How To Use AVCaptureStillImageOutput To Take Picture

Question

I have a preview layer that is pulling from the camera and working as it should. I would like to be able to take a picture when I press a button. I have inited the AVCaptureStil

Answer 1

for swift version:

@IBAction func capture(sender: AnyObject) {

    var videoConnection :AVCaptureConnection?

    if let videoConnection = stillImageOutput.connectionWithMediaType(AVMediaTypeVideo){
        stillImageOutput.captureStillImageAsynchronouslyFromConnection(videoConnection, completionHandler: { (buffer:CMSampleBuffer!, error: NSError!) -> Void in

            if let exifAttachments = CMGetAttachment(buffer, kCGImagePropertyExifDictionary, nil) {
                let imageData = AVCaptureStillImageOutput.jpegStillImageNSDataRepresentation(buffer)
                self.previewImage.image = UIImage(data: imageData)
                UIImageWriteToSavedPhotosAlbum(self.previewImage.image, nil, nil, nil)
            }
        })
    }
}