如何将旋转的 CALayer 永久保留在其最终位置？
我试图将 CALayer 旋转到特定角度，但是，一旦动画完成，图层就会跳回其原始位置。如何正确旋转图层以使其保持在最终目的地？
这是我正在使用的代码
CABasicAnimation *rotationAnimation =[CABasicAnimation animationWithKeyPath:@"transform.rotation.z"]; //Rotate about z-axis
[rotationAnimation setFromValue:[NSNumber numberWithFloat:fromDegree]];
[rotationAnimation setToValue:[NSNumber numberWithFloat:toDegree]];
[rotationAnimation setDuration:0.2];
[rotationAnimation setRemovedOnCompletion:YES];
[rotationAnimation setFillMode:kCAFillModeForwards];
有什么建议吗？谢谢。
I am trying to rotate a CALayer to a specific angle however, once the animation is done, the layer jumps back to its original position. How would I rotate the layer properly so that it stays at its final destination?
Here is the code that I am using
CABasicAnimation *rotationAnimation =[CABasicAnimation animationWithKeyPath:@"transform.rotation.z"]; //Rotate about z-axis
[rotationAnimation setFromValue:[NSNumber numberWithFloat:fromDegree]];
[rotationAnimation setToValue:[NSNumber numberWithFloat:toDegree]];
[rotationAnimation setDuration:0.2];
[rotationAnimation setRemovedOnCompletion:YES];
[rotationAnimation setFillMode:kCAFillModeForwards];
Any suggestions? Thank you.
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评论（2）
好吧，我通过将removeOnCompletion 设置为NO 来修复它。
Ok I fixed it by setting removeOnCompletion to NO.
您正在添加动画，但没有修改实际的基础属性。创建动画后，只需设置图层的
transform属性即可包含相同的最终结果。You're adding an animation, but you aren't modifying the actual underlying property. After you create the animation, just set the layer's
transformproperty to contain the same final result.