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2014/10/15 ¤U¤È 10:12:51
iphone Programming Glossary: prefixAdding Core Data to existing iPhone project http://stackoverflow.com/questions/2032818/adding-core-data-to-existing-iphone-project CoreData CoreData.h And you should be ready to go. Xcode 4 For projects created in Xcode 4 the prefix file can be found in the Supporting Files group in the Project navigator. It's called ' projectname..
iPhone ivar naming convention [duplicate] http://stackoverflow.com/questions/2114587/iphone-ivar-naming-convention names. Even in Apple sample code the use is mixed. However I greatly prefer to not use the _ prefix and have two strong reasons 1 Some people think the _ is a good indicator of private . My take is that.. property and synthesize statement will also be renamed. If you use refactor on a class variable prefixed with an _ the property name will not be changed just the synthesize mapping to the internal name... to the real variable it exposes access to. That alone makes me never want to use _ as a variable prefix since being able to shift names is just about the most useful thing you can do to improve code clarity...
Is it true that one should not use NSLog() on production code? http://stackoverflow.com/questions/300673/is-it-true-that-one-should-not-use-nslog-on-production-code #else #define DebugLog s ... #endif I found it easier to put this entire statement in the prefix header rather than its own file. You could if you wanted build a more complicated logging system by..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel df setDateFormat @ MM dd yyyy hh mm NSString dateString df stringFromDate refreshDate NSString prefix NSLocalizedString @ Updated nil NSString text NSString stringWithFormat @ @ @ prefix dateString df release.. NSString prefix NSLocalizedString @ Updated nil NSString text NSString stringWithFormat @ @ @ prefix dateString df release Create the text layer on demand if _textLayer _textLayer CATextLayer alloc init.. initWithString text attributes attributes attrStr addAttributes subAttributes range NSMakeRange prefix.length 12 12 is the length of MM dd yyyy Set the attributes string in the text layer _textLayer.string..
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 fmt NSDateFormatter alloc initWithPOSIXLocaleAndFormat @ yyyyMMddHHmmss You might want to prefix your category method somehow to avoid name conflicts just in case Apple decides to add such a method..
Property vs. instance variable http://stackoverflow.com/questions/719788/property-vs-instance-variable It's easy now to distinguish between ivars and getters setters. The accessors have got the self. prefix. You shouldn't access the variables directly anyway. Your sample code doesn't work as it should be _myVar..
http://stackoverflow.com/questions/8086584/objective-c-url-encoding not change them as needed. RFC 3986 characters requiring encoding added since it is the encoding prefix character # ' @ Some unreserved characters are additionally encoded n r . ^_` ~ share improve this..
Adding Core Data to existing iPhone project http://stackoverflow.com/questions/2032818/adding-core-data-to-existing-iphone-project
iPhone ivar naming convention [duplicate] http://stackoverflow.com/questions/2114587/iphone-ivar-naming-convention another responder noted to avoid conflict with incoming parameter names. Even in Apple sample code the use is mixed. However I greatly prefer to not use the _ prefix and have two strong reasons 1 Some people think the _ is a good indicator of private . My take is that NO class local variable should be accessed without a setter.. that is named the same as the property used to access it the property and synthesize statement will also be renamed. If you use refactor on a class variable prefixed with an _ the property name will not be changed just the synthesize mapping to the internal name. I pretty much never want the name to vary from the property..
Is it true that one should not use NSLog() on production code? http://stackoverflow.com/questions/300673/is-it-true-that-one-should-not-use-nslog-on-production-code lastPathComponent __LINE__ NSString stringWithFormat s ##__VA_ARGS__ #else #define DebugLog s ... #endif I found it easier to put this entire statement in the prefix header rather than its own file. You could if you wanted build a more complicated logging system by having DebugLog interact with normal Objective C objects. For..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel the text layer NSDateFormatter df NSDateFormatter alloc init df setDateFormat @ MM dd yyyy hh mm NSString dateString df stringFromDate refreshDate NSString prefix NSLocalizedString @ Updated nil NSString text NSString stringWithFormat @ @ @ prefix dateString df release Create the text layer on demand if _textLayer _textLayer.. dd yyyy hh mm NSString dateString df stringFromDate refreshDate NSString prefix NSLocalizedString @ Updated nil NSString text NSString stringWithFormat @ @ @ prefix dateString df release Create the text layer on demand if _textLayer _textLayer CATextLayer alloc init _textLayer.font UIFont boldSystemFontOfSize 13 .fontName.. attrStr NSMutableAttributedString alloc initWithString text attributes attributes attrStr addAttributes subAttributes range NSMakeRange prefix.length 12 12 is the length of MM dd yyyy Set the attributes string in the text layer _textLayer.string attrStr attrStr release _textLayer.opacity 1.0 else _textLayer.opacity..
