getphonevalidator method
Implementation
String? Function(String?) getphonevalidator(
{String? emptyErrorText, String? errorText, int? length}) {
final int txtlength = length ?? 6;
emptyErrorText ??= 'Please enter phone number';
errorText ??= 'Enter your $txtlength digit phone number';
String? phonevalidator(String? value) {
if (value == null || value.isEmpty) {
return emptyErrorText;
} else if (value.length < txtlength) {
return errorText;
}
return null;
}
return phonevalidator;
}