How to select any Video or Movie file from UIImage

问题:

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];
    }
}

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

回答1:

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

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];
}

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

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

#import <MobileCoreServices/UTCoreTypes.h>

回答2:

try this:-

   UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
    imagePicker.delegate = self;
    imagePicker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
    imagePicker.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeMovie];
    NSArray *sourceTypes = [UIImagePickerController availableMediaTypesForSourceType:imagePicker.sourceType];
    if (![sourceTypes containsObject:(NSString *)kUTTypeMovie ])
    {
        //NSLog(@"no video");
    }


    [self presentModalViewController:imagePicker animated:YES];

In delegate method:-

 - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
    {
            NSString *type = [info objectForKey:UIImagePickerControllerMediaType];
            //NSLog(@"type=%@",type);
            if ([type isEqualToString:(NSString *)kUTTypeVideo] || 
                [type isEqualToString:(NSString *)kUTTypeMovie])
            {// movie != video
                NSURL *urlvideo = [info objectForKey:UIImagePickerControllerMediaURL];
}
    }

回答3:

@Dinesh Kaushik's code help to with the same problem I had.

I changed :

 //NSArray * availableMediaTypes = [UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
        //imagePickerController.mediaTypes = availableMediaTypes;

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

and only this way, I can see the video and select it. strange

回答4:

Swift 3 update :

func galleryVideo() 
{        
    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.savedPhotosAlbum) {

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

Import import MobileCoreServices and adding delegates UIImagePickerControllerDelegate and UINavigationControllerDelegate .

回答5:

Do not use UIImagePicker, just use assetlibrary, implement custom video picker, access to selected video file directly, save the video file and compess the file if you want..