iOS 展示SVG(SVGKit的使用)

https://www.jianshu.com/p/6b82beae0379

 

近期公司的移动端项目的icon都在使用svg(矢量图).svg在放大或者缩小的情况下,图像的图形质量不会有所损失.所以与大家分享一下两种iOS展示svg的方法.

一:svg就是XML,可以使用UIWebView/WKWebView进行加载.

UIWebView

+ (UIImage *)svgImageNamed:(NSString *)name size:(CGSize)size tintColor:(UIColor *)tintColor {
    SVGKImage *svgImage = [SVGKImage imageNamed:name];
    svgImage.size = size;
    CGRect rect = CGRectMake(0, 0, svgImage.size.width, svgImage.size.height);
    CGImageAlphaInfo alphaInfo = CGImageGetAlphaInfo(svgImage.UIImage.CGImage);
    BOOL opaque = alphaInfo == kCGImageAlphaNoneSkipLast
    || alphaInfo == kCGImageAlphaNoneSkipFirst
    || alphaInfo == kCGImageAlphaNone;
    UIGraphicsBeginImageContextWithOptions(svgImage.size, opaque, svgImage.scale);
    CGContextRef context = UIGraphicsGetCurrentContext();
    CGContextTranslateCTM(context, 0, svgImage.size.height);
    CGContextScaleCTM(context, 1.0, -1.0);
    CGContextSetBlendMode(context, kCGBlendModeNormal);
    CGContextClipToMask(context, rect, svgImage.UIImage.CGImage);
    CGContextSetFillColorWithColor(context, tintColor.CGColor);
    CGContextFillRect(context, rect);
    UIImage *imageOut = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return imageOut;
}

作者：像风一样的孩子丶
链接：https://www.jianshu.com/p/6b82beae0379
来源：简书