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2014/10/15 ¤U¤È 10:05:42
iphone Programming Glossary: countinghttp://stackoverflow.com/questions/18736954/missing-recommended-icon-file-the-bundle-does-not-contain-an-app-icon-for-iph ™ll need 57 x 57 72 x 72 76 x 76 114 x 114 120 x 120 144 x 144 and 152 x 152 icon sizes. Without counting Spotlight and Settings icon if you don ™t want the OS to interpolate them As per the blog post New Metrics..
iOS 5 Best Practice (Release/retain?) http://stackoverflow.com/questions/6308425/ios-5-best-practice-release-retain of data or should I ignore that Does it matter iphone ios ios5 memory management automatic ref counting share improve this question It's up to you. You can write apps using ARC Automatic Reference Counting..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c reference counting with Cocoa and Objective C I'm just beginning to have a look at Objective C and Cocoa with a view to.. the iPhone SDK. I'm reasonably comfortable with C's malloc and free concept but Cocoa's references counting scheme has me rather confused. I'm told it's very elegant once you understand it but I'm just not over..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown I change my code so that I don't get this warning anymore iphone objective c ios automatic ref counting share improve this question Solution The compiler is warning about this for a reason. It's very..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons been using ARC and if so how have you found it so far iphone objective c ipad ios5 automatic ref counting share improve this question There is no downside. Use it. Do it today. It is faster than your old..
Objective-C ARC: strong vs retain and weak vs assign http://stackoverflow.com/questions/8927727/objective-c-arc-strong-vs-retain-and-weak-vs-assign new projects or are the kind of being deprecated iphone objective c ios5 properties automatic ref counting share improve this question From the Transitioning to ARC Release Notes the example in the section..
http://stackoverflow.com/questions/18736954/missing-recommended-icon-file-the-bundle-does-not-contain-an-app-icon-for-iph and 152 x 152 icon sizes. If you also want to target iOS 6 you ™ll need 57 x 57 72 x 72 76 x 76 114 x 114 120 x 120 144 x 144 and 152 x 152 icon sizes. Without counting Spotlight and Settings icon if you don ™t want the OS to interpolate them As per the blog post New Metrics for iOS 7 App Icons . UPDATE As per Apple Guideline App..
iOS 5 Best Practice (Release/retain?) http://stackoverflow.com/questions/6308425/ios-5-best-practice-release-retain Specifically should I continue using the release retain of data or should I ignore that Does it matter iphone ios ios5 memory management automatic ref counting share improve this question It's up to you. You can write apps using ARC Automatic Reference Counting and Xcode will write glue code to allow your ARC enabled..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c reference counting with Cocoa and Objective C I'm just beginning to have a look at Objective C and Cocoa with a view to playing with the iPhone SDK. I'm reasonably comfortable with.. a look at Objective C and Cocoa with a view to playing with the iPhone SDK. I'm reasonably comfortable with C's malloc and free concept but Cocoa's references counting scheme has me rather confused. I'm told it's very elegant once you understand it but I'm just not over the hump yet. How do release retain and autorelease work..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown exists or not but why would that cause a leak And how can I change my code so that I don't get this warning anymore iphone objective c ios automatic ref counting share improve this question Solution The compiler is warning about this for a reason. It's very rare that this warning should simply be ignored and it's easy..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons ARC have a cost like garbage collection in Java Have you been using ARC and if so how have you found it so far iphone objective c ipad ios5 automatic ref counting share improve this question There is no downside. Use it. Do it today. It is faster than your old code. It is safer than your old code. It is easier than your..
