我试图弄清楚这个验证我的 Android 电话号码的工作原理。
我已添加代码并希望验证 46123456789,但最后一个数字 (9) 并未添加到电话号码中。
我用这个:
/**
* @param phone
* @return The number which satisfies the above criteria, is a valid mobile Number.
* The first digit should contain number between 0 to 9.
* The rest 9 digit can contain any number between 0 to 9.
* The mobile number can have 11 digits also by including 0 at the starting.
* The mobile number can be of 12 digits also by including 46 at the starting
*/
public static boolean isValidPhoneNumber(String phone) {
phone = trimPhoneNumber(phone);
// The given argument to compile() method
// is regular expression. With the help of
// regular expression we can validate mobile
// number.
// 1) Begins with 0 or 46
// 2) Then contains 6 or 7 or 8 or 9.
// 3) Then contains 9 digits
Pattern p = Pattern.compile("(0/46)?[0-9][0-10]{9}");
// Pattern class contains matcher() method
// to find matching between given number
// and regular expression
Matcher m = p.matcher(phone);
return (m.find() && m.group().equals(phone));
}
public static String trimPhoneNumber(String phone) {
if (TextUtils.isEmpty(phone)) {
return phone;
} else {
try {
phone = phone.replace("+46", "");
phone = phone.replaceAll("[^0-9]", "");//replace all except 0-9
return phone;
} catch (Exception e) {
e.printStackTrace();
return phone;
}
}
}
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我错过了什么吗
使用这个模式:
^\s*(?:(?:\+?46)|0)(?:\d){9,10}\s*$
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^在开始和$结束时确保模式与整个输入匹配
\s*修剪任何空格或制表符
\d捕获任何数字
(?:\d){9,10}表示该模式(?:\d)应重复 9 至 10 次。
`` 模式以 (+46或46) 开头或0后跟 9 或 10 位数。
如果它可以包含-数字或数字之间有空格,请使用:
^\s*(?:(?:\+?46)|0)(?:[- ]*\d){9,10}\s*$
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你可以在这里测试正则表达式
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