ios lable中电话号码点击拨打电话

1.核心代码，找到电话号码的位置 

#pragma mark-<获取电话号码的坐标>
+ (CGRect)boundingRectForCharacterRange:(NSRange)range andLable:(UILabel *)lable lableSize:(CGSize)lableSize{
//    NSMutableAttributedString *attributeString = [[NSMutableAttributedString alloc] initWithString:contentStr];
//    NSMutableParagraphStyle *paraStyle = [[NSMutableParagraphStyle alloc] init];
//    paraStyle.lineSpacing = 6;
//    NSDictionary *attrs =@{NSFontAttributeName : [UIFont systemFontOfSize:12.0], NSParagraphStyleAttributeName : paraStyle};
//    [attributeString setAttributes:attrs range:NSMakeRange(0, contentStr.length)];
    
    NSTextStorage *textStorage = [[NSTextStorage alloc] initWithAttributedString:lable.attributedText];
    NSLayoutManager *layoutManager = [[NSLayoutManager alloc] init];
    [textStorage addLayoutManager:layoutManager];
    NSTextContainer *textContainer = [[NSTextContainer alloc] initWithSize:lableSize];
    textContainer.lineFragmentPadding = 0;
    [layoutManager addTextContainer:textContainer];
    
    NSRange glyphRange;
    
    [layoutManager characterRangeForGlyphRange:range actualGlyphRange:&glyphRange];
    
    CGRect rect = [layoutManager boundingRectForGlyphRange:glyphRange inTextContainer:textContainer];
//    CGFloat yOfset =  rect.origin.y;
//    rect.origin.y = yOfset + 3;
    
    return rect;
}

2.用法示例

{   // 添加拨打电话

    self.tipsLabel.userInteractionEnabled = YES;

    [self.view layoutIfNeeded];

    NSRange range = [_tipsLabel.text rangeOfString:@"4006668800"];

    UIControl *phoneControl = [[UIControl alloc] initWithFrame:[ZYTools boundingRectForCharacterRange:range andLable:self.tipsLabel lableSize:self.tipsLabel.frame.size]];

    phoneControl.tag = 1234;

    [phoneControl addTarget:self action:@selector(phoneLink) forControlEvents:UIControlEventTouchUpInside];

    [_tipsLabel addSubview:phoneControl];

}

#pragma mark-点击拨打电话

- (void)phoneLink{

    NSString *str = [NSString stringWithFormat:@"tel:%@",CustomerServiceTelephone];

    dispatch_async(dispatch_get_main_queue(), ^(){

        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];

    });

    

}

3.注意label的attributedText一定要设置字体大小

- (UILabel *)tipsLabel

{

    if (!_tipsLabel) {

        _tipsLabel = [[UILabel alloc] init];

        _tipsLabel.text = @"1、请输入正确的运营商服务密码，如果忘记请点击\"忘记密码\"\n2、运营商认证需要2-3分钟，请耐心等待\n3、如果重置密码失败，请拨打客服热线：4006668800";

        _tipsLabel.font = UIFONT_12;

        _tipsLabel.numberOfLines = 0;

        _tipsLabel.textColor = colorWith(@"#939ca5");

        _tipsLabel.textAlignment = NSTextAlignmentLeft;

        

        NSMutableParagraphStyle *paraStyle = [[NSMutableParagraphStyle alloc] init];

        paraStyle.lineSpacing = 6;

        NSDictionary *dict = @{NSParagraphStyleAttributeName : paraStyle};

        NSMutableAttributedString *attr = [[NSMutableAttributedString alloc] initWithString:_tipsLabel.text attributes:dict];

        NSRange range = [_tipsLabel.text rangeOfString:@"4006668800"];

        [attr addAttribute:NSForegroundColorAttributeName value:[UIColor colorWithHexString:@"#FB6F5C"] range:range];

        [attr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:12.0] range:NSMakeRange(0, _tipsLabel.text.length)];

        _tipsLabel.attributedText = attr;

    }

    return _tipsLabel;

}