iOS-UIImage与UIColor互转

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UIImage与UIColor互转。

UIColor转UIImage:

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+(UIImage*)createImageWithColor:(UIColor *)color andSize:(CGSize)size
{
    UIImage *img = nil;
    
    CGRect rect = CGRectMake(0, 0, size.width, size.height);
    UIGraphicsBeginImageContext(rect.size);
    CGContextRef context = UIGraphicsGetCurrentContext();
    CGContextSetFillColorWithColor(context, color.CGColor);
    CGContextFillRect(context, rect);
    
    img = UIGraphicsGetImageFromCurrentImageContext();
    
    UIGraphicsEndImageContext();
    
    return img;
}

UIImage转UIColor:

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[UIColor colorWithPatternImage:image];