Touch move base rotating Wheel Image

Question

Hello Anybody,
I have an application and developing for iPhone OS 2.2 . I use UIImageView and I want rotating my image with touch move position .
I load image into the view that like image is 'Span Wheel'. When i Touch move on the image it is rotating on Touch move position with speed of touch.
When I touch move low speed it will rotating short then stop automatically speed of touch move. If it is possible for do that.....
Any another way for do that ... Any default method availabe in the Objective -C
Could any one help for me . I am very confuse this concept .. Please give me solution with example....... I am new iPhone developer programmer ........
I am trying below the way..
- (void)touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event
timerIsCountingDown = NO;
currentTimerValue = 0;
NSArray *myTouches = [[event touchesForView:self] allObjects];
UITouch *t = [myTouches objectAtIndex:0];
Begantime = t.timestamp;
CGPoint pointInView = [[touches anyObject] locationInView:self];
touchXStart = pointInView.x;
touchYStart = pointInView.y;
- (void)touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event
degree = [self angle:touchXStart y0:touchYStart x1:touchXEnd y1:touchYEnd];
timerIsCountingDown = YES;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
//[UIView setAnimationDuration:0.05];
[UIView setAnimationDelegate:self];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
// timer = [NSTimer scheduledTimerWithTimeInterval: 0.02 target: self selector:@selector(hadleTimer:) userInfo: nil repeats: YES];
angle += 10;
// if (angle > 6.283)
// angle = 0;
CGAffineTransform transform=CGAffineTransformMakeRotation(angle);
imageView.transform = transform;
imageView.alpha = 1.0;
[UIView commitAnimations];
- (void)touchesEnded:(NSSet*)touches withEvent:(UIEvent*)event
NSArray *myTouches = [[event touchesForView:self] allObjects];
UITouch *t = [myTouches objectAtIndex:0];
Endtime = t.timestamp;
CGPoint pointInView = [[touches anyObject] locationInView:self];
touchXEnd = pointInView.x;
touchYEnd = pointInView.y;
CGFloat time = Begantime - Endtime;
CGFloat speed = distance / time;
NalaN

Answer 1

There is a gravity behavior applied to the cell, change that to a positive numer.
Peter