更改UIImagePickerController的NavigationBar标题

Question

我想知道如何更改UIImagePickerController的导航栏标题。我尝试了几种方法，但无法做到。

尝试了以下方式，

imgPicker.title = [NSString stringWithString:@"My Name"];
imgPicker.navigationItem.title = [NSString stringWithString:@"My Name"];

但它仍然给我一个名为“相册”的默认标题。任何人都可以告诉我该怎么做？....

谢谢....

Answer 1

我找到了做到这一点的方法。当您将UIImagePickerController委托设置为self并实现以下方法时，它可以正常工作。

- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
    [viewController.navigationItem setTitle:@""];
}

从这个链接找到它http://forums.macrumors.com/showthread.php?t=533216

谢谢...

Answer 2

这应该允许你设置标题（以前的答案有一个错字）：

- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
    [viewController.navigationItem setTitle:@"Choose A Photo"];
}

Answer 3

迅速

IOS 8 || 9

func navigationController(navigationController: UINavigationController, willShowViewController viewController: UIViewController, animated: Bool) 
  {
    viewController.navigationItem.title = "video" // Change title
    imagePicker.navigationBar.tintColor = .whiteColor() //Text Color
    imagePicker.navigationBar.titleTextAttributes = [
        NSForegroundColorAttributeName : UIColor.whiteColor()
    ]

  }