What exactly happens when these lines of code is run + iPhone -

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visitwebsitevc *visitwebsite = [[[visitwebsitevc alloc] initwithnibname:@"visitwebsitevc" bundle:nil] retain];             [self.navigationcontroller pushviewcontroller:visitwebsite animated:yes];             [visitwebsite dealloc];

what happen due [visitwebsite dealloc].

first of should never invoke dealloc method (except [super dealloc] in dealloc).

you code should throw bad_access exception

(retain count) alloc = 1 retain +1 = 2 push +1 = 3 dealloc = 0

but visitwebsitevc instance still in use navigation controller

what should :

visitwebsitevc *visitwebsite = [[visitwebsitevc alloc] initwithnibname:@"visitwebsitevc" bundle:nil];             [self.navigationcontroller pushviewcontroller:visitwebsite animated:yes];             [visitwebsite release];

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