I use the following code to customize the back button on the navigation bar throughout my application:
UIImage *backButton = [[UIImage imageNamed:@"backButton"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0)];
UIImage *backButtonOn = [[UIImage imageNamed:@"backButton_on"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0)];
[[UIBarButtonItem appearance] setBackButtonBackgroundImage:backButton
forState:UIControlStateNormal
barMetrics:UIBarMetricsDefault];
[[UIBarButtonItem appearance] setBackButtonBackgroundImage:backButtonOn
forState:UIControlStateHighlighted
barMetrics:UIBarMetricsDefault];
It's working great except when I present a UIImagePickerController and enter an album in the photo library the back button is also the customized back button. How can I get back the original back button in the image picker?
Try using this:
[[UINavigationBar appearanceWhenContainedIn:[YourClassThatsNotAUIImagePicker class], nil] setBackButtonBackgroundImage:someOtherImage forBarMetrics:UIBarMetricsDefault];
That should limit your appearance setting to only the classes you list and therefore leave the UIImagePickerController alone.
[[UIBarButtonItem appearanceWhenContainedIn:[UIImagePickerController class], nil] setBackButtonBackgroundImage:[UIImage imageNamed:@"blank-button"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
this is the correct way
1.for swift and ios9(the above answer will be like) --
UIBarButtonItem.appearanceWhenContainedInInstancesOfClasses([UIImagePickerController.self]).setBackButtonBackgroundImage(UIImage(named: "blank-button"), forState: UIControlState.Normal, barMetrics: UIBarMetrics.Default)
2.if you want to modify backIndicatorImage of UINavigationBar
UINavigationBar.appearanceWhenContainedInInstancesOfClasses([UIImagePickerController.self]).backIndicatorImage = UIImage(named: "backButton")//or nil
3.if you want to modify backIndicatorTransitionMaskImage
UINavigationBar.appearanceWhenContainedInInstancesOfClasses([UIImagePickerController.self]).backIndicatorTransitionMaskImage =UIImage(named: "backButton")// nil
来源:https://stackoverflow.com/questions/13405390/customized-back-button-appears-on-uiimagepickercontroller