ios - 使用未声明的标识符 'kUTTypeMovie'

Question

我收到错误消息 - 使用未声明的标识符“kUTTypeMovie”

在下面的代码中 -

-(IBAction)selectVideo:(id)sender {
    UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
    imagePicker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
    imagePicker.mediaTypes = [[NSArray alloc] initWithObjects:(NSString *)kUTTypeMovie, nil];

    imagePicker.delegate = self;
    [self presentModalViewController:imagePicker animated:YES];
}

这是怎么回事？

Answer 1

您必须将框架 MobileCoreServices 添加到项目中，然后将其导入:

objective-c :

#import <MobileCoreServices/MobileCoreServices.h>

这将使问题消失。

swift 4:

import MobileCoreServices