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POUIViewController Retaining in ARC
 

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  1. POUIViewController Retaining in ARC
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    <p>I have a subclass of UIViewController -> MyPopUpViewController</p> <pre><code>@protocol MyPopUpViewController Delegate; @interface MyPopUpViewController : UIViewController { } @property (nonatomic, strong) id &lt;MyPopUpViewControllerDelegate&gt; delegate; -(IBAction) buttonPressed:(id)sender; @end @protocol MyPopUpViewControllerDelegate -(void) popupButtonPressed: (MyPopUpViewController*)controller; @end </code></pre> <p>I cannot have this MyPopUpViewController as an instance variable because this comes externally, and there could be many and multiple of these popups can be up. So far I tried this, and it crashes on the delegate call due to not being retained:</p> <p>MyMainViewController:</p> <pre><code>-(void)externalNotificationReceived: (NSString*) sentMessage { MyPopUpViewController *popupView = [[MyPopUpViewController alloc] init]; popupView.delegate = self; [self.view addSubview:popupView.view]; [popupView setInfo :sentMessage :@"View" :@"Okay"]; popupView.view.frame = CGRectMake(0, -568, 320, 568); popupView.view.center = self.view.center; } -(void)popupButtonPressed:(MyPopUpViewController *)controller :(int)sentButtonNumber { NSLog(@"Popup Delegate Called"); [controller.view removeFromSuperview]; controller.delegate = nil; controller = nil; } </code></pre> <p>Once the popup comes up, and when the ok button is tapped, it crashes and never gets to that NSLog. How can I change </p> <p>MyPopUpViewController *popupView = [[MyPopUpViewController alloc] init];</p> <p>..so it would retain without making it an instance variable?</p> <p>Thanks in advance.</p>
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    1. USDamian Yerrick
    1. USGizmodo
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    1. COI doubt with this line `[popupView setInfo :sentMessage :@"View" :@"Okay"];`
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      1. USβhargavḯ
    2. COYea... that line is probably problematic. But also... how does `MyPopUpViewController.m` look? Specifically, the method in which you're calling `popupButtonPressed:` on the delegate?
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      1. USnhgrif
    3. CO@nhgrif There is nothing wrong with the `setInfo:::` method other than the horrible name.
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      1. USrmaddy
 

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