Restore navigationBar background image after setting it to [UIImage new]

Question

I needed a completely transparent navigation bar for the mapView so I did this:

[self.navigationController.navigationBar setBackgroundImage:[UIImage new] forBarM         


        

Answer 1

by the way, you get get the original background image by using function

UIImageView *imageView = [self.navigationController.navigationBar
backgroundImageForBarMetrics:UIBarMetricsDefault];

and store the image somewhere, then you use

[self.navigationController.navigationBar setBackgroundImage:imageView 
forBarMetrics:UIBarMetricsDefault];

to set it back,but most time, set to nil will solve your problem.