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 use NSDateFormatter anywhere in your code with just NSDateFormatter fmt NSDateFormatter alloc initWithPOSIXLocaleAndFormat @ yyyyMMddHHmmss You might want to prefix your category method somehow to avoid name conflicts just in case Apple decides to add such a method in a future version of the OS. In case you're always using..
Property vs. instance variable http://stackoverflow.com/questions/719788/property-vs-instance-variable setName NSString value value retain _name release _name value It's easy now to distinguish between ivars and getters setters. The accessors have got the self. prefix. You shouldn't access the variables directly anyway. Your sample code doesn't work as it should be _myVar some_other_object _myVar is the ivar not myVar. self.myVar..
http://stackoverflow.com/questions/8086584/objective-c-url-encoding
Where's the difference between setObject:forKey: and setValue:forKey: in NSMutableDictionary? http://stackoverflow.com/questions/1249634/wheres-the-difference-between-setobjectforkey-and-setvalueforkey-in-nsmutab classes setValue forKey changes member variables. In NSMutableDictionary it changes dictionary entries unless you prefix the key with a '@' character in which case it modifies member variables. So in a nutshell use setObject forKey when you..
HowTo initialise MKMapView with a given user location? http://stackoverflow.com/questions/1437568/howto-initialise-mkmapview-with-a-given-user-location to have a separate location manager object and assign its value to the mapview BTW I'm using ' ' below as list prefix to prevent the SO code formatter from borking . In your UIViewController maintain two separate properties one to a MKMapView..
Adding Core Data to existing iPhone project http://stackoverflow.com/questions/2032818/adding-core-data-to-existing-iphone-project following line #import CoreData CoreData.h And you should be ready to go. Xcode 4 For projects created in Xcode 4 the prefix file can be found in the Supporting Files group in the Project navigator. It's called ' projectname Prefix.pch' by default...
iPhone ivar naming convention [duplicate] http://stackoverflow.com/questions/2114587/iphone-ivar-naming-convention with incoming parameter names. Even in Apple sample code the use is mixed. However I greatly prefer to not use the _ prefix and have two strong reasons 1 Some people think the _ is a good indicator of private . My take is that NO class local variable.. used to access it the property and synthesize statement will also be renamed. If you use refactor on a class variable prefixed with an _ the property name will not be changed just the synthesize mapping to the internal name. I pretty much never.. from the property to the real variable it exposes access to. That alone makes me never want to use _ as a variable prefix since being able to shift names is just about the most useful thing you can do to improve code clarity. share improve this..
Is it true that one should not use NSLog() on production code? http://stackoverflow.com/questions/300673/is-it-true-that-one-should-not-use-nslog-on-production-code s ##__VA_ARGS__ #else #define DebugLog s ... #endif I found it easier to put this entire statement in the prefix header rather than its own file. You could if you wanted build a more complicated logging system by having DebugLog interact..
Handling Touch Event in UILabel and hooking it up to an IBAction http://stackoverflow.com/questions/3169798/handling-touch-event-in-uilabel-and-hooking-it-up-to-an-ibaction
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel alloc init df setDateFormat @ MM dd yyyy hh mm NSString dateString df stringFromDate refreshDate NSString prefix NSLocalizedString @ Updated nil NSString text NSString stringWithFormat @ @ @ prefix dateString df release Create the text.. refreshDate NSString prefix NSLocalizedString @ Updated nil NSString text NSString stringWithFormat @ @ @ prefix dateString df release Create the text layer on demand if _textLayer _textLayer CATextLayer alloc init _textLayer.font.. alloc initWithString text attributes attributes attrStr addAttributes subAttributes range NSMakeRange prefix.length 12 12 is the length of MM dd yyyy Set the attributes string in the text layer _textLayer.string attrStr attrStr release..
