[英]CABasicAnimation of object around itself (360 degrees)
这是我的动画代码:
CABasicAnimation *fullRotation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
fullRotation.toValue = [NSNumber numberWithFloat:((360*M_PI)/180)];
fullRotation.duration = 4;
fullRotation.repeatCount= 1000;
[[stick layer] addAnimation:fullRotation forKey:@"60"];
fullRotation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
我试图绕自身旋转“摇杆”,但似乎绕着另一个点旋转,该点默认是原点。 我该怎么做才能使其绕自身完整360度旋转? 提前致谢。
如果要更改操纵杆的锚点,请使用:
stick.layer.anchorPoint = CGPointMake(1.0,1.0);
我使用的旋转代码:
CABasicAnimation *rotateAnim = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
rotateAnim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
rotateAnim.fromValue = [NSNumber numberWithFloat:0];
rotateAnim.toValue = [NSNumber numberWithFloat:(360 * M_PI / 180.0f)];
rotateAnim.repeatCount = HUGE_VALF;
rotateAnim.duration = 2.5;
rotateAnim.removedOnCompletion = NO;
[view.layer addAnimation:rotateAnim forKey:@"rotationAnimation"];
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