#import "file_view_controller.h"
@interface DocViewController ()
@end
@implementation DocViewController
#pragma mark -
#pragma mark View Life Cycle
- (void)viewDidLoad {
    [super viewDidLoad];
}
#pragma mark -
#pragma mark Document Interaction Controller Delegate Methods
- (UIViewController *) documentInteractionControllerViewControllerForPreview: (UIDocumentInteractionController *) controller {
    //return [[[[UIApplication sharedApplication]windows] firstObject]rootViewController];
    return self;
}
- (void)documentInteractionControllerDidEndPreview:(UIDocumentInteractionController *)controller
{
    [self removeFromParentViewController];
}
@end