How to have a prefix and still do formatting

[reejosamuel]

So i will explain the scenario, so we have a better understanding of the question.

I want a prefix like +1 90 which cannot be backspaced by the users and I'm able to get this using

[self.phoneField.formatter setDefaultOutputPattern:@"+1 90 ## ########"];    
    self.phoneField.formatter.showFormatOnlyIfTextExist = NO;
    [self.phoneField setFormattedText:@""];

but at the same time i want to pattern match what comes after the prefix for e.g.
+1 90 10 12345678 then show a us flag
+1 90 20 12345678 then show a gb flag

    [self.phoneField.formatter addOutputPattern:@"+1 90 ## ########"
                                      forRegExp:@"^19010\\d*$"
                                      imagePath:@"SHSPhoneImage.bundle/flag_us"];

    [self.phoneField.formatter addOutputPattern:@"+1 90 ## ########"
                                      forRegExp:@"^19020\\d*$"
                                      imagePath:@"SHSPhoneImage.bundle/flag_gb"];

My problem is I don't want the user to remove the prefix +1 90
Please can you advice how i can do this?.

[Serheo]

Dear, @reejosamuel.
Thank you for using library.

Sure, you can do it by:

[self.phoneField.formatter setDefaultOutputPattern:@"+1 90 ## #######"];
self.phoneField.formatter.showFormatOnlyIfTextExist = NO;
[self.phoneField setFormattedText:@""];

[self.phoneField.formatter addOutputPattern:@"+1 90 ## #######" forRegExp:@"^1\\d*$" imagePath:@"SHSPhoneImage.bundle/flag_ru"];
[self.phoneField.formatter addOutputPattern:@"+1 90 ## #######" forRegExp:@"^2\\d*$" imagePath:@"SHSPhoneImage.bundle/flag_us"];

RegExp matches against valuable symbols (## #######).
Also, make sure to provide your images. Now pod version of library provides without image bundle.

[reejosamuel]

Hey thanks for pointing out that REGEX is matched against the hashes. That fixed it. Images I'm using mine, it was just for the example.

Awesome job with the lib.

[Serheo]

You Welcome)