方法1
- (void)startAnimation
{
CGAffineTransform endAngle = CGAffineTransformMakeRotation(imageviewAngle * (M_PI / 180.0f));
[UIView animateWithDuration:0.01 delay:0 options:UIViewAnimationOptionCurveLinear animations:^{
imageView.transform = endAngle;
} completion:^(BOOL finished) {
angle += 10;
[self startAnimation];
}];
}
方法2
CABasicAnimation* rotationAnimation;
rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
rotationAnimation.toValue = [NSNumber numberWithFloat: M_PI * 2.0 ];
[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
rotationAnimation.duration = 5;
rotationAnimation.repeatCount = 1000000; //你可以设置到最大的整数值
rotationAnimation.cumulative = NO;
rotationAnimation.removedOnCompletion = NO;
rotationAnimation.fillMode = kCAFillModeForwards;
[imgV_imageview.layer addAnimation:rotationAnimation forKey:@"Rotation"];
