使用CAAnimation制作图像动画

Question

是否可以使用CAAnimation实现图像序列的动画？我也不想用UIImageView...

我需要一些类似于UIImageView的东西，在那里我们可以设置imageView.animationImages和调用startAnimation...但是使用CAAnimation

Answer 1

CAKeyframeAnimation *animationSequence = [CAKeyframeAnimation animationWithKeyPath: @"contents"];
animationSequence.calculationMode = kCAAnimationLinear;
animationSequence.autoreverses = YES;
animationSequence.duration = kDefaultAnimationDuration;
animationSequence.repeatCount = HUGE_VALF;

NSMutableArray *animationSequenceArray = [[NSMutableArray alloc] init];
for (UIImage *image in self.animationImages) 
{
    [animationSequenceArray addObject:(id)image.CGImage];
}
animationSequence.values = animationSequenceArray;
[animationSequenceArray release];
[self.layer addAnimation:animationSequence forKey:@"contents"];