Getting character count of EditText

EditText edittext;
private final TextWatcher mTextEditorWatcher = new TextWatcher() {

        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

        }

        public void onTextChanged(CharSequence s, int start, int before, int count) {
           //This sets a textview to the current length
           textview.setText(String.valueOf(s.length());
        }

        public void afterTextChanged(Editable s) {
        }
};
 editText.addTextChangedListener(mTextEditorWatcher);

Just grab the text in the EditText as a string and check its length:

int length = editText.getText().length();