Completion handler is not called on iOS7 GM

Question

I\'m using AVAssetWriter, and it is perfectly working on iOS6.

The problem is, when I called finishWritingWithCompletionHandler, the completion handler

Answer 1

Ray Fix, you are right. We need to retain assetWriter. The easiest way is to use it inside the finishWritingWithCompletionHandler block:

        NSError *error = nil;

        AVAssetWriter *videoWriter = [[AVAssetWriter alloc] initWithURL:[NSURL fileURLWithPath:path]
                                                                   fileType:AVFileType3GPP
                                                                      error:&error];
        //startWriting, session etc.  

        [videoWriter finishWritingWithCompletionHandler:^{
                NSLog(@"%@",videoWriter);
                NSLog(@"Write Ended");
            }];