Question

Im trying to strip all non standard letter characters from an edittext textbox on an android app im making. I am successfully creating a listener, obtaining the value and removing bad chrs via a regex. however, the .setText line below causes the app to crash. Anyone got any ideas how to get around this and dynamically mask certain chrs?

filenameTextBox.addTextChangedListener(new TextWatcher() { 

    public void onTextChanged(CharSequence s, int start, int before, int count) {

        FILENAME=s.toString();
        FILENAME = FILENAME.replaceAll("[^a-zA-Z]", "");
        filenameTextBox.setText(FILENAME);
   }
}

Answer 1

Hope this snippet will help you if i understand your problem clearly

        public void afterTextChanged(Editable editable)
        {
            if (editable.length() != 0)
            {
                chatTextArea.removeTextChangedListener(this);
                chatTextArea.setText("your text");
                chatTextArea.addTextChangedListener(this);
            }
        }