NavigationBar becomes black on pop

问题

Second Image

The issue is when i pop my controller the navigation bar becomes black which is very irritating. Help required!

回答1:

When you Pop Your Screen You get back to Previous Screen. In Preview screen you have to call this method in viewWillAppear.

-(void) viewWillAppear: (BOOL)animated{
    [self.navigationController setNavigationBarHidden:YES animated:animated];
    [super viewWillAppear:animated];
}

This will work for me.

回答2:

This is the Swift version of @Nikunj answer.

override func viewWillAppear(_ animated: Bool) {
    navigationController?.setNavigationBarHidden(true, animated: animated)
    super.viewWillAppear(animated)
}

来源：https://stackoverflow.com/questions/34654934/navigationbar-becomes-black-on-pop