getUrlCircle method
图片内切圆
originalUrl
图片地址
radius
圆半径
Implementation
String getUrlCircle(String originalUrl, int? radius) {
var arguments = OssImageArguments().builder();
arguments.resizeW(2 * (radius ?? 0));
arguments.circle(radius);
arguments.format(ImageFormat.webp);
return getUrl(originalUrl, arguments.toBuffer());
}