Added the filter but the checkable thing is still broken

.idea/vcs.xml

@@ -2,5 +2,6 @@
 <project version="4">
   <component name="VcsDirectoryMappings">
     <mapping directory="" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
   </component>
 </project>
\ No newline at end of file

app/src/main/java/com/testapp/NavDrawerActivity.java

@@ -16,6 +16,7 @@ import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.Toast;
 
@@ -188,14 +189,14 @@ public class NavDrawerActivity extends AppCompatActivity
         // Handle navigation view item clicks here.
         int id = item.getItemId();
 
-        if (id == R.id.nav_camera) {
+        if (id == R.id.nav_all_items) {
             // Handle the camera action
-        } else if (id == R.id.nav_gallery) {
+        } else if (id == R.id.nav_filter) {
 
         }
 
         DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
-        drawer.closeDrawer(GravityCompat.START);
+        //drawer.closeDrawer(GravityCompat.START);
         return true;
     }
 

app/src/main/res/menu/activity_nav_drawer_drawer.xml

 <?xml version="1.0" encoding="utf-8"?>
-<menu xmlns:android="http://schemas.android.com/apk/res/android">
+<menu xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <group android:checkableBehavior="single">
+    <group android:id="@+id/grp1" >
         <item
-            android:id="@+id/nav_camera"
-            android:icon="@android:drawable/ic_menu_view"
-            android:title="@string/drawer_1" />
+            android:id="@+id/nav_all_items"
+            android:title="@string/drawer_1"
+            android:checkable="false" />
+    </group>
+
+    <group
+        android:id="@+id/grp2">
         <item
-            android:id="@+id/nav_gallery"
-            android:icon="@android:drawable/ic_menu_sort_by_size"
+            android:id="@+id/nav_filter"
             android:title="@string/drawer_2"
-            />
+            android:checkable="false" />
+            <item
+                android:id="@+id/nav_type"
+                android:title="@string/drawer_3"
+                android:checkable="false" />
+            <item android:title="@string/drawer_3_1"
+                android:id="@+id/nav_type_main"
+                android:checkable="true" />
+            <item android:title="@string/drawer_3_2"
+                android:id="@+id/nav_type_drink"
+                android:checkable="true" />
+            <item android:title="@string/drawer_3_3"
+                android:id="@+id/nav_type_dessert"
+                android:checkable="true" />
+
+        <item
+            android:id="@+id/nav_pricerange"
+            android:title="@string/drawer_4"
+            android:checkable="false"
+            android:visible="false" />
+
+            <item
+                android:id="@+id/nav_locations"
+                android:title="@string/drawer_5"
+                android:checkable="false" />
+            <item android:title="@string/drawer_5_3"
+                android:id="@+id/nav_locations_zekaf"
+                android:checkable="true" />
+            <item android:title="@string/drawer_5_1"
+                android:checkable="true"
+                android:id="@+id/nav_location_gonzaga" />
+            <item android:title="@string/drawer_5_2"
+                android:id="@+id/nav_location_JSEC"
+                android:checkable="true" />
     </group>
 
 </menu>

app/src/main/res/values/strings.xml

@@ -16,6 +16,15 @@
     <string name="title_activity_nav_drawer">Main Menu</string>
     <string name="drawer_1">All Items</string>
     <string name="drawer_2">Filters</string>
+    <string name="drawer_3">Type</string>
+    <string name="drawer_3_1">  Main Course</string>
+    <string name="drawer_3_2">  Drink</string>
+    <string name="drawer_3_3">  Dessert</string>
+    <string name="drawer_4">Price Range</string>
+    <string name="drawer_5">Locations</string>
+    <string name="drawer_5_1">  Gonzaga</string>
+    <string name="drawer_5_2">  JSEC</string>
+    <string name="drawer_5_3">  Zekaf</string>
     <string name="hint_search">Search</string>
 
     <string name="navigation_drawer_open">Open navigation drawer</string>