
原贴:http://www.cocoachina.com/bbs/read.php?tid=181448
调用:
userNameImage.image=[selfimageWithColor:ColorHex(ColorMain) :userNameImage.image];
代码:
- (UIImage *)imageWithColor:(UIColor *)color :(UIImage *)sourceImage{
UIGraphicsBeginImageContextWithOptions(sourceImage.size, NO, sourceImage.scale);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextTranslateCTM(context, 0, sourceImage.size.height);
CGContextScaleCTM(context, 1.0, -1.0);
CGContextSetBlendMode(context, kCGBlendModeNormal);
CGRect rect = CGRectMake(0, 0, sourceImage.size.width, sourceImage.size.height);
CGContextClipToMask(context, rect, sourceImage.CGImage);
[color setFill];
CGContextFillRect(context, rect);
UIImage*newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}