iphone - 设置 UIImagePickerController 的 UIBarStyle

Question

我想将 a 的条形样式设置UIImagePickerController如下，但条形仍然是UIBarStyleBlackTranslucent. 是否可以设置栏样式UIImagePickerController？提前致谢！

UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;        
imagePicker.navigationBar.barStyle = UIBarStyleBlack;

编辑 1

我可以通过以下方式设置色调颜色：

imagePicker.navigationBar.tintColor = UIColorFromRGB(0xCC6600);

Answer 1

这对我有用（您需要测试navigationController的类，而不是正在呈现的viewController，并且您似乎还需要设置不透明的背景颜色）

- (void)navigationController:(UINavigationController *)navigationController
      willShowViewController:(UIViewController *)viewController
                    animated:(BOOL)animated
{
    if ([navigationController isKindOfClass:[UIImagePickerController class]])
    {
        navigationController.navigationBar.barStyle = UIBarStyleBlack;
        navigationController.navigationBar.backgroundColor = [UIColor blackColor];
    }
}

Answer 2

imagePicker.navigationBar.tintColor=[UIColor blackColor];

Answer 3

您可以通过实现UINavigationControllerDelegate方法来进行更改navigationController:willShowViewController:，如下所示：

- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController
            animated:(BOOL)animated {
    if([viewController isKindOfClass:[UIImagePickerController class]])
             navigationController.navigationBar.barStyle = UIBarStyleBlack;
 }