Question

我使用以下代码来呈现UIImagePickerController。对于某些特定情况，我只想要视频。并使用以下代码。

UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.modalPresentationStyle = UIModalPresentationCurrentContext;
imagePickerController.sourceType = sourceType;
imagePickerController.delegate = self;
imagePickerController.allowsEditing=NO;

imagePickerController.mediaTypes=[[NSArray alloc] initWithObjects:(NSString *)kUTTypeMovie,nil];

[self presentViewController:imagePickerController animated:YES completion:nil];

但是它在桌面视图中显示了相机胶卷，我的照片流和视频。如果我打开任何文件夹，内容只是视频。我想要只有视频我怎样才能实现这一点。还有标题照片，我想改变它也toVideos。

Answer 1

Swift 3更新：

let videoPicker = UIImagePickerController()  
videoPicker.delegate = self
videoPicker.sourceType = .photoLibrary
videoPicker.mediaTypes = [kUTTypeMovie as String]
self.present(videoPicker, animated: true, completion: nil)

导入导入MobileCoreServices 并在顶部添加代理 UIImagePickerControllerDelegate 和 UINavigationControllerDelegate

呈现的模态将具有“照片”标题。您可以这样更改：

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

Answer 2

#import <MobileCoreServices/MobileCoreServices.h>

和

[controller setMediaTypes:@[(NSString *)kUTTypeMovie]];

Answer 3

您无法一次性获取所有视频集（从相机胶卷，照片库），您需要导航到＃34;相机胶卷＆＃34;，＆＃34;照片库＆＃34;选择所需的视频。

您可以选择以下任何枚举的源类型

typedef NS_ENUM(NSInteger, UIImagePickerControllerSourceType) {
    UIImagePickerControllerSourceTypePhotoLibrary,
    UIImagePickerControllerSourceTypeCamera,
    UIImagePickerControllerSourceTypeSavedPhotosAlbum
};

并设置所需的媒体类型。

仅在UIImagePickerController中显示视频

3 个答案: