Android EditText监听小数点让用户只能输入小数点后两位

EditText当用户输入小数点的时候 监听小数点后面的位数，只要大于两位就立马删掉，

参考原文： 点击打开链接

 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());
                    }
                }
                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  

            }

        });