使用UIGraphicsImageRenderer创建圆形图像

import UIKit

func createCircularImage(size: CGSize) -> UIImage {
    // ...
}

func createCircularImage(size: CGSize) -> UIImage {
    let renderer = UIGraphicsImageRenderer(size: size)
    let image = renderer.image { context in
        // ...
    }
    return image
}

func createCircularImage(size: CGSize) -> UIImage {
    let renderer = UIGraphicsImageRenderer(size: size)
    let image = renderer.image { context in
        let rect = CGRect(origin: .zero, size: size)
        let path = UIBezierPath(ovalIn: rect)
        // ...
    }
    return image
}

func createCircularImage(size: CGSize) -> UIImage {
    let renderer = UIGraphicsImageRenderer(size: size)
    let image = renderer.image { context in
        let rect = CGRect(origin: .zero, size: size)
        let path = UIBezierPath(ovalIn: rect)
        UIColor.red.setFill() // 设置填充颜色
        path.fill() // 填充路径
    }
    return image
}

func createCircularImage(size: CGSize) -> UIImage {
    let renderer = UIGraphicsImageRenderer(size: size)
    let image = renderer.image { context in
        let rect = CGRect(origin: .zero, size: size)
        let path = UIBezierPath(ovalIn: rect)
        UIColor.red.setFill() // 设置填充颜色
        path.fill() // 填充路径
    }
    return image
}

let circularImage = createCircularImage(size: CGSize(width: 100, height: 100))
imageView.image = circularImage