Objective-C ARC: strong vs retain and weak vs assign http://stackoverflow.com/questions/8927727/objective-c-arc-strong-vs-retain-and-weak-vs-assign . Is there any reason why should I use assign and retain in new projects or are the kind of being deprecated iphone objective c ios5 properties automatic ref counting share improve this question From the Transitioning to ARC Release Notes the example in the section on property attributes . The following declaration is a synonym..
http://stackoverflow.com/questions/18736954/missing-recommended-icon-file-the-bundle-does-not-contain-an-app-icon-for-iph to target iOS 6 you ™ll need 57 x 57 72 x 72 76 x 76 114 x 114 120 x 120 144 x 144 and 152 x 152 icon sizes. Without counting Spotlight and Settings icon if you don ™t want the OS to interpolate them As per the blog post New Metrics for iOS 7 App..
Setting up a plist to store application data (not settings) for an iPhone game http://stackoverflow.com/questions/4911688/setting-up-a-plist-to-store-application-data-not-settings-for-an-iphone-game arrayWithContentsOfFile plistPath Now you have the array of levels. Each level is a dictionary. Load the level i counting from 0 . NSDictionary level levelArray objectAtIndex i Now you can get the objects from level dictionary by using objectForKey..
iOS 5 Best Practice (Release/retain?) http://stackoverflow.com/questions/6308425/ios-5-best-practice-release-retain the release retain of data or should I ignore that Does it matter iphone ios ios5 memory management automatic ref counting share improve this question It's up to you. You can write apps using ARC Automatic Reference Counting and Xcode will..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c reference counting with Cocoa and Objective C I'm just beginning to have a look at Objective C and Cocoa with a view to playing with the iPhone.. to playing with the iPhone SDK. I'm reasonably comfortable with C's malloc and free concept but Cocoa's references counting scheme has me rather confused. I'm told it's very elegant once you understand it but I'm just not over the hump yet. How..
How do I replace weak references when using ARC and targeting iOS 4.0? http://stackoverflow.com/questions/6893038/how-do-i-replace-weak-references-when-using-arc-and-targeting-ios-4-0 while still taking advantage of ARC after all it's supposed to work with iOS 4 AND 5 right iphone ios automatic ref counting share improve this question To target the older OS you can use unsafe_unretained instead of weak in your property declaration..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown a leak And how can I change my code so that I don't get this warning anymore iphone objective c ios automatic ref counting share improve this question Solution The compiler is warning about this for a reason. It's very rare that this warning..
Where are the best explanations of memory management for iPhone? [closed] http://stackoverflow.com/questions/710288/where-are-the-best-explanations-of-memory-management-for-iphone out there. I have a 1000 pages book about objective c but unfortunately the part about memory management retain counting is described pretty bad and hard to understand. iphone memory management share improve this question A quick explaination..
Is ARC really supported in iOS 4? The iOS 4.2 SDK is missing ARC-related symbols at linking time http://stackoverflow.com/questions/7747783/is-arc-really-supported-in-ios-4-the-ios-4-2-sdk-is-missing-arc-related-symbols wrong but I can't figure out what. This is with the GM release of Xcode 4.2 Build 4C199 iphone ios ios4 automatic ref counting xcode4.2 share improve this question ARC is supported on iOS 4.3 and above. You need to use the iOS 5.x SDK but can..
What is the difference between Objective-C automatic reference counting and garbage collection? http://stackoverflow.com/questions/7874342/what-is-the-difference-between-objective-c-automatic-reference-counting-and-garb is the difference between Objective C automatic reference counting and garbage collection With the new automatic reference counting ARC introduced in Xcode 4.2 we no longer need to manually.. difference between Objective C automatic reference counting and garbage collection With the new automatic reference counting ARC introduced in Xcode 4.2 we no longer need to manually manage retain release in Objective C. This seems similar to garbage.. Mac and in other languages. How does ARC differ from garbage collection iphone ios garbage collection automatic ref counting share improve this question the short and sweet answer is as follow GC of java is Runtime while ARC is compile time...
Retain Cycles: Why is that such a bad thing? http://stackoverflow.com/questions/791322/retain-cycles-why-is-that-such-a-bad-thing memory leaks. Leaks occur especially when objects are 'reference counted'. In a language or system that uses reference counting an object keeps track of the number of references pointing at it. Every time a reference is deleted the count goes down..
