iOS Memory Leak with Activity View - ios

Question

I just discovered a memory leak in my app but I'm not really sure how to go about fixing it. It involves an activity view which is used to share the url of the current article being viewed from an rss feed. I'm not really sure why the leak is happening. Any ideas or advice?
The method in question for the iPhone version is:
- (void) showMenu
{
NSURL *urlToShare = hackyURL;
NSArray *activityItems = #[urlToShare];
TUSafariActivity *activity = [[TUSafariActivity alloc] init];
UIActivityViewController *activityVC = [[UIActivityViewController alloc]initWithActivityItems:activityItems applicationActivities:#[activity]];
activityVC.excludedActivityTypes = #[UIActivityTypeAssignToContact, UIActivityTypePostToWeibo, UIActivityTypeSaveToCameraRoll];
[self presentViewController:activityVC animated:TRUE completion:nil];
}
EDIT: I've fixed the iPhone leak by changing the above code to this:
__block UIActivityViewController *activityVC = [[UIActivityViewController alloc]initWithActivityItems:activityItems applicationActivities:#[activity]];
activityVC.excludedActivityTypes = #[UIActivityTypeAssignToContact, UIActivityTypePostToWeibo, UIActivityTypeSaveToCameraRoll];
[self presentViewController:activityVC animated:YES completion:^{activityVC.excludedActivityTypes = nil; activityVC = nil;}];
The iPad version is essentially the same except that it uses a popover to display the activity view.
- (void)showMenu
{
NSURL *urlToShare = hackyURL;
NSArray *activityItems = #[urlToShare];
TUSafariActivity *activity = [[TUSafariActivity alloc] init];
UIActivityViewController *activityVC = [[UIActivityViewController alloc]initWithActivityItems:activityItems applicationActivities:#[activity]];
activityVC.excludedActivityTypes = #[UIActivityTypeAssignToContact, UIActivityTypePostToWeibo, UIActivityTypeSaveToCameraRoll];
if ([popover isPopoverVisible])
{
[popover dismissPopoverAnimated:YES];
popover = nil;
}
else
{
self.popover = [[UIPopoverController alloc]initWithContentViewController:activityVC];
[self.popover presentPopoverFromBarButtonItem:systemAction permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
}
}

Answer 1

I've fixed the iPhone leak by changing the above code to this:
__block UIActivityViewController *activityVC = [[UIActivityViewController alloc]initWithActivityItems:activityItems applicationActivities:#[activity]];
activityVC.excludedActivityTypes = #[UIActivityTypeAssignToContact, UIActivityTypePostToWeibo, UIActivityTypeSaveToCameraRoll];
[self presentViewController:activityVC animated:YES completion:^{activityVC.excludedActivityTypes = nil; activityVC = nil;}];
but I can't figure out how to fix the leak for the popover on iPad.

Answer 2

if ([self.popover isPopoverVisible])
{
[self.popover dismissPopoverAnimated:YES];
self.popover = nil;
}
else
{
self.popover = [[UIPopoverController alloc]initWithContentViewController:activityVC];
[self.popover presentPopoverFromBarButtonItem:systemAction permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
}
Hope it will resolve your issue.