您可以设置的ID稍后将在R.id类使用XML资源文件中使用，并让在编译期间Android SDK中给他们独特的价值观。

You can set ID's you'll use later in R.id class using an xml resource file, and let Android SDK give them unique values during compile time.

RES /价值/ ids.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <item name="my_edit_text_1" type="id"/>
    <item name="my_button_1" type="id"/>
    <item name="my_time_picker_1" type="id"/>

</resources>

要使用它在code：

myEditTextView.setId(R.id.my_edit_text_1);