2014/10/15 下午 10:13:15

iphone Programming Glossary: releasing

Do I need to disable NSLog before release Application?

http://stackoverflow.com/questions/2025471/do-i-need-to-disable-nslog-before-release-application

I need to disable NSLog before release Application When releasing an app for iPhone if I disable NSLog will it perform better iphone nslog share improve this question..

Objective-C - When to use 'self'

http://stackoverflow.com/questions/2385980/objective-c-when-to-use-self

any additional code that might be built into UIApplication's setMainViewController method such as releasing old objects retaining new ones updating internal variables and so on. In the case where your accessing..

didFinishPickingMediaWithInfo return nil photo

http://stackoverflow.com/questions/3088874/didfinishpickingmediawithinfo-return-nil-photo

YES picker release In all of those cases the image will be nil. However via the magic of releasing the UIImagePickerController first... This DOES work void imagePickerController UIImagePickerController..

What work has been done on cross-platform mobile development? [closed]

http://stackoverflow.com/questions/51988/what-work-has-been-done-on-cross-platform-mobile-development

android blackberry mobile webos share improve this question The HTML5 standard has support for releasing stand alone HTML5 apps. Essentially a HTML5 app is a bundle of HTML5 JavaScript and CSS files that will..

Understanding reference counting with Cocoa and Objective-C

http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c

because you've freed memory they were using. Assuming everyone is playing along and retaining releasing according to the rules when one piece of code retains and then releases the object any other piece of.. We want to return s but we've upped its reference count. The caller shouldn't be responsible for releasing it since we're the ones that created it. If we call release however the reference count will hit zero.. before returning the string. By explicitly calling autorelease we pass the responsibility for releasing the string on to the thread's NSAutoreleasePool which will happen at some later time. The consequence..

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

at the moment was written pre iOS 5.0. I was just wondering does the convenience of not retaining releasing manually and presumably more reliable code that comes as a result outweigh any 'cost' of using ARC What..

Do I need to disable NSLog before release Application?

http://stackoverflow.com/questions/2025471/do-i-need-to-disable-nslog-before-release-application

I need to disable NSLog before release Application When releasing an app for iPhone if I disable NSLog will it perform better iphone nslog share improve this question One way to do it is to go into your Build settings and..

Objective-C - When to use 'self'

http://stackoverflow.com/questions/2385980/objective-c-when-to-use-self

mainViewController instance variable directly skipping over any additional code that might be built into UIApplication's setMainViewController method such as releasing old objects retaining new ones updating internal variables and so on. In the case where your accessing the frame you're still calling a setter method mainViewController.view.frame..

didFinishPickingMediaWithInfo return nil photo

http://stackoverflow.com/questions/3088874/didfinishpickingmediawithinfo-return-nil-photo

picker dismissModalViewControllerAnimated YES picker release In all of those cases the image will be nil. However via the magic of releasing the UIImagePickerController first... This DOES work void imagePickerController UIImagePickerController picker didFinishPickingMediaWithInfo NSDictionary info picker..

What work has been done on cross-platform mobile development? [closed]

http://stackoverflow.com/questions/51988/what-work-has-been-done-on-cross-platform-mobile-development

multiple mobile platforms is also interesting. iphone android blackberry mobile webos share improve this question The HTML5 standard has support for releasing stand alone HTML5 apps. Essentially a HTML5 app is a bundle of HTML5 JavaScript and CSS files that will run stand alone in the browser of the desktop or device...

Understanding reference counting with Cocoa and Objective-C

http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c

doesn't need to worry about other parts of the system crashing because you've freed memory they were using. Assuming everyone is playing along and retaining releasing according to the rules when one piece of code retains and then releases the object any other piece of code also referencing the object will be unaffected. What.. s NSString alloc initWithString @ Hello World Now what We want to return s but we've upped its reference count. The caller shouldn't be responsible for releasing it since we're the ones that created it. If we call release however the reference count will hit zero and bad memory will be returned to the caller. The answer.. be returned to the caller. The answer is to call autorelease before returning the string. By explicitly calling autorelease we pass the responsibility for releasing the string on to the thread's NSAutoreleasePool which will happen at some later time. The consequence is that the returned string will still be valid for the caller..

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

since the majority of the code in the project I'm working on at the moment was written pre iOS 5.0. I was just wondering does the convenience of not retaining releasing manually and presumably more reliable code that comes as a result outweigh any 'cost' of using ARC What are your experiences of ARC and would you recommend it So..

Memory Management in Objective-C [duplicate]

http://stackoverflow.com/questions/106627/memory-management-in-objective-c

there a good resource anyone can point me to for some basic memory management techniques in ObjectiveC ex. retaining releasing autoreleasing For instance is it completely illegal to use a pointer to an Objective C object and treat it as an array Are.. resource anyone can point me to for some basic memory management techniques in ObjectiveC ex. retaining releasing autoreleasing For instance is it completely illegal to use a pointer to an Objective C object and treat it as an array Are you forced..

