iOS 识别文字中的手机号码高亮显示点击可拨打电话

前一阵子项目遇到一个需求：标签展现的文字中需要识别手机号码，高亮显示添加下划线并可以点击拨打电话。

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直接上代码,写了一个方法，传入需要进行判断的标签及其标签的文字内容

-(void)distinguishPhoneNumLabel:(UILabel *)label labelStr:(NSString *)labelStr{

//获取字符串中的电话号码
NSString *regulaStr = @"\\d{3,4}[- ]?\\d{7,8}";
NSRange stringRange = NSMakeRange(0, labelStr.length);
//正则匹配
NSError *error;

 NSMutableAttributedString *str = [[NSMutableAttributedString alloc]initWithString:labelStr];

NSRegularExpression *regexps = [NSRegularExpression regularExpressionWithPattern:regulaStr options:0 error:&error];
if (!error && regexps != nil) {
    [regexps enumerateMatchesInString:labelStr options:0 range:stringRange usingBlock:^(NSTextCheckingResult * _Nullable result, NSMatchingFlags flags, BOOL * _Nonnull stop) {
        
        NSRange phoneRange = result.range;
        //定义一个NSAttributedstring接受电话号码字符串
        phoneNumber = [str attributedSubstringFromRange:phoneRange];
        //添加下划线
        NSDictionary *attribtDic = @{NSUnderlineStyleAttributeName: [NSNumber numberWithInteger:NSUnderlineStyleSingle]};
        [str addAttributes:attribtDic range:phoneRange];
        //设置文本中的电话号码显示为黄色
        [str addAttribute:NSForegroundColorAttributeName value:[LFWImage colorWithHexString:@"FF8200"] range:phoneRange];
        
        label.attributedText = str;
        label.userInteractionEnabled = YES;
        
        //添加手势，可以点击号码拨打电话
        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapGesture:)];
    
        [label addGestureRecognizer:tap];
    
    }];
}

}

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 //实现拨打电话的方法
-(void)tapGesture:(UITapGestureRecognizer *)sender{

 NSString *deviceType = [UIDevice currentDevice].model;
if([deviceType  isEqualToString:@"iPod touch"]||[deviceType  isEqualToString:@"iPad"]||[deviceType  isEqualToString:@"iPhone Simulator"]){
    
    UIAlertView *alert=[[UIAlertView alloc] initWithTitle:@"提示" message:@"您的设备不能打电话" delegate:nil cancelButtonTitle:@"好的,知道了" otherButtonTitles:nil,nil];
    
    [alert show];
    
}else{
  
    //NSAttributedstring转换为NSString
    NSString *stringNum = [phoneNumber string];
    NSMutableString * str=[[NSMutableString alloc] initWithFormat:@"tel:%@",stringNum];
    NSString *newStr = [str stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
    UIWebView * callWebview = [[UIWebView alloc] init];
    [callWebview loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:newStr]]];
    [self.view addSubview:callWebview];

}

}