ios - 选择视频时是否可以更改 `UIImagePickerController` 的标题？

我有开放的照片库来选择视频。这是我的代码:

- (void)selectMediaFromUIImagePickerControllerSourceType)sourceType {
     UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
    imagePicker.sourceType = sourceType;
    imagePicker.delegate = self;
    //imagePicker.allowsEditing = YES;

    if (selectedMediaType == MediaVideos) {
        imagePicker.mediaTypes = @[(NSString *)kUTTypeMovie, (NSString *)kUTTypeVideo];
        if (sourceType == UIImagePickerControllerSourceTypeCamera) {
            imagePicker.cameraCaptureMode = UIImagePickerControllerCameraCaptureModeVideo;
        }
    }
    else if (selectedMediaType == MediaPhotos) {
        imagePicker.mediaTypes = @[(NSString *)kUTTypeImage];
        if (sourceType == UIImagePickerControllerSourceTypeCamera) {
            imagePicker.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto;
        }
    }

    if (IS_IPHONE) {
        [self presentViewController:imagePicker animated:TRUE completion:nil];
    }
    else {
        dispatch_async(dispatch_get_main_queue(), ^{

            [self setModalPresentationStyle:UIModalPresentationFormSheet];
            [self presentViewController:imagePicker animated:TRUE completion:nil];
        });
    }
}

它总是将 UIImagePickerController 的标题显示为 Photos，请参见我附上的截图。

但是，我打开 iPhone 默认 照片应用程序 并检查，显示视频文件夹:见下文

那为什么它不显示 Videos 标题？我们可以改变它吗？

---

Best Answer-推荐答案

是的，您可以更改所需的导航标题。

添加UINavigationControllerDelegate

的委托(delegate)

Swift 3.0

func navigationController(_ navigationController: UINavigationController, willShow viewController: UIViewController, animated: Bool){
    viewController.navigationItem.title = "Kirit Modi"
}

Objective-C

- (void)navigationControllerUINavigationController *)navigationController willShowViewControllerUIViewController *)viewController animatedBOOL)animated{
    [viewController.navigationItem setTitle"Kirit Modi"];
}

查看输出:

关于ios - 选择视频时是否可以更改 `UIImagePickerController` 的标题？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/46599848/