ARC forbids Objective-C objects in structs or unions despite marking the file -fno-objc-arc http://stackoverflow.com/questions/8093099/arc-forbids-objective-c-objects-in-structs-or-unions-despite-marking-the-file-f that if you mark it fno objc arc you don't have this restriction. iphone objective c struct ios5 automatic ref counting share improve this question If you got this message try __unsafe_unretained. It is only safe if the objects in the struct..
Why is object not dealloc'ed when using ARC + NSZombieEnabled http://stackoverflow.com/questions/8408071/why-is-object-not-dealloced-when-using-arc-nszombieenabled entirely possible that a good answer doesn't exist as this may be a bug in XCode. thanks all iphone ios automatic ref counting nszombieenabled share improve this question Turns out I've written some serious nonsense If zombies worked like I originally..
To ARC or not to ARC? What are the pros and cons? http://stackoverflow.com/questions/8760431/to-arc-or-not-to-arc-what-are-the-pros-and-cons in Java Have you been using ARC and if so how have you found it so far iphone objective c ipad ios5 automatic ref counting share improve this question There is no downside. Use it. Do it today. It is faster than your old code. It is safer..
Objective-C ARC: strong vs retain and weak vs assign http://stackoverflow.com/questions/8927727/objective-c-arc-strong-vs-retain-and-weak-vs-assign and retain in new projects or are the kind of being deprecated iphone objective c ios5 properties automatic ref counting share improve this question From the Transitioning to ARC Release Notes the example in the section on property attributes..
Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC? http://stackoverflow.com/questions/9119042/why-does-apple-recommend-to-use-dispatch-once-for-implementing-the-singleton-pat the whole point of Grand Central Dispatch. So why are they doing this iphone objective c ios singleton automatic ref counting share improve this question dispatch_once is absolutely synchronous. Not all GCD methods do things asynchronously case..
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 as if ARC do nothing else myObject release How can I do Please help me Thank you. iphone ios xcode automatic ref counting share improve this question You can use __has_feature like so #if __has_feature objc_arc ARC is On #else ARC is Off..
Batch adding “-fno-objc-arc” flag to (multiple) source files http://stackoverflow.com/questions/10184307/batch-adding-fno-objc-arc-flag-to-multiple-source-files &ldquo fno objc arc&rdquo flag to multiple source files After converting an Xcode project to ARC Automatic Reference Counting I need to disable ARC for some of my source files mainly third party code . I know I need to set the fno objc arc flag for..
what is the difference between strong (in LLVM) and retain( in GCC)? http://stackoverflow.com/questions/10299200/what-is-the-difference-between-strong-in-llvm-and-retain-in-gcc in GCC compiler iphone ios ios4 share improve this question strong is a new feature in iOS 5 Automatic Reference Counting ARC which behave the same as retain in iOS 4. Referenced Article. Also check out this other SO question @property definitions..
http://stackoverflow.com/questions/11194838/avaudioplayer-help-playing-multiple-sounds-simultaneously-stopping-them-all-at Help Playing multiple sounds simultaneously stopping them all at once and working around Automatic Reference Counting I am trying to create buttons that play single sound files and one button that stops all of the sounds that are currently.. After doing some research and testing I found that the audioPlayer variable is being released by Automatic Reference Counting. Also this code works when the audioPlayer variable is defined as an instance variable and a property in my interface file.. How can I play an infinite number of sounds at once using the AVAudioPlayer and sticking with Automatic Reference Counting Also When these sounds are playing how can I implement a second IBAction method to stop playing all of them iphone objective..
