#import <QuartzCore/QuartzCore.h>
[UIViewbeginAnimations:@"animationID"context:nil];
[UIViewsetAnimationDuration:0.5f];
[UIViewsetAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIViewsetAnimationRepeatAutoreverses:NO]
indicateImageView.layer.anchorPoint=CGPointMake(0.5,0.5);
indicateImageView.transform =CGAffineTransformMakeRotation([selfradians:0]);
[UIViewcommitAnimations];
-(double)radians:(double)degrees
{
return degrees *M_PI/180;
}