iOS development picture and color processing tool

1. Create a picture based on color

/** 根据颜色生成一张图片  @param color 颜色进制  UIColor类型 @return 一张UIImage图片 */+ (UIImage *)createImageWithColor:(UIColor *)color {    CGRect rect = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f); //宽高 1.0只要有值就够了    UIGraphicsBeginImageContext(rect.size); //在这个范围内开启一段上下文    CGContextRef context = UIGraphicsGetCurrentContext();        CGContextSetFillColorWithColor(context, [color CGColor]);//在这段上下文中获取到颜色UIColor    CGContextFillRect(context, rect);//用这个颜色填充这个上下文        UIImage *image = UIGraphicsGetImageFromCurrentImageContext();//从这段上下文中获取Image属性,,,结束    UIGraphicsEndImageContext();        return image;}

iOS development picture and color processing tool