How to Do Name Validation Allowing Alphabet, Spaces and Dot in Android

How to do name validation allowing alphabet, spaces and dot in android?

Try using this one instead [a-zA-Z.\s]+ - allowing alphabet or dot or whitespaces.

Making an EditText field accept only letters and white spaces in Android

Try this:

EditText yourEditText = (EditText) findViewById(R.id.yourEditText);
yourEditText.setFilters(new InputFilter[] {
    new InputFilter() {
        @Override
        public CharSequence filter(CharSequence cs, int start,
                    int end, Spanned spanned, int dStart, int dEnd) {
            // TODO Auto-generated method stub
            if(cs.equals("")){ // for backspace
                 return cs;
            }
            if(cs.toString().matches("[a-zA-Z ]+")){
                 return cs;
            }
            return "";
        }
    }
});

Validation allow only number and characters in edit text in android

Instead of using your "manual" checking method, there is something very easy in Android:

InputFilter filter = new InputFilter() { 
    public CharSequence filter(CharSequence source, int start,
                               int end, Spanned dest, int dstart, int dend) { 

        for (int i = start;i < end;i++) { 
            if (!Character.isLetterOrDigit(source.charAt(i)) && 
                !Character.toString(source.charAt(i)).equals("_") && 
                !Character.toString(source.charAt(i)).equals("-")) 
            { 
                return ""; 
            } 
        } 
        return null; 
    } 
}; 

edittext.setFilters(new InputFilter[] { filter });

Or another approach: set the allowed characters in the XML where you are creating your EditText:

<EditText 
  android:inputType="text" 
  android:digits="0,1,2,3,4,5,6,7,8,9,*,qwertzuiopasdfghjklyxcvbnm,_,-" 
  android:hint="Only letters, digits, _ and - allowed" />

Java/Android Regex expression to allow names that may have apostrophe and/or hyphen

Use this:

^[a-zA-Z'\\-\\s]+$

I've tested it now and it works (already escaped for Java, don't add more slashes)

Pattern pattern = Pattern.compile("^[a-zA-Z'\\-\\s]+$");
Matcher matcherFirstName = pattern.matcher("M'ontagu-S'tuart-W'ortley-M' ackenzie");
matcherFirstName.find(); //true

Regular Expression for alphabets with spaces

Just add the space to the [ ] :

var regex = /^[a-zA-Z ]*$/;

How to create EditText accepts Alphabets only in android?

EditText state = (EditText) findViewById(R.id.txtState);


                Pattern ps = Pattern.compile("^[a-zA-Z ]+$");
                Matcher ms = ps.matcher(state.getText().toString());
                boolean bs = ms.matches();
                if (bs == false) {
                    if (ErrorMessage.contains("invalid"))
                        ErrorMessage = ErrorMessage + "state,";
                    else
                        ErrorMessage = ErrorMessage + "invalid state,";

                }