Self destructing message app - Inbox ios7 error

It's unfortunately a bit tricky to get working. I have yet to find a way that makes it work exactly like it did in iOS 6, but it doesn't need to work exactly the same. If you want to get a thumbnail for use somewhere, follow these steps:

Step 1<br/> Paste the method from the answer Amit linked to in your view controller implementation file as a new method. Use this code as I added a line for appliesPreferredTrackTransform to maintain portrait videos:

- (UIImage *)thumbnailFromVideoAtURL:(NSURL *)url
{
    AVAsset *asset = [AVAsset assetWithURL:url];

    //  Get thumbnail at the very start of the video
    CMTime thumbnailTime = [asset duration];
    thumbnailTime.value = 0;

    //  Get image from the video at the given time
    AVAssetImageGenerator *imageGenerator = [[AVAssetImageGenerator alloc] initWithAsset:asset];
    imageGenerator.appliesPreferredTrackTransform = YES;

    CGImageRef imageRef = [imageGenerator copyCGImageAtTime:thumbnailTime actualTime:NULL error:NULL];
    UIImage *thumbnail = [UIImage imageWithCGImage:imageRef];
    CGImageRelease(imageRef);

    return thumbnail;
}

Step 2<br/> Add AVFoundation framework to your project. Click on the Project > Build Phases > Link Binary with Libraries and then click on the plus sign to add AVFoundation.framework.

Step 3<br/> Import the framework header in your view controller:

#import <AVFoundation/AVFoundation.h>

Step 4<br/> Get a UIImage view using the new method. Put this where you currently have the line for thumbnailImageAtTime:

UIImage *thumbnail = [self thumbnailFromVideoAtURL:self.moviePlayer.contentURL];

Step 5<br/> Use the thumbnail wherever you need it. I haven't yet gotten it to load instead of the black screen yet, but you can kind of do it by adding this code:

UIImageView *imageView = [[UIImageView alloc] initWithImage:thumbnail];
[self.moviePlayer.backgroundView addSubview:imageView];

That method is deprecated. See: http://stackoverflow.com/questions/19212397/taking-thumbnail-image-from-video-always-returns-null/19272872#19272872

What about:

[self.moviePlayer requestThumbnailImagesAtTimes:[NSArray arrayWithObjects:0, nil] timeOption:MPMovieTimeOptionNearestKeyFrame];

Thank you I saw that. But i don't understand. :(

Should i just replace: [self.moviePlayer thumbnailImageAtTime:0 timeOption:MPMovieTimeOptionNearestKeyFrame];

With:

- (UIImage *)thumbnailFromVideoAtURL:(NSURL *)url
{
    AVAsset *asset = [AVAsset assetWithURL:url];

    //  Get thumbnail at the very start of the video
    CMTime thumbnailTime = [asset duration];
    thumbnailTime.value = 0;

    //  Get image from the video at the given time
    AVAssetImageGenerator *imageGenerator = [[AVAssetImageGenerator alloc] initWithAsset:asset];

    CGImageRef imageRef = [imageGenerator copyCGImageAtTime:thumbnailTime actualTime:NULL error:NULL];
    UIImage *thumbnail = [UIImage imageWithCGImage:imageRef];
    CGImageRelease(imageRef);

    return thumbnail;
}

Thanks. I'm doing the Self destructing message app so I want it like that. I get an error when i delete the old code with this new one. :( How would it look like in code with the Self destructing message app?

Thank you so much Ben! It works perfectly!

So, I'm a bit lost - do we have a conclusive answer for including video in the app for iOS7?

Great thanks Ben Jakuben, I'm going to continue - nearly completed :)

Just replace the line with [self.moviePlayer requestThumbnailImagesAtTimes:@[@0] timeOption:MPMovieTimeOptionNearestKeyFrame];