我正在尝试制作一个动画,一开始它是模糊的,然后逐渐变得清晰。我想这个动画还不错,但当动画完成时,它仍然有点模糊。我是错了吗?
CABasicAnimation* blurAnimation = [CABasicAnimation animation];
CIFilter *blurFilter = [CIFilter filterWithName:@"CIGaussianBlur"];
[blurFilter setDefaults];
[blurFilter setValue:[NSNumber numberWithFloat:0.0] forKey:@"inputRadius"];
[blurFilter setName:@"blur"];
[[self layer] setFilters:[NSArray arrayWithObject:blurFilter]];
blurAnimation.keyPath = @"filters.blur.inputRadius";
blurAnimation.fromValue = [NSNumber numberWithFloat:10.0f];
blurAnimation.toValue = [NSNumber numberWithFloat:1.0];
blurAnimation.duration = 1.2;
[self.layer addAnimation:blurAnimation forKey:@"blurAnimation"];