Objective C parse hex string to integer http://stackoverflow.com/questions/3648411/objective-c-parse-hex-string-to-integer c string parsing hex share improve this question Joshua Weinberg's answer is mostly correct however the Ox prefix is optional when scanning hexadecimal integers. If you have a string in the format #01FFFFAB you can still use an NSScanner..
Is there a way for XCode to warn about new API calls? http://stackoverflow.com/questions/4676000/is-there-a-way-for-xcode-to-warn-about-new-api-calls file like this #define __IPHONE_OS_VERSION_SOFT_MAX_REQUIRED __IPHONE_4_0 #import MJGAvailability.h The rest of your prefix header as normal #import UIKit UIKit.h Then it'll warn with perhaps a strange deprecation warning about APIs which are being..
What are the Dangers of Method Swizzling in Objective C? http://stackoverflow.com/questions/5339276/what-are-the-dangers-of-method-swizzling-in-objective-c too much to be safe. Possible naming conflicts Naming conflicts are an issue all throughout Cocoa. We frequently prefix class names and method names in categories. Unfortunately naming conflicts are a plague in our language. In the case of..
NS_BLOCK_ASSERTIONS in Objective-C http://stackoverflow.com/questions/6445222/ns-block-assertions-in-objective-c
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 just NSDateFormatter fmt NSDateFormatter alloc initWithPOSIXLocaleAndFormat @ yyyyMMddHHmmss You might want to prefix your category method somehow to avoid name conflicts just in case Apple decides to add such a method in a future version..
Property vs. instance variable http://stackoverflow.com/questions/719788/property-vs-instance-variable release _name value It's easy now to distinguish between ivars and getters setters. The accessors have got the self. prefix. You shouldn't access the variables directly anyway. Your sample code doesn't work as it should be _myVar some_other_object..
http://stackoverflow.com/questions/7271528/nslog-into-file NSLog args... _Log @ DEBUG __FILE__ __LINE__ __PRETTY_FUNCTION__ args @interface Log NSObject void _Log NSString prefix const char file int lineNumber const char funcName NSString format ... @end file Log.m #import Log.h @implementation Log.. const char funcName NSString format ... @end file Log.m #import Log.h @implementation Log void _Log NSString prefix const char file int lineNumber const char funcName NSString format ... va_list ap va_start ap format format format stringByAppendingString.. NSString alloc initWithFormat NSString stringWithFormat @ @ format arguments ap va_end ap fprintf stderr s 50s 3d s prefix UTF8String funcName lineNumber msg UTF8String msg release @end And import it project wide adding the following to your application..
http://stackoverflow.com/questions/8086584/objective-c-url-encoding
Share data between two or more iPhone applications http://stackoverflow.com/questions/9425706/share-data-between-two-or-more-iphone-applications example the iOS programming guide now has a section on passing data between apps by having one app claim a certain URL prefix and then having other apps reference that URL. So perhaps you set your event app to answer event URLs the same way that..
Apple LLVM compiler 3.1 error - iOS 5; Xcode 4.3 http://stackoverflow.com/questions/10592601/apple-llvm-compiler-3-1-error-ios-5-xcode-4-3 Library Developer Xcode DerivedData Test fqacaiejputxwicubwhguzleizde Build Intermediates PrecompiledHeaders Test Prefix clsydhfesjzmtrbgszvgmeofhzfq Test Prefix.pch MMD MT dependencies MF Users juniorpond Library Developer Xcode DerivedData.. Test fqacaiejputxwicubwhguzleizde Build Intermediates PrecompiledHeaders Test Prefix clsydhfesjzmtrbgszvgmeofhzfq Test Prefix.pch MMD MT dependencies MF Users juniorpond Library Developer Xcode DerivedData Test fqacaiejputxwicubwhguzleizde Build..
