All Questions
244 questions
1
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47
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How can I Intentionally create a Zombie Object in Swift [duplicate]
Just like the title says I'd like to know how I can create a Zombie Object in swift.
The reason I ask is because I'm trying to learn how to use the Zombie Instrument.
I have a sneaking suspicion that ...
- 7,857
2
votes
1
answer
662
views
iOS 14 crash zombie when use dispatch_semaphore
I handle some old code, it runs well, but now crash only on ios 14
here is the demo
static NSData *DownloadWithRange(NSURL *URL, NSError *__autoreleasing *error) {
NSMutableURLRequest *request = [[...
- 21
3
votes
1
answer
305
views
~500 NSZombie warnings on Xcode memory graph from iOS 13 application
When I build a memory graph of my app I see ~500 memory warnings. When I look these are all in the Malloc Blocks category and are all (mostly) prefixed with NSZombie. I'm assuming this is what it ...
user11693421
4
votes
2
answers
743
views
Why does object become NSZombie only when inherit from NSObject?
I created a new project, enabled Zombie Objects (Edit Scheme -> Diagnostics).
I initialized two objects: ZombieTest and ZombieTest2(inherit from NSObject).
After running the app, I opened debug memory ...
- 599
0
votes
2
answers
118
views
Why dose the NSString become NSZomie in this code?
I just ran into a problem.I use NSMutableArray to keep the Ad ids that need to be loaded. When one id is preloaded, I remove it from the array. Then I find out that, after remove, the unit id became ...
- 123
1
vote
1
answer
1k
views
Why NSInvocation return value creates a zombie?
I am trying to build a JavaScript to Native communication. For that purpose I need to execute dynamically a method on some class when JavaScript calls it.
I have a problem with NSInvocation getting ...
- 1,195
-1
votes
1
answer
74
views
In what situation will a NSZombie be created in an ARC environment?
In what situation will a NSZombie be created in an ARC environment?
That is, in ARC environment, how can an object be accessed or over-released after released?
- 2,174
-1
votes
1
answer
261
views
Crashing MapKit
I am currently working on a MapKit app, which puts custom annotations (locations) on a MapKit MapView. However, something is going wrong with placing the pins. The pins are in fact displayed on the ...
- 85
6
votes
4
answers
6k
views
How can I demonstrate a zombie object in Swift?
I've read How to demonstrate memory leak and zombie objects in Xcode Instruments? but that's for objective-c. The steps don't apply.
From reading here I've understood zombies are objects which are:
...
- 36.6k
0
votes
1
answer
58
views
EXC_BAD_ACCESS issue debugging
I sometimes get EXC_BAD_ACCESS without knowing the source.I enabled Zombies and this is now what I get on the console:
2018-08-27 18:37:41.785523+0530 MyProject[3419:1228271] *** -[MyProject....
- 6,691
0
votes
1
answer
1k
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Enabling Zombie Objects causing memory pressure crashing
My app is crashing when its deallocating a ViewController. I believe there is an object in there causing it - I am getting a EXC_BAD_ACCESS crash.
It happens usually after finishing a level of the ...
- 1,093
0
votes
0
answers
254
views
Over release a object in an dictionary that cause EXC_BAD_ACCESS error?
I have a object ECClient, it is retained by a dictionary in ECSignalingChannel and also by ECRoom.
Unfortunatly, ECClient crashes when it's being released.
I guess the reason it crashes is because it'...
- 2,174
9
votes
4
answers
1k
views
THREAD 1: EXC_BREAKPOINT CALayer removeAllAnimations message sent to deallocated
There are a lot of question with the same title but somehow I felt that every case is different as my problem is still not resolved and I've no clue why and also there are not enough solutions for ...
- 7,968
3
votes
1
answer
332
views
Do system object delegates in ARC need to be set to nil?
An app crashes sometimes with error objc_object::release().
The Apple Developer Technical Support mentioned this:
Remember that you should always do something like _tableView.delegate
= nil; in ...
- 15.1k
1
vote
3
answers
960
views
iOS Swift EXC_BAD_ACCESS code 2 SearchTextField (UITextField subclass)
I am relatively new to iOS development with Swift (I actually have 3 years of experience with Android development with Java, trying to learn a new technology). I am creating an app that requires the ...
- 169