完成后停止删除CABasicAnimation

Question

嘿，我有这个代码片段（持续时间为.5，金额为1.5）

CABasicAnimation *grow = [CABasicAnimation animationWithKeyPath:@"transform"];
grow.duration = duration;
grow.repeatCount = 0;
grow.removedOnCompletion = NO;
grow.autoreverses = NO;
grow.fromValue = [NSValue valueWithCATransform3D:CATransform3DScale(self.layer.transform, 1.0, 1.0, 1.0)];
grow.toValue = [NSValue valueWithCATransform3D:CATransform3DScale(self.layer.transform, amount, amount, amount)];
grow.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
[self.layer addAnimation:grow forKey:@"grow"];

然而，当播放时，UIView正常增长，但随后快速恢复到其起始值。我认为“removedOnCompletion”应该是为了阻止这个？

Answer 1

看起来我还需要指定：

  grow.fillMode = kCAFillModeForwards;

去图。现在工作：）