Why do I have a memory leak in UIApplication
I have an iphone app project. I analysed it using instruments memory leak tool. According to instruments I have 2 leaks the Trace is as follows:
start main UIAplicationMain _run CFRunLoopInMode开发者_StackOverflow中文版 CFRunLoopRunSpecific PurpleEventCallback _UIAplicationHandleEvent sendEvent: handleEvent:withNewEvent:
After this trace there are two separate traces. What causes this and how can I fix it?
edit: The leak is on the second line according to instruments
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
int retVal = UIApplicationMain(argc, argv, nil, nil); //leak
[pool release];
return retVal;
Are you missing a NSAutoReleasePool
for the threads?
That second method looks like some sort of callback being invoked by another component or system thread.
In the implementation, create a NSAutoReleasePool
at the top and release it when the method is done:
void MyCallback {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
// do stuff
[pool release];
}
It might be a false positive. UIApplicationMain probably creates a few objects that are intended to hang around for as long as the application exists and therefore never bothers to release them.
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