Access App Identifier Prefix programmatically http://stackoverflow.com/questions/11726672/access-app-identifier-prefix-programmatically App Identifier Prefix programmatically How can I access the Bundle Seed ID Team ID App Identifier Prefix string programmatically These are all.. App Identifier Prefix programmatically How can I access the Bundle Seed ID Team ID App Identifier Prefix string programmatically These are all the same thing as far as I can tell . I am using the UICKeychainStore keychain wrapper..
problem with “this class is not key value coding-compliant” http://stackoverflow.com/questions/3760803/problem-with-this-class-is-not-key-value-coding-compliant conventions point of view Name your files after your class upper case the first character of the filename . Prefix your class names two uppercase characters typically your initials i'd name it DWAlertCell for example . share improve..
iOS SDK broken ever after reinstall UIKit and Foundation frameworks not found http://stackoverflow.com/questions/4008800/ios-sdk-broken-ever-after-reinstall-uikit-and-foundation-frameworks-not-found not found For the pch file I get these errors Users matt Programming iPhone Monkey Curling lite iPhone_Monkey_Curling_Prefix.pch 6 34 error Foundation Foundation.h No such file or directory Users matt Programming iPhone Monkey Curling lite iPhone_Monkey_Curling_Prefix.pch.. Foundation.h No such file or directory Users matt Programming iPhone Monkey Curling lite iPhone_Monkey_Curling_Prefix.pch 7 24 error UIKit UIKit.h No such file or directory Here's the file as it is by default. Prefix header for all source.. 7 24 error UIKit UIKit.h No such file or directory Here's the file as it is by default. Prefix header for all source files of the 'iPhone Monkey Curling' target in the 'iPhone Monkey Curling' project #ifdef __OBJC__..
How to get contacts detail of iphone and make CSV file of that contact http://stackoverflow.com/questions/7118772/how-to-get-contacts-detail-of-iphone-and-make-csv-file-of-that-contact i ABAddressBookGetPersonCount addressBook i ABRecordRef ref CFArrayGetValueAtIndex people i Get First name Last name Prefix Suffix Job title NSString firstName NSString ABRecordCopyValue ref kABPersonFirstNameProperty NSString lastName NSString.. NSString ABRecordCopyValue ref kABPersonLastNameProperty NSString prefix NSString ABRecordCopyValue ref kABPersonPrefixProperty NSString suffix NSString ABRecordCopyValue ref kABPersonSuffixProperty NSString jobTitle NSString ABRecordCopyValue..
Availability.h, UIKit.h, etc not found http://stackoverflow.com/questions/9380186/availability-h-uikit-h-etc-not-found for Lion. And then my project stopped compiling. It says Lexical or Preprocessor Issue Availability.h file not found. Prefix header for all source files of the 'TRGame' target in the 'TRGame' project #import Availability.h #ifndef __IPHONE_3_0 #warning.. 3.0 and later. #endif #ifdef __OBJC__ #import UIKit UIKit.h #import Foundation Foundation.h #endif That's in the xxxx Prefix.pch file. If I comment out the #import Availability.h it will tell me that it can't find the UIKit.h and so on... Help will..
Intermittent error accessing core data model / contacts database http://stackoverflow.com/questions/9923882/intermittent-error-accessing-core-data-model-contacts-database not compile statement SELECT ROWID First Last Middle NULL NULL NULL Organization NULL NULL Kind NULL NULL Nickname Prefix Suffix FirstSort LastSort CreationDate ModificationDate CompositeNameFallback NULL StoreID NULL FirstSortSection LastSortSection.. not compile statement SELECT ROWID First Last Middle NULL NULL NULL Organization NULL NULL Kind NULL NULL Nickname Prefix Suffix FirstSort LastSort CreationDate ModificationDate CompositeNameFallback NULL StoreID NULL FirstSortSection LastSortSection.. not compile statement SELECT ROWID First Last Middle NULL NULL NULL Organization NULL NULL Kind NULL NULL Nickname Prefix Suffix FirstSort LastSort CreationDate ModificationDate CompositeNameFallback NULL StoreID NULL FirstSortSection LastSortSection..
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