Android – how to place item icons in the navigation drawer

I'm developing an application that uses the navigation drawer. When I try to place the item icon, it provides me with the path of the image, such as RES / drawale / BG. JPG ". I don't know what to do

Here are my main activity codes:

 private void init_navigator() {
    // Navigation Drawer
    mTitle = mDrawerTitle = getTitle();

    mDrawerLayout = (DrawerLayout) findViewById(R.id.main_activity_DrawerLayout);
    mDrawerLayout.setStatusBarBackgroundColor(getResources().getColor(R.color.primaryDark));
    mScrimInsetsFrameLayout = (ScrimInsetsFrameLayout) findViewById(R.id.main_activity_navigation_drawer_rootLayout);
    mDrawerList = (ListView) findViewById(R.id.left_drawer);
    mDrawerItmes = getResources().getStringArray(R.array.drawer_titles);
  mDrawerItmes = getResources().getStringArray(R.array.nav_drawer_icons);

This is my string. XML code

   <string-array name="drawer_titles">
    <item>About Us</item>
    <item>FeedBack</item>
    <item>Setting</item>
    <item>Share App</item>
    <item>Rate Us</item>
    <item>logout</item>
</string-array>

<array name="nav_drawer_icons">
    <item>@drawable/bg</item>
    <item>@drawable/bg</item>
    <item>@drawable/bg</item>
    <item>@drawable/bg</item>
    <item>@drawable/b</item>
    <item>@drawable/bg</item>

</array>

resolvent:

Add the following code in the navigationview of XML:

app:menu="@menu/drawer_menu_icons"

Then create a new XML file named "painter_menu_icons" in the menu folder and do the following:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">

    <group
        android:id="@+id/homegroup"
        android:checkableBehavior="single">
        <item
            android:id="@+id/nav_home"
            android:icon="@drawable/homeicon"
            android:title="Main screen" />
        <item
            android:id="@+id/nav_branches"
            android:icon="@drawable/backspace"
            android:title="Branch selection" />

    </group>
</menu>

And add any icons you want:)