改变图片颜色

//改变图片颜色

- (UIImage *)imageWithColor:(UIColor *)color image:(NSString *)image

{

UIGraphicsBeginImageContextWithOptions(self.frame.size, NO,2);

CGContextRef context = UIGraphicsGetCurrentContext();

CGContextTranslateCTM(context, 0, self.frame.size.height);

CGContextScaleCTM(context, 1.0, -1.0);

CGContextSetBlendMode(context, kCGBlendModeNormal);

CGRect rect = CGRectMake(0, 0, self.frame.size.width, self.frame.size.height);

//转换 UIImage  的格式

UIImage *loadImage=[UIImage imageNamed:image];

CGImageRef cgimage=loadImage.CGImage;

CGContextClipToMask(context, rect,cgimage);

[color setFill];

CGContextFillRect(context, rect);

UIImage*newImage = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return newImage;

}