In my app there is a image view.Im adding PAN gesture to that image view.
This is working fine.
The image view is in landscape mode.
I want to increase a count in label while user pan to right direction and decrease that count while user pan to left direction.
I googled a lot but didn't find a solution for this.
Can anyone please help me how to detect the direction in which the user is panning(left/right)?
In the target selector of your gesture recognizer, use - (CGPoint)velocityInView:(UIView *)view;
:
- (void)panRecognized:(UIPanGestureRecognizer *)rec
{
CGPoint vel = [rec velocityInView:self.view];
if (vel.x > 0)
{
// user dragged towards the right
counter++;
}
else
{
// user dragged towards the left
counter--;
}
}
P.s.: I didn't know about this method until approx. 3 minutes before. One of Google's first hits was the official Apple documentation.