什么能识别抽屉布局中的抽屉片段？

Question

假设我们有这个XML文件：

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout 
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".DeviceControlActivity">

<!-- As the main content view, the view below consumes the entire
     space available using match_parent in both dimensions. -->
<FrameLayout
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<!-- The drawer is given a fixed width in dp and extends the full height of
     the container. -->
<fragment
    android:id="@+id/navigation_drawer"
    android:name="com.anis.windowscontrollerclient.NavigationDrawerFragment"
    android:layout_width="@dimen/navigation_drawer_width"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    tools:layout="@layout/drawer_device_control" />
</android.support.v4.widget.DrawerLayout>

什么是可识别抽屉片段视图的东西？更具体地说，当您单击操作栏中的“抽屉”按钮时，如何分辨使用哪个{'{1}}来调用哪个“视图ID”？