Xcode 5 without Storyboard and ARC http://stackoverflow.com/questions/17234172/xcode-5-without-storyboard-and-arc nav self.window makeKeyAndVisible return YES STEPS FOR REMOVE ARC 1 In build setting set Automatic Reference Counting to NO . END If you have Already Created Application with storyboard and ARC then STEPS FOR REMOVE STORY..
http://stackoverflow.com/questions/1761036/why-should-we-release
What are the key concepts for an iPhone Developer to learn? [closed] http://stackoverflow.com/questions/5677655/what-are-the-key-concepts-for-an-iphone-developer-to-learn elsewhere it will still have a reference from that point. ARC With the iOS 5 SDK Apple introduced Automatic Reference Counting. It's important to understand the basics of how this works even if you plan on working with manual reference counting. You..
iOS 5 Best Practice (Release/retain?) http://stackoverflow.com/questions/6308425/ios-5-best-practice-release-retain ref counting share improve this question It's up to you. You can write apps using ARC Automatic Reference Counting and Xcode will write glue code to allow your ARC enabled apps to run on iOS 4 no modifications required. However certain..
how to use delegates with Automatic Reference Counting http://stackoverflow.com/questions/6529191/how-to-use-delegates-with-automatic-reference-counting to use delegates with Automatic Reference Counting I've jumped on the ARC bandwagon. In the past I would have my delegate properties declared like this @property assign id..
Does iOS 5 have garbage collection? http://stackoverflow.com/questions/6576674/does-ios-5-have-garbage-collection you iphone objective c ios ios5 share improve this question You appear to be talking about Automatic Reference Counting mentioned in other answers. ARC is a kind of GC in that it automates memory freeing but has a number of differences from..
What is the strong property attribute http://stackoverflow.com/questions/6701023/what-is-the-strong-property-attribute
How do I replace weak references when using ARC and targeting iOS 4.0? http://stackoverflow.com/questions/6893038/how-do-i-replace-weak-references-when-using-arc-and-targeting-ios-4-0 my app to 4.3 and try compiling it. When I do so I get this error FlipsideViewController.m error Automatic Reference Counting Issue The current deployment target does not support automated __weak references It is referencing this line @synthesize..
ARC error when declaring delegate ivar http://stackoverflow.com/questions/7021852/arc-error-when-declaring-delegate-ivar _weak property 'itemDelegate' must be _weak . Anyone know what's wrong Thanks for your help. ARC Automatic Reference Counting iphone ios automatic ref counting share improve this question Try something like the following example from http vinceyuan.blogspot.com..
NSThreads in Automatic Reference Counting(ARC) http://stackoverflow.com/questions/7149403/nsthreads-in-automatic-reference-countingarc in Automatic Reference Counting ARC i am trying to use NSThreads with ARC in 4.3.5. With iOS 5 everything works perfect but if i try it on a older iOS..
Why a keyword “strong” is used on a property in non-ARC environment? http://stackoverflow.com/questions/7790407/why-a-keyword-strong-is-used-on-a-property-in-non-arc-environment to retain replacement in ARC environment but it's not the case because I didn't checked Use Automatic Reference Counting check box. iphone objective c properties automatic ref counting share improve this question The keyword Strong is a..
iPhone fetch data dictionary from keychain http://stackoverflow.com/questions/7827730/iphone-fetch-data-dictionary-from-keychain fetch data dictionary from keychain So I'm trying to convert an old project to Automatic Reference Counting. I'm trying to use the conversion tool that xCode has but it says to fix a couple things before it can convert. I have no..
Using Non-ARC Code in an ARC-Enabled Project - Adding Facebook http://stackoverflow.com/questions/8701780/using-non-arc-code-in-an-arc-enabled-project-adding-facebook illepmorgan Documents Projects illep untitled 20folder alphaproject alphaproject FBRequest.m error Automatic Reference Counting Issue Existing ivar '_delegate' for unsafe_unretained property 'delegate' must be __unsafe_unretained I need help i can't..
http://stackoverflow.com/questions/9139619/arc-circular-retain-detection circular retain detection I ported some old code over to Objective C ARC Automatic Reference Counting and it seems to work great. Except a rather large high level object is not being deallocated when it is popped off of my..
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