导航抽屉：多个活动元素

Question

I use menu elements inside a navigation drawer to toggle map layers, but right now only one can be highlighted, as soon as I tap on another, the previous one looses it's highlight. This is the code I have so far:

<group android:checkableBehavior="all">
        <item
            android:id="@+id/traffic_layer"
            android:icon="@drawable/ic_menu_gallery"
            android:title="Traffic layer" />
        <item
            android:id="@+id/work_zones"
            android:icon="@drawable/ic_menu_gallery"
            android:title="Work zones" />
        <item
            android:id="@+id/accidents"
            android:icon="@drawable/ic_menu_gallery"
            android:title="Accidents" />
        <item
            android:id="@+id/incidents"
            android:icon="@drawable/ic_menu_gallery"
            android:title="Incidents" />
        <item
            android:id="@+id/poi"
            android:icon="@drawable/ic_menu_gallery"
            android:title="POI" />
    </group>

How can I achieve something like Google Maps layer multiselect navigation drawer list? Google Maps toggles

Thanks for the answers and sorry for my poor english :)

Answer 1

If you are able you can use Group twice

Like this

<group android:checkableBehavior="single">
    <item
        android:id="@+id/nav_1"
        android:icon="@drawable/ic_icon"
        android:title="Item 1"
        android:checked="true"/>

    <item
        android:id="@+id/nav_2"
        android:icon="@drawable/ic_icon"
        android:title="Item 2" />


<item android:title="Subtitle 1">
    <menu>
     <group android:checkableBehavior="single">

        <item
            android:id="@+id/nav_2"
            android:icon="@drawable/ic_icon"
            android:title="Item 3" />

        <item
            android:id="@+id/nav_4"
            android:icon="@drawable/ic_icon"
            android:title="Item 4" />

        <item
            android:id="@+id/nav_5"
            android:icon="@drawable/ic_icon"
            android:title="Item 5" />
     </group>
    </menu>
  </item>
 </group>

So You can have multiple items selected