CODEWITHSUNDEEP
ioscocoa-touchuinavigationbar
V.J
V.J

Reputation: 189

iOS navigation bar subview reappear after removing

I am adding a view to the navigation bar

UIView *mySubView = [UIView alloc] initwithFrame:frame];
[self.navigationController.navigationBar addSubview:mySubView];

I want to remove the view before pushing to secondviewController.

[mySubView removeFromSuperView];

When App launch first time it did not remove the view, so view also visible on secondview navigation bar

I searched and tried many approaches, but didn't find any solution.

Upvotes: 0

Views: 3378

Answers (4)

Paresh Hirpara
Paresh Hirpara

Reputation: 487

  -(void)viewWillDisappear:(BOOL)animated    
      {
        [self.mySubView removeFromSuperview];
      //[_mySubView removeFromSuperview];

    }

Upvotes: 0

viral
viral

Reputation: 4208

Do following for the ViewController in which you are having subView for NavigationBar

in .h

@property (nonatomic, retain) UIView *mySubView;

in .m

- (void)viewDidLoad {
    //Your Existing Code + following 2 lines
    self.mySubView = [[UIView alloc] initWithFrame:yourFrame];
    self.mySubView.backgroundColor = [UIColor whiteColor];
}

- (void)viewWillAppear:(BOOL)animated {
    //Your Existing Code + following 1 line
    [self.navigationController.navigationBar addSubview:self.mySubView];
}

- (void)viewWillDisappear:(BOOL)animated {
    //Your Existing Code + following 1 line
    [self.mySubView removeFromSuperview];
}

And you are good to go. Tried and tested.

Upvotes: 0

ios_av
ios_av

Reputation: 324

Add a value to the tag property of the views you want to remove and check for it before removing the the subview, for example, assuming that you add a non-zero value to your subviews:

 for (UIView *view in self.navigationController.navigationBar.subviews) {
if (view.tag != 0) {
    [view removeFromSuperview];
     }
}

Try this it will help !!!!

Upvotes: 2

Nishant Tyagi
Nishant Tyagi

Reputation: 9913

Assign a tag to you mysubview like

UIView *mySubView = [UIView alloc] initwithFrame:frame];
mySubView.tag =1;
[self.navigationController.navigationBar addSubview:mySubView];

Then add this line when you push to secondViewController.

[[self.navigationController.navigationBar viewWithTag:1] removeFromSuperview];

Hope it helps you.

Upvotes: 4

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