UIImageView动画:显示了something在屏幕上移动。

注：这种类型的动画是“开始后不处理” -你不能获取任何有关物体在动画中的信息(如当前的位置) 。如果您需要此信息，您会手动使用定时器去调整动画的X和Y坐标

这个需要导入QuartzCore.framework

 

NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];

CABasicAnimation *theAnimation;

theAnimation=[CABasicAnimation animationWithKeyPath:@"transform.translation.x"];

//Creates and returns an CAPropertyAnimation instance for the specified key path.

//parameter:the key path of the property to be animated

theAnimation.duration=1;

theAnimation.repeatCount=2;

theAnimation.autoreverses=YES;

theAnimation.fromValue=[NSNumber numberWithFloat:0];

theAnimation.toValue=[NSNumber numberWithFloat:-60];

[view.layer addAnimation:theAnimation forKey:@"animateLayer"];

[pool drain];