iOS开发——图片360°旋转动画

转载

+ (UIImageView *)rotate360DegreeWithImageView:(UIImageView *)imageView{
    CABasicAnimation *animation = [ CABasicAnimation
                                   animationWithKeyPath:
@"transform" ];
    animation.fromValue = [NSValue valueWithCATransform3D:CATransform3DIdentity];
    
    //围绕Z轴旋转，垂直与屏幕
    animation.toValue = [ NSValue valueWithCATransform3D: 
                         
                         CATransform3DMakeRotation(M_PI,
0.0, 0.0, 1.0) ];
    animation.duration = 0.5;
    //旋转效果累计，先转180度，接着再旋转180度，从而实现360旋转
    animation.cumulative = YES;
    animation.repeatCount = 1000;
    
    //在图片边缘添加一个像素的透明区域，去图片锯齿
    CGRect imageRrect = CGRectMake(0, 0,imageView.frame.size.width, imageView.frame.size.height);
    UIGraphicsBeginImageContext(imageRrect.size); 
    [imageView.image drawInRect:CGRectMake(1,1,imageView.frame.size.width-2,imageView.frame.size.height-2)];
    imageView.image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    [imageView.layer addAnimation:animation forKey:nil];
    return imageView;
}

 animation.repeatCount = 1000;
这个你要想一直旋转，设置一个无穷大就得了

停止的话直接这样就停止了
[self.view.layer removeAllAnimates];