Reputation: 647
I am limiting the input in a UITextField to only characters from the alphabet like this in shouldChangeCharactersIn
:
switch textField {
case descriptionTextField:
return prospectiveText.containsOnlyCharactersIn(matchCharacters: "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZáäâàæãåāéëêèęėēóôòõœøōúüûùūíïìîįīÁÄÂÀÆÃÅĀÓÖÔÒÕŒØŌÚÜÛÙŪÍÏÌÎĮĪ ") && prospectiveText.count <= 51
default:
return true
}
Now while this works like a charm, I want to allow users to insert emoji as well. Is there any way I can accomplish this? I don't want them to insert numbers or special characters though.
Upvotes: 0
Views: 858
Reputation: 4570
Simply check reverse condition, in condition, include the number and all special characters, and put '!' before prospectiveText.containsOnlyCharactersIn
so if found any number and special character which is you have specified then it will return false.
switch textField {
case descriptionTextField:
return !prospectiveText.containsOnlyCharactersIn(matchCharacters: "<put here numbers and all your symbols you want to ignore> ") && prospectiveText.count <= 51
default:
return true
}
Upvotes: 0