更改UIPrintInteractionController導航欄標題

Question

如何更改UIPrintInteractionController的導航欄標題（打印機選項）？

Answer 1

您可以使用UIPrintInteractionController的委託方法爲它的外觀變化，

- (UIViewController *)printInteractionControllerParentViewController: (UIPrintInteractionController *)printInteractionController 
{ 
    return self.navigationController; 
} 
- (void)printInteractionControllerDidPresentPrinterOptions:(UIPrintInteractionController *)printInteractionController 
{ 
    // self.navigationController.topViewController.navigationController.navigationBar.tintColor=[UIColor redColor]; 
    self.navigationController.navigationBar.tintColor = [UIColor greenColor]; 

    // self.navigationController.topViewController.navigationController.navigationBar.barTintColor=[UIColor purpleColor]; 
    self.navigationController.topViewController.navigationController.navigationBar.tintColor=[UIColor yellowColor]; 
} 

Answer 2

#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]}]; 
}