iOS图片旋转

UIImageView *im = [[UIImageView alloc] initWithFrame:CGRectMake(30, 50, 200, 200)];

im.image = [UIImage imageNamed:@"1.jpg"];

CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform"];



animation.delegate = self;



animation.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeRotation(M_PI , 0, 0, 1.0)];



animation.duration = 0.2;



animation.cumulative = YES;



animation.repeatCount = INT_MAX;



[im.layer addAnimation:animation forKey:@"animation"];



[self.view addSubview:im];