How to get perfect X , Y position of rotating UIView in ios

Question

I am using CABasicanimation for rotate an UIView. I am using this code,

    CABasicAnimation *rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
    NSNumber *currentAngle = [CircleView.layer.presentationLayer valueForKeyPath:@"transform.rotation"];
    rotationAnimation.fromValue = currentAngle;
    rotationAnimation.toValue = @(50*M_PI);
    rotationAnimation.duration = 50.0f;             // this might be too fast
    rotationAnimation.repeatCount = HUGE_VALF;     // HUGE_VALF is defined in math.h so import it
    [CircleView.layer addAnimation:rotationAnimation forKey:@"rotationAnimationleft"];

in this i want perfect X,Y position while "UIView" is rotating. If anyone know please help me.

Thank you in advance.

Answer 1

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