上下标显示——2020-05-18

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *cameraTypeCellID = @"typeCell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cameraTypeCellID];
    
    if (!cell) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cameraTypeCellID];
        
        [cell setSelectionStyle:UITableViewCellSelectionStyleNone];
        [cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
        [cell setBackgroundColor:[UIColor whiteColor]];
        [cell.textLabel setFont:[UIFont systemFontOfSize:([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) ? 22.f : 16.f]];
        [cell.textLabel setNumberOfLines:0];
    }

    NSString *cellImageName = nil;
    NSString *cellText = nil;
    
    BOOL     enable = YES;
    if (indexPath.section == 0) { //卡片机
        enable = YES;
        cellImageName = @"MINI_CUBE";
        cellText = DPLocalizedString(@"addcamera_cameratype1", @"AddCamera", nil);
    }
    else if (indexPath.section == 1) { // 摇头机
        enable = YES;
        cellImageName = @"PAN_TILT";
        cellText = DPLocalizedString(@"addcamera_cameratype2", @"AddCamera", nil);
    }
    else if (indexPath.section == 2) { // mini枪机
        enable = YES;
        cellImageName = @"MINI_BULLET";
        cellText = DPLocalizedString(@"addcamera_cameratype3", @"AddCamera", nil);
    }
    else {
  
    }
    
    NSRange range = NSMakeRange(0, 0);
    if ([cellText containsString:@"+"]) {
        range = [cellText rangeOfString:@"+"];
        NSArray *startRanges = @[@(0), @(range.location)];
        NSArray *endRanges = @[@(range.location), @(1)];
        NSString *fontSizeString = ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) ? @"22" : @"16";
        NSArray *fonts = @[fontSizeString, fontSizeString];
        NSArray *colors = @[[UIColor blackColor], [UIColor blackColor]];
        NSArray *baselineOffsets = @[@0, @10, @0, @0];
        
        NSMutableAttributedString * attributedString = [self attributedStringWithString:cellText
                                                                            startRanges:startRanges
                                                                              endRanges:endRanges
                                                                                  fonts:fonts
                                                                                 colors:colors
                                                                        baselineOffsets:baselineOffsets];
        cell.textLabel.attributedText = attributedString;
        
    }
    else if ([cellText containsString:@"x"]) {
        range = [cellText rangeOfString:@"x"];
        NSArray *startRanges = @[@(0), @(range.location)];
        NSArray *endRanges = @[@(range.location), @(1)];
        NSString *fontSizeString = ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) ? @"22" : @"16";
        NSArray *fonts = @[fontSizeString, fontSizeString];
        NSArray *colors = @[[UIColor blackColor], [UIColor blackColor]];
        NSArray *baselineOffsets = @[@0, @10, @0, @0];
        
        NSMutableAttributedString * attributedString = [self attributedStringWithString:cellText
                                                                            startRanges:startRanges
                                                                              endRanges:endRanges
                                                                                  fonts:fonts
                                                                                 colors:colors
                                                                        baselineOffsets:baselineOffsets];
        cell.textLabel.attributedText = attributedString;
    }
    else {
        [cell.textLabel setText:cellText];
    }
    
    [cell setUserInteractionEnabled:enable];
    [cell.textLabel setTextColor:RGBACOLOR(87.f, 97.f, 107.f, 1.f)];
    [cell.imageView setImage:[UIImage imageNamed:cellImageName]];
    
    return cell;
}

#pragma mark - 上下标

- (NSMutableAttributedString *)attributedStringWithString:(NSString *)string
                                              startRanges:(NSArray *)startRanges
                                                endRanges:(NSArray *)endRanges
                                                    fonts:(NSArray *)fonts
                                                   colors:(NSArray *)colors
                                           baselineOffsets:(NSArray *)baselineOffsets {
    NSMutableAttributedString * attriString = [[NSMutableAttributedString alloc] initWithString:string];
    
    for ( int i = 0; i < fonts.count; i++ ) {
        UIFont * font = [UIFont systemFontOfSize:10];
        
        if ( [fonts[i] isKindOfClass:[NSString class]] ) {
            NSString * fontStr = fonts[i];
            font = [UIFont systemFontOfSize:fontStr.floatValue];
        }
        else {
            font = fonts[i];
        }
        
        UIColor *color = [UIColor blackColor];
        
        if ( [colors[i] isKindOfClass:[NSString class]] ) {
            NSString * colorStr = colors[i];
            color = [self colorWithHexString:colorStr];
        }
        else {
            color = colors[i];
        }
        
        NSNumber *startIndex = startRanges[i];
        NSNumber *endIndex = endRanges[i];
        NSRange range = NSMakeRange(startIndex.floatValue, endIndex.floatValue);
        NSNumber *baselineOffset = baselineOffsets[i];
        
        [attriString addAttributes:@{
                                     NSFontAttributeName:font,
                                     NSForegroundColorAttributeName:color,
                                     NSBaselineOffsetAttributeName:baselineOffset
                                     }
                             range:range];
    }
    
    return attriString;
}


- (UIColor *)colorWithHexString:(NSString *)hexString {
    unsigned int red,green,blue;
    NSRange range;
    range.length = 2;
    range.location = 0;
    [[NSScanner scannerWithString:[hexString substringWithRange:range]]scanHexInt:&red];
    range.location = 2;
    [[NSScanner scannerWithString:[hexString substringWithRange:range]]scanHexInt:&green];
    range.location = 4;
    [[NSScanner scannerWithString:[hexString substringWithRange:range]]scanHexInt:&blue];
    return [UIColor colorWithRed:(float)(red/255.0f)green:(float)(green / 255.0f) blue:(float)(blue / 255.0f)alpha:1.0f];
}