问更改UIPrintInteractionController导航栏标题

EN

#pragma mark - Print Delegate -

- (UIViewController *)printInteractionControllerParentViewController:(UIPrintInteractionController *)printInteractionController {

    return self.navigationController;
}

- (void)printInteractionControllerDidPresentPrinterOptions:(UIPrintInteractionController *)printInteractionController {

 [[UIApplication sharedApplication]setStatusBarStyle:UIStatusBarStyleLightContent];
    self.navigationController.navigationBar.barTintColor = AppColor;
    self.navigationController.topViewController.navigationController.navigationBar.tintColor=[UIColor whiteColor];

 [[UINavigationBar appearance] setTitleTextAttributes:
     @{NSForegroundColorAttributeName: [UIColor whiteColor]}];
}