ios - 沿着贝塞尔曲线路径拖动 UIView

Question

我需要沿着贝塞尔曲线路径将 UIView 从一个点拖到另一个点，最好的方法是什么？

Answer 1

这是将 uiview 从一点拖到另一点的最简单方法。

UIBezierPath *path  = [UIBezierPath bezierPath];
[path moveToPoint:startingPoint];
[path addLineToPoint:endPoint]; //you can use addCurveToPoint: , addArcToPoint:, etc

CAKeyframeAnimation *pathAnimation = [CAKeyframeAnimation animationWithKeyPath:@"position"];
pathAnimation.duration = 10.0;
pathAnimation.path = path;
pathAnimation.removeOnCompletion = NO ;
[myView.layer addAnimation:pathAnimation forKey:@"pathAnimation"];