36 lines
1.1 KiB
Swift
36 lines
1.1 KiB
Swift
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// UIImage.swift
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// Mastodon
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//
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// Created by sxiaojian on 2021/3/8.
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//
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import UIKit
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extension UIImage {
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class func imageWithColor(color: UIColor, size: CGSize=CGSize(width: 1, height: 1)) -> UIImage? {
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UIGraphicsBeginImageContextWithOptions(size, false, 0)
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color.setFill()
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UIRectFill(CGRect(origin: CGPoint.zero, size: size))
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let image = UIGraphicsGetImageFromCurrentImageContext()
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UIGraphicsEndImageContext()
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return image
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}
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public func withRoundedCorners(radius: CGFloat? = nil) -> UIImage? {
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let maxRadius = min(size.width, size.height) / 2
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let cornerRadius: CGFloat
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if let radius = radius, radius > 0 && radius <= maxRadius {
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cornerRadius = radius
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} else {
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cornerRadius = maxRadius
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}
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UIGraphicsBeginImageContextWithOptions(size, false, scale)
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let rect = CGRect(origin: .zero, size: size)
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UIBezierPath(roundedRect: rect, cornerRadius: cornerRadius).addClip()
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draw(in: rect)
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let image = UIGraphicsGetImageFromCurrentImageContext()
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UIGraphicsEndImageContext()
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return image
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}
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}
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