安卓限制edittext只能输入小数点后两位数,小数点前8位

/**  * 限制edittext只能输入小数点后两位数,小数点前8位  */ public static void setPricePoint(final EditText editText) {
    editText.addTextChangedListener(new TextWatcher() {

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

            if (s.toString().contains(".")) {
                if (s.length() - 1 - s.toString().indexOf(".") > 2) {
                    s = s.toString().subSequence(0,
                            s.toString().indexOf(".") + 3);
                    editText.setText(s);
                    editText.setSelection(s.length());
                }
            } else {
                if (s.length() > 8) {
                    editText.setText(s.subSequence(0, 8));
                    editText.setSelection(s.length() - 1);
                }
            }

            if (s.toString().trim().substring(0).equals(".")) {
                s = "0" + s;
                editText.setText(s);
                editText.setSelection(2);
            }

            if (s.toString().startsWith("0")
                    && s.toString().trim().length() > 1) {
                if (!s.toString().substring(1, 2).equals(".")) {
                    editText.setText(s.subSequence(0, 1));
                    editText.setSelection(1);
                    return;
                }
            }
        }

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

        }

        @Override
        public void afterTextChanged(Editable s) {
            // TODO Auto-generated method stub   }

    });
}