CODEWITHSUNDEEP
iosmemory-management
shawhu
shawhu

Reputation: 1237

Why the memory is still holding when I do removefromsuperview?

I'm currently working on a ipad project and found this. so here is my structure

i subclassed uiviewcontroller as customizedVC,like this

@protocol customizedVCDelegate

-(void)viewclosed:(UIView *)view oldviewcontroller:(UIViewController *)oldvc newvcname:(UIViewController *)newvc;

@end


@interface customizedVC : UIViewController {
    id <customizedVCDelegate> delegate;
}

@property (assign) id <customizedVCDelegate> delegate;

@end

in demoipadappDelegate, that is the backbone for switching views, i took the protocol and implemented the viewclosed function. I got a lot of views, each view will be loaded from nib. so i load the first one in demoipadappDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

    //loading openvinview
    openingVC *vc = [[openingVC alloc] initWithNibName:@"openingview" bundle:nil];
    vc.delegate = self; 
    [window addSubview:vc.view];
    [window makeKeyAndVisible];

    return YES;
}

to switch views, i will fire the viewClosed in each viewcontroller. for example, i got VC1 and want to swtich to VC2. i fire a viewClosed in vc1. and since vc1's delegate is demoipadappDelegate, infact all vc's delegate is demoipadappDelegate. so the demoipadappDelegate will received the event and do this. this is in demoipadappDelegate

-(void)viewclosed:(UIView *)view oldviewcontroller:(UIViewController *)oldvc newvcname:(UIViewController *)newvc;
{

    self.currentVC = (customizedVC *)newvc;
    self.currentVC.delegate = self;
    [window addSubview:self.currentVC.view];

    [view removeFromSuperview];
    [oldvc release];

}

I expected that the memery usage would drop. it didn't. I also checked that in each vc, I've already manually release anything i alloc. so that's not the case.

sorry for my poor english, i hope that i had explained clear enough

Upvotes: 1

Views: 150

Answers (1)

Jacob Relkin
Jacob Relkin

Reputation: 163228

Are you sure that you're using the right casing?

The method is called removeFromSuperview, not removefromsuperview.

Upvotes: 1

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