使用pop旋转和翻转三角形

Question

我尝试使用pop框架（https://github.com/facebook/pop）向上/向下或向左/向右翻转三角形时遇到问题。

如何将我拥有的代码转换为pop？

java.lang.SecurityException: Access Control Enforcer: access denied: could not open channel

Answer 1

在您使用fromValue时，它将不会被初始化。试试这段代码......

[_baseLayer pop_removeAnimationForKey:@"kAnimationRotate"];
//rotate with pop, at some point this starts to rotate more than 120
POPSpringAnimation *rotateAnimation = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerRotation];
[_baseLayer pop_addAnimation:rotateAnimation forKey:@"kAnimationRotate"];
rotateAnimation.toValue = @([rotateAnimation.fromValue floatValue] + 120/360.0f*(2*M_PI));
rotateAnimation.springBounciness = 10.0f;
rotateAnimation.springSpeed = 25.0f;