flutter - 如何获得下图中给出的边界半径。＃扑

Question

在此处输入图像描述

我想获得下图中指示的倒置边界半径。

标签： flutteruser-interfaceborder-radius

Answer 1

尝试参考此代码，参考：

class Clipper extends CustomClipper<Path> {
  @override
  Path getClip(Size size) {
    var _height = size.height;
    var _width = size.width;

    var controlPoint1 = Offset(40, _height / 3.1);
    var controlPoint2 = Offset(_width - 40, 0);
    var endPoint = Offset(_width, _height / 2);

    var path = Path()
      ..cubicTo(controlPoint1.dx, controlPoint1.dy, controlPoint2.dx,
          controlPoint2.dy, endPoint.dx, endPoint.dy)
      ..lineTo(_width, _height)
      ..lineTo(0, _height)
      ..close();

    return path;
  }

  @override
  bool shouldReclip(CustomClipper<Path> oldClipper) => true;
}