ios根据颜色生成图片

/**

*  生成图片

*

*  @param color  图片颜色

*  @param height 图片高度

*

*  @return 生成的图片

*/- (UIImage*) GetImageWithColor:(UIColor*)color andHeight:(CGFloat)height{CGRectr=CGRectMake(0.0f,0.0f,1.0f, height);UIGraphicsBeginImageContext(r.size);CGContextRefcontext =UIGraphicsGetCurrentContext();CGContextSetFillColorWithColor(context, [colorCGColor]);CGContextFillRect(context, r);UIImage*img =UIGraphicsGetImageFromCurrentImageContext();UIGraphicsEndImageContext();returnimg;}