核心動畫：光柵沒有動畫

Question

我試圖通過將光柵應用到CALayer來執行快速和骯髒的「模糊」。 CA文檔說應該使用動畫，但我沒有獲得任何動畫。代碼如下：

CABasicAnimation* blurAnimation; 
blurAnimation = [CABasicAnimation animationWithKeyPath:@"rasterize"]; 
blurAnimation.removedOnCompletion = NO; 
blurAnimation.autoreverses = YES; 
blurAnimation.duration = 3.0f; 
blurAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];  
blurAnimation.repeatCount = 20; // HUGE_VALF; 
blurAnimation.fromValue = [NSNumber numberWithFloat:0.3f]; 
blurAnimation.toValue = [NSNumber numberWithFloat:1.0f]; 
[theCheck setShouldRasterize:YES]; 

// Add animation to the layer and make it so 
[theCheck addAnimation:blurAnimation forKey:nil]; 

Answer 1

您是否嘗試將「光柵化」更改爲「rasterizationScale」？