What happens if I don't retain IBOutlet?

http://stackoverflow.com/questions/1250518/what-happens-if-i-dont-retain-iboutlet

the text field. While it is possible to write a correct program in this case its easy to make the error of over releasing the text field in the viewDidUnload method. Over releasing an object is a crash inducing error setting a property that is.. program in this case its easy to make the error of over releasing the text field in the viewDidUnload method. Over releasing an object is a crash inducing error setting a property that is already nil again to nil is not. My description may have..

iPhone - dealloc - Release vs. nil

http://stackoverflow.com/questions/1458178/iphone-dealloc-release-vs-nil

dealloc share improve this question What you have seen is probably these 1 foo release 2 self.bar nil 3 baz nil Is releasing the object accessing it through the instance variable foo . The instance variable will become a dangling pointer. This is..

Break on EXC_BAD_ACCESS in XCode?

http://stackoverflow.com/questions/1622079/break-on-exc-bad-access-in-xcode

a message to a released object. The BEST way to track these down is use NSZombieEnabled . This works by never actually releasing an object but by wrapping it up as a zombie and setting a flag inside it that says it normally would have been released...

Do I need to disable NSLog before release Application?

http://stackoverflow.com/questions/2025471/do-i-need-to-disable-nslog-before-release-application

I need to disable NSLog before release Application When releasing an app for iPhone if I disable NSLog will it perform better iphone nslog share improve this question One way to do..

Why am I crashing after MKMapView is freed if I'm no longer using it?

http://stackoverflow.com/questions/2188098/why-am-i-crashing-after-mkmapview-is-freed-if-im-no-longer-using-it

will prevent MKMapView from sending messages to it. This is documented in MKMapViewDelegate Protocol Reference Before releasing an MKMapView object for which you have set a delegate remember to set that object 䏭 delegate property to nil. One place..

Objective-C - When to use 'self'

http://stackoverflow.com/questions/2385980/objective-c-when-to-use-self

skipping over any additional code that might be built into UIApplication's setMainViewController method such as releasing old objects retaining new ones updating internal variables and so on. In the case where your accessing the frame you're..

unrecognized selector sent to instance

http://stackoverflow.com/questions/2455161/unrecognized-selector-sent-to-instance

didFinishPickingMediaWithInfo return nil photo

http://stackoverflow.com/questions/3088874/didfinishpickingmediawithinfo-return-nil-photo

How many times do I release an allocated or retained object?

http://stackoverflow.com/questions/3730804/how-many-times-do-i-release-an-allocated-or-retained-object

an iPhone game. I want to release all objects that have been allocated or retained. In the dealloc function I am releasing all such objects but then I realized that sometimes I end up releasing objects when they have not been allocated yet. So.. or retained. In the dealloc function I am releasing all such objects but then I realized that sometimes I end up releasing objects when they have not been allocated yet. So I figured I need to check if its retainCount is greater than zero or not..

Downloading a Large File - iPhone SDK

http://stackoverflow.com/questions/4002979/downloading-a-large-file-iphone-sdk

NSURLConnection connection finished downloading the data cleaning up self.response nil Delegate is responsible for releasing data if self.delegate NSData theData self.data retain DELEGATE_CALLBACK didReceiveData theData self.urlconnection unscheduleFromRunLoop..

What work has been done on cross-platform mobile development? [closed]

http://stackoverflow.com/questions/51988/what-work-has-been-done-on-cross-platform-mobile-development

iphone android blackberry mobile webos share improve this question The HTML5 standard has support for releasing stand alone HTML5 apps. Essentially a HTML5 app is a bundle of HTML5 JavaScript and CSS files that will run stand alone..

Understanding reference counting with Cocoa and Objective-C

http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c

of the system crashing because you've freed memory they were using. Assuming everyone is playing along and retaining releasing according to the rules when one piece of code retains and then releases the object any other piece of code also referencing.. Hello World Now what We want to return s but we've upped its reference count. The caller shouldn't be responsible for releasing it since we're the ones that created it. If we call release however the reference count will hit zero and bad memory will.. is to call autorelease before returning the string. By explicitly calling autorelease we pass the responsibility for releasing the string on to the thread's NSAutoreleasePool which will happen at some later time. The consequence is that the returned..

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

I'm working on at the moment was written pre iOS 5.0. I was just wondering does the convenience of not retaining releasing manually and presumably more reliable code that comes as a result outweigh any 'cost' of using ARC What are your experiences..

How to find the cause of a malloc “double free” error?

http://stackoverflow.com/questions/971249/how-to-find-the-cause-of-a-malloc-double-free-error

malloc_error_break to debug It is happening when I release an NSAutoreleasePool and I can't figure out what object I'm releasing twice. How do I set his breakpoint Is there a way to know what is this object 0x1068310 thanks in advance Gonso iphone..