Add UIPanGestureRecognizer to View

Adding PanGestureRecognizer to your view its very easy.

Here i have added PanGestureRecognizer to ImageView. so i can move my imageview in my view.

Add following code to any method to add PanGestureRecognizer to your view. i added this to ViewWillAppear.

-(void)viewWillAppear:(BOOL)animated

{

         UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)];

          [panRecognizer setMinimumNumberOfTouches:1];

          [panRecognizer setMaximumNumberOfTouches:1];

          [ViewMain addGestureRecognizer:panRecognizer];

          [panRecognizer release];

}

- (Void)handlePan:(UIPanGestureRecognizer *)recognizer

    {

   

         CGPoint translation = [recognizer translationInView:self.view];

         recognizer.view.center = CGPointMake(recognizer.view.center.x + translation.x,

                                         recognizer.view.center.y + translation.y);

         [recognizer setTranslation:CGPointMake(0, 0) inView:self.view];

     

         if (recognizer.state == UIGestureRecognizerStateEnded) {

       

             CGPoint velocity = [recognizer velocityInView:self.view];

             CGFloat magnitude = sqrtf((velocity.x * velocity.x) + (velocity.y * velocity.y));

            CGFloat slideMult = magnitude / 200;

            NSLog(@"magnitude: %f, slideMult: %f", magnitude, slideMult);

       

            float slideFactor = 0.1 * slideMult; // Increase for more of a slide

            CGPoint finalPoint = CGPointMake(recognizer.view.center.x + (velocity.x * slideFactor),

                                         recognizer.view.center.y + (velocity.y * slideFactor));

        finalPoint.x = MIN(MAX(finalPoint.x, 0), self.view.bounds.size.width);

        finalPoint.y = MIN(MAX(finalPoint.y, 0), self.view.bounds.size.height);

       

        [UIView animateWithDuration:slideFactor*2 delay:0 options:UIViewAnimationOptionCurveEaseOut animations:^{

            recognizer.view.center = finalPoint;

        } completion:nil];

       

    }

   

    }

Thanks & Regards

Angel AppTech