彩票号码OC呈现

 +(NSArray*)splitCode:(NSString*)code backzoneIndex:(NSInteger*)outIndex
 {
     /*
      01
      0102|0304
      010203040506|01
      |01
      */
     NSInteger backzoneIndex = ;

     NSArray* zoneArr = [code componentsSeparatedByString:@"|"];
     if (nil == zoneArr || [zoneArr count] != )
         return nil;

     NSMutableArray* splitArr = [NSMutableArray array];
     NSString* prozoneStr = zoneArr[];
     for (int i = ; i < [prozoneStr length]; i+= )
     {
         NSString* str = [prozoneStr substringWithRange:NSMakeRange(i, )];
         [splitArr addObject:str];
     }
     backzoneIndex = [splitArr count];

     NSString* backzoneStr = zoneArr[];
     for (int i = ; i < [backzoneStr length]; i+= )
     {
         NSString* str = [backzoneStr substringWithRange:NSMakeRange(i, )];
         [splitArr addObject:str];
     }
     *outIndex = backzoneIndex;
     return splitArr;
 }

 +(NSString*)stdCode:(NSString*)code
 {
     if ([CommonHelper isEmpty:code])
         return @"";
     //将,分隔,两位分隔,空格分隔的code转换成无分隔的code
     NSRange r = [code rangeOfString:@","];
     if (r.location != NSNotFound)
     {
         NSString* newCode = [code stringByReplacingOccurrencesOfString:@"," withString:@""];
         return newCode;
     }
     r = [code rangeOfString:@" "];
     {
         NSString* newCode = [code stringByReplacingOccurrencesOfString:@" " withString:@","];
         return newCode;
     }
     return code;
 }
 +(UIView*)makeLotteryView:(NSString*)code font:(UIFont*)font height:(CGFloat)height sep:(CGFloat)sep borderColor:(UIColor*)boderColor prozoneColor:(UIColor*)prozoneColor backzoneColor:(UIColor*)backzoneColor
 {
     NSString* stdCode = [MyLotteryShoppingCartViewController stdCode:code];
     if ([CommonHelper isEmpty:stdCode])
         return nil;
     NSInteger backzoneIndex = ;
     NSArray* codeArr = [MyLotteryShoppingCartViewController splitCode:stdCode backzoneIndex:&backzoneIndex];
     if ([CommonHelper isEmptyArray:codeArr])
         return nil;
     NSInteger codeCount = [codeArr count];
     CGFloat viewWidth = codeCount*height + (codeCount -)*sep;
     UIView* contentView = [UIView new];
     CGRect rect = CGRectMake(, ,viewWidth,height);
     [contentView setFrame:rect];
     CGFloat codeX = ;
     CGFloat codeY = ;
     CGFloat codeSep = sep;
     CGFloat codeW = height;
     CGFloat codeH = height;
     for(int i = ; i< codeCount;i++)
     {
         NSString* codeStr = codeArr[i];
         rect = CGRectMake(codeX, codeY, codeW, codeH);
         UILabel* lblCode = [[UILabel alloc]initWithFrame:rect];
         [lblCode setBackgroundColor:[UIColor clearColor]];
         [lblCode setFont:font];
         [lblCode.layer setCornerRadius:height/];
         [lblCode.layer setMasksToBounds:YES];
         [lblCode.layer setBorderWidth:];
         lblCode.layer.borderColor = boderColor.CGColor;
         [lblCode setTextColor:(i >= backzoneIndex) ? backzoneColor :prozoneColor];
         [lblCode setText:codeStr];
         [lblCode setTextAlignment:NSTextAlignmentCenter];
         [contentView addSubview:lblCode];
         codeX += codeW+ codeSep;
     }
     return contentView;
 }

第一个版本,先用View顶过去,后面考虑drawRect,目前看对帧率是有影响的