如何从UIImagePickerController中选择任何视频或电影文件 [英] How to select any Video or Movie file from UIImagePickerController

问题描述

在我的应用中，我需要选择任何视频文件，并在应用程序中显示视频文件的URL。

In my app, i need to select any video file and show the display the url for a video file in the application.

-(void)viewDidLoad{

    [super viewDidLoad];

    self.imgPicker = [[UIImagePickerController alloc] init];
    self.imgPicker.delegate = self;
    self.imgPicker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
    self.imgPicker.mediaTypes = [NSArray arrayWithObjects:(NSString *)kUTTypeMovie, (NSString *)kUTTypeImage, nil];
    self.imgPicker.allowsEditing = NO;

    [self presentModalViewController:self.imgPicker animated:YES];
}

-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{

    [picker dismissModalViewControllerAnimated:YES];
}


-(void)imagePickerController:(UIImagePickerController *)picker
      didFinishPickingImage : (UIImage *)image
                 editingInfo:(NSDictionary *)editingInfo{

}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{

    value = 1;

    IMAGE_COUNTER = IMAGE_COUNTER + 1;

    NSString* mediaType = [info objectForKey:UIImagePickerControllerMediaType]; 
    if ( [mediaType isEqualToString:@"public.movie" ])
    {
        NSLog(@"Picked a movie at URL %@",  [info objectForKey:UIImagePickerControllerMediaURL]);
        NSURL *url =  [info objectForKey:UIImagePickerControllerMediaURL];
        NSLog(@"> %@", [url absoluteString]); 
    } 

    else
    {
        UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];

        NSData* imageData = UIImageJPEGRepresentation(image, 1.0);

        NSString* incrementedImgStr = [NSString stringWithFormat: @"UserCustomPotraitPic%d.jpg", IMAGE_COUNTER];

        NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        NSString* documentsDirectory = [paths objectAtIndex:0];

        NSString* fullPathToFile2 = [documentsDirectory stringByAppendingPathComponent:incrementedImgStr];
        [imageData writeToFile:fullPathToFile2 atomically:NO];
    }
}

我使用上面的代码显示图像和视频一切都很顺利，但是当我选择任何视频文件时，它没有来到UIImagePickerController委托方法，视频文件直接播放，我不想播放任何视频文件，当我选择任何视频文件时应该来在其委托属性中

I have used the above code to display image and video , every thing is coming fine, however when i select any video file, it didn't comes to UIImagePickerController Delegate Method, Video file directly plays, i don't want to play any video file, when i select any video file it should come in its delegate property

推荐答案

从iPhone库中挑选视频无法在iOS模拟器上运行。在真正的iPhone上试试吧。

Picking videos from the iPhone Library does not work on the iOS Simulator. Try it on a real iPhone.

以下是从我在项目中使用的iOS Photo Library中挑选视频的代码。只需将选择器中的视频方法添加到所需的按钮。

Here is the code for picking video from the iOS Photo Library which I have used in my projects. Just add video method from selector to your desired button.

- (void)video {
    UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
    imagePicker.delegate = self;
    imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    imagePicker.mediaTypes = [[NSArray alloc] initWithObjects:(NSString *)kUTTypeMovie,      nil];

    [self presentModalViewController:imagePicker animated:YES];
 }


- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    NSString *mediaType = [info objectForKey: UIImagePickerControllerMediaType];

    if (CFStringCompare ((__bridge CFStringRef) mediaType, kUTTypeMovie, 0) == kCFCompareEqualTo) {
        NSURL *videoUrl=(NSURL*)[info objectForKey:UIImagePickerControllerMediaURL];
        NSString *moviePath = [videoUrl path];

        if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum (moviePath)) {
            UISaveVideoAtPathToSavedPhotosAlbum (moviePath, nil, nil, nil);
        }
    }

    [self dismissModalViewControllerAnimated:YES];
    [picker release];
}

字符串 moviepath 为您提供所选视频的路径，可用于对该视频执行任何所需操作。

The string moviepath gives you the path of the selected video which can be used to perform any desired action with that video.

不要忘记添加 MobileCoreServices .framework 项目框架！然后像这样导入：

Don't forget to add the MobileCoreServices.framework Framework to your project! Then import it like this:

#import <MobileCoreServices/UTCoreTypes.h>

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