How to use InputFormatter on Flutter TextField?

Question

What do I need to insert into TextField(inputFormatters:?

I want to disallow \\ and / in one TextField and only allow

Answer 1

Other options:

• lowercase letters : a-z

• capital letters : A-Z

• lowercase vowels accented : á-ú

• capital vowels accented : Á-Ú

• numbers : 0-9
• space : (a space)

Note: the spacings are to explain better

inputFormatters: [
        WhitelistingTextInputFormatter(RegExp("[a-z A-Z á-ú Á-Ú 0-9]"))
      ]