Login error after upgrading to iOS9

Question

After updating my application to iOS9 Iam, an error message appears in my application:

: objc [344]: It is not possible to form a weak link to an instance (0x15919e00) of the LoginVC class. This object may have been released or is in the process of being released.

Below is the function in which I get this error:

-(void)dismissLogin {
self.isLoggingIn = NO;
[self stopLoginAnimation];
[self dismissViewControllerAnimated:YES completion:NO];
[[NSNotificationCenter defaultCenter] removeObserver:self];
[self.appDelegate setLoginVC:nil];
[self.view removeFromSuperview];
//[APPDEL selectTabBar];
}

The application is stuck on the login screen and does not switch to the following screens.

This error is not included in iOS8. Can anyone help me with this problem.

Answer 1

Make sure you are not using an exempt instance.

. iOS 8, iOS 9. setDelegate .

-(void)setDelegate:(id<UICollectionViewDelegate>)delegate{
    _internalDelegate = delegate;
    [super setDelegate:self];
}

, iOS 9 -, . ,

-(void)setDelegate:(id<UICollectionViewDelegate>)delegate{
    _internalDelegate = delegate;
    if (delegate) {
        //Set delegate to self only if original delegate is not nil
        [super setDelegate:self];
    }else{
        [super setDelegate:delegate];
    }
}

Answer 2

, , . , , , , internalDelegate , .

, , nil internalDelegate. , , - .

• , weakSelf

@property (nonatomic, weak) LoginVC *weakSelf;

2. weakSelf self

 - (id)init {
    if ((self = [super init])) {
        self.weakSelf = self;
    }
}

- (void)setDelegate:(id)delegate {
    _internalDelegate = delegate;
    [super setDelegate:self.weakSelf];
}