Question

我想用CAKeyframeAnimation旋转UIImageView。问题是阴影随着物体旋转，产生非真实效果...... The shadow must remain under the image, not rotating around it

这是我的代码。很简单：

=
SUMX ( 
    VALUES ( YourTable[Item] ),
    MAXX (
        VALUES ( YourTable[Round] ),
        CALCULATE( SUM ( YourTable[Value] ) )
    )
)

任何解决方案？

Answer 1

如果阴影随图像一起旋转。您可以通过在UIView下方UIImageView添加UIImageView相同维度的UIView来解决此问题。如果您为UIImageView而不是let imagen:UIImageView = UIImageView(frame: CGRect(x: 100, y: 100, width: 100, height: 100)) imagen.center = CGPoint(x: 100, y: 100) imagen.backgroundColor = UIColor.red let belowView: UIView = UIView(frame: imagen.frame) belowView.backgroundColor = UIColor.white belowView.layer.shadowOpacity = 0.75 belowView.layer.shadowOffset = CGSize(width: 0, height: 15) self.view.addSubview(belowView) self.view.addSubview(imagen) //Animación del ángulo let animacionAngulo = CAKeyframeAnimation(keyPath: "transform.rotation.z") var valoresAngulo = [NSNumber]() let degrees:Float = 360 let radians = degrees * Float.pi / Float(180.0) valoresAngulo.append(NSNumber(value: 0)) valoresAngulo.append(NSNumber(value: radians)) animacionAngulo.values = valoresAngulo //Permite añadir varias animaciones y gestionarlas a la vez animacionAngulo.repeatCount = Float.infinity animacionAngulo.duration = 2.0 imagen.layer.add(animacionAngulo, forKey: nil)添加阴影，则可以在这种情况下获得所需的效果。

awk

CAKeyframeAnimation旋转不会绘制真实阴影

1 个答案: