't have multi line labels NSString someString @ Hello World UIFont yourFont UIFont ... CGSize stringBoundingBox someString sizeWithFont yourFont There are several variations.. you don't have multi line labels NSString someString @ Hello World UIFont yourFont UIFont ... CGSize stringBoundingBox someString sizeWithFont yourFont There are several variations of this method eg. some consider line break modes or maximum sizes. ..
http://stackoverflow.com/questions/1349740/arguments-in-selector invocation NSInvocation invocationWithMethodSignature signature invocation setSelector selector NSString str1 @ someString NSString str2 @ someOtherString The invocation object must retain its arguments str1 retain str2 retain Set the arguments..
How can I extract a URL from a sentence that is in a NSString? http://stackoverflow.com/questions/4590440/how-can-i-extract-a-url-from-a-sentence-that-is-in-a-nsstring that is presented within any sentence that is within a NSString so for example Let's say I had this NSString NSString someString @ This is a sample of a http abc.com efg.php EFAei687e3EsA sentence with a URL within it. I need to be able to extract http.. 9. . a z 2 4 ^ s ^ s ^ s ^ s ^ s ^ s` ' . 竄罈 鎿�吲�覀�输 options NSRegularExpressionCaseInsensitive error NULL NSString someString @ This is a sample of a http abc.com efg.php EFAei687e3EsA sentence with a URL within it. NSString match someString substringWithRange.. someString @ This is a sample of a http abc.com efg.php EFAei687e3EsA sentence with a URL within it. NSString match someString substringWithRange expression rangeOfFirstMatchInString someString options NSMatchingCompleted range NSMakeRange 0 someString..
objective-c code to right pad a NSString? http://stackoverflow.com/questions/5386351/objective-c-code-to-right-pad-a-nsstring right track but not quite there. You do want to use stringWithFormat but not quite as he suggested. If you want to pad someString to say a minimum of 12 characters you'd use a width specifier as part of the format. Since you want the result to be left.. be left justified you need to precede the width specifier with a minus NSString padded NSString stringWithFormat @ 12@ someString Or if you wanted the result to be exactly 12 characters you can use both minimum and maximum width specifiers NSString padded..
iphone+Difference between nil,NIL and null http://stackoverflow.com/questions/5908936/iphonedifference-between-nil-nil-and-null 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..
! vs == nil in objective-c [duplicate] http://stackoverflow.com/questions/6782190/vs-nil-in-objective-c here Testing for nil in Objective C &mdash if x nil vs if x 3 answers If you have an object like NSString someString what is the difference if any between if someString vs if someString nil Thanks iphone objective c c share improve this.. nil vs if x 3 answers If you have an object like NSString someString what is the difference if any between if someString vs if someString nil Thanks iphone objective c c share improve this question The first syntax you use if someString.. 3 answers If you have an object like NSString someString what is the difference if any between if someString vs if someString nil Thanks iphone objective c c share improve this question The first syntax you use if someString exploits a sort..
UILabel - string as text and links http://stackoverflow.com/questions/8839464/uilabel-string-as-text-and-links be displayed as follows label1 addCustomLink NSURL URLWithString @ http www.foodreporter.net inRange txt rangeOfString someString But I wonder how can I make these text links perform some action like navigation to different screen or making a call. Let..
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