如何实现图片的3D旋转，而且是不停旋转？

Question

我的代码是这样的：//ViewController.m//核心动画#import"ViewController.h"@interfaceViewController()@property(weak,nonatomic)IBOutletUIImageView*imageView;@end@implementationViewController-(void)viewDidLoad{[superviewDidLoad];}-(void)touchesBegan:(NSSet*)toucheswithEvent:(UIEvent*)event{[UIViewanimateWithDuration:3animations:^{self.imageView.layer.transform=CATransform3DMakeRotation(M_PI,0,1,1);}];}-(void)didReceiveMemoryWarning{[superdidReceiveMemoryWarning];}@end但是这样做旋转了一次就不在旋转了。请问如何实现不停的旋转呢？（按照Y轴）

Answer 1

[UIViewanimateWithDuration:3
delay:0
options:UIViewAnimationOptionRepeat
animations:^{
}
completion:^(BOOLfinished){
}];
                            

Answer 2

LZ的代码,并不是按照Y找转,Y,Z同时都会动,按Y轴循环转动,有以下两种方法可供参考,推荐第一种方法,过渡更平滑,自然.方法一:
CABasicAnimation*rotationAnimation;
rotationAnimation=[CABasicAnimationanimationWithKeyPath:@"transform.rotation.y"];
rotationAnimation.toValue=[NSNumbernumberWithFloat:M_PI*2.0];
rotationAnimation.duration=3;
rotationAnimation.cumulative=YES;
rotationAnimation.repeatCount=MAXFLOAT;
[self.imageView.layeraddAnimation:rotationAnimationforKey:@"rotationAnimation"];
方法二:
[UIViewanimateWithDuration:3
delay:0
options:UIViewAnimationOptionRepeat
animations:^{
self.imageView.layer.transform=CATransform3DMakeRotation(M_PI,0,1,0);
}
completion:^(BOOLfinished){
self.imageView.layer.transform=CATransform3DMakeRotation(M_PI,0,1,0);
}];