Phone number validation Android

Question

How do I check if a phone number is valid or not  It is up to length 13  including character   in front    How do I do that   I tried this   String regexStr      0-9      String number entered number getText   toString       if entered number getText   toString   length   lt 10    number length   gt 13    number matches regexStr   false          Toast makeText MyDialog this  Please enter     n    valid phone number  Toast LENGTH SHORT  show           am checked 0       And I also tried this   public boolean isValidPhoneNumber String number         for  char c   number toCharArray                    if   VALID CHARS contains c                          return false                            All characters were valid      return true      Both are not working   Input type    sign to be accepted and from 0-9 numbers and length b w 10-13 and should not accept other characters

User · Answer

you can also check validation of phone number as                  Validation of Phone Number             public final static boolean isValidPhoneNumber CharSequence target            if  target    null    target length    lt  6    target length    gt  13                return false            else               return android util Patterns PHONE matcher target  matches

User · Answer

You can use PhoneNumberUtils if your phone format is one of the described formats  If none of the utility function match your needs  use regular experssions

User · Answer

Given the rules you specified      upto length 13 and including character   infront     and also incorporating the min length of 10 in your code   You re going to want a regex that looks like this       0-9  10 13     With the min and max lengths encoded in the regex  you can drop those conditions from your if   block   Off topic  I d suggest that a range of 10 - 13 is too limiting for an international phone number field  you re almost certain to find valid numbers that are both longer and shorter than this  I d suggest a range of 8 - 20 to be safe    EDIT  OP states the above regex doesn t work due to the escape sequence  Not sure why  but an alternative would be        0-9  10 13      EDIT 2  OP now adds that the   sign should be optional  In this case  the regex needs a question mark after the    so the example above would now look like this         0-9  10 13

User · Answer

Here is how you can do it succinctly in Kotlin   fun String isPhoneNumber                 length in 4  10  amp  amp  all   it isDigit

User · Answer

val UserMobile   findViewById lt edittext gt  R id UserMobile  val msgUserMobile  String   UserMobile text toString   fun String isMobileValid    Boolean          11 digit number start with 011 or 010 or 015 or 012        then  0-9  8  any numbers from 0 to 9 with length 8 numbers     if Pattern matches   011 012 010 015  0-9  8    msgUserMobile             return true           return false    if msgUserMobile trim   length  11 amp  amp  msgUserMobile isMobileValid           pass  else         not valid

User · Answer

To validate phone numbers for a specific region in Android  use libPhoneNumber from Google  and the following code as an example   public boolean isPhoneNumberValid String phoneNumber  String countryCode          NOTE  This should probably be a member variable      PhoneNumberUtil phoneUtil   PhoneNumberUtil getInstance         try                PhoneNumber numberProto   phoneUtil parse phoneNumber  countryCode           return phoneUtil isValidNumber numberProto              catch  NumberParseException e                 System err println  NumberParseException was thrown      e toString                return false

User · Answer

0-9  1 3      -  0-9  1 3   -  0-9  3 5   -  0-9  4    -  0-9  3      Check your cases here  https   regex101 com r DuYT9f 1

User · Answer

We can use pattern to validate it       android util Patterns PHONE   public class GeneralUtils        private static boolean isValidPhoneNumber String phoneNumber            return  TextUtils isEmpty phoneNumber   amp  amp  android util Patterns PHONE matcher phoneNumber  matches

User · Answer

I got best solution for international phone number validation and selecting country code  below library is justified me Best library for all custom UI and functionality CountryCodePickerProject

User · Answer

You shouldn t be using Regular Expressions when validating phone numbers  Check out this JSON API - numverify com - it s free for a nunver if calls a month and capable of checking any phone number  Plus  each request comes with location  line type and carrier information

User · Answer

201 0 1 2 5  0-9  8    this regex matches Egyptian mobile numbers

User · Answer

You can use android s inbuilt Patterns    public boolean validCellPhone String number        return android util Patterns PHONE matcher number  matches           This pattern is intended for searching for things that look like they   might be phone numbers in arbitrary text  not for validating whether   something is in fact a phone number  It will miss many things that are   legitimate phone numbers       The pattern matches the following          Optionally  a   sign followed immediately by one or more digits    Spaces  dots  or dashes may follow    Optionally  sets of digits in   parentheses  separated by spaces  dots  or dashes    A string starting   and ending with a digit  containing digits  spaces  dots  and or   dashes

User · Answer

Use isGlobalPhoneNumber   method of PhoneNumberUtils to detect whether a number is valid phone number or not   Example  System out println      g1     PhoneNumberUtils isGlobalPhoneNumber   912012185234     System out println      g2     PhoneNumberUtils isGlobalPhoneNumber  120121852f4       The result of first print statement is true while the result of second is false because the second phone number contains f

User · Answer

String validNumber          0-9  8 15                  if  number matches validNumber                     Uri call   Uri parse  tel     number                   Intent intent   new Intent Intent ACTION DIAL  call                   if  intent resolveActivity getPackageManager       null                        startActivity intent                                     return                else                   Toast makeText EditorActivity this   no phone number available   Toast LENGTH SHORT  show

[android] Phone number validation Android

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