.m

- (void)handlePan:(UIPanGestureRecognizer *)recognizer
{
    CGPoint translation = [recognizer translationInView:self.view.superview];

    if (recognizer.state == UIGestureRecognizerStateBegan)
    {
        [self panningBegan];
    }
    if (recognizer.state == UIGestureRecognizerStateEnded)
    {
        CGPoint velocity = [recognizer velocityInView:self.view];
        [self panningEndedWithTranslation:translation velocity:velocity];
    }
    else
    {
        CGPoint translation = [recognizer translationInView:self.view.superview];
        [self panningChangedWithTranslation:translation];
    }
}

The translation is declared twice, in line 3 and 16.