android studio中菜单的图标不可见

Question

I use navigation drawer activity in my code. For certain menu, icons are visible. But for the rest it appears as a shaded square/circle. I tried clean/rebuild/invalidate cache and restart options, still no solution. Any help please...

activity_main_drawer.xml:

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

    <group android:checkableBehavior="single">
        <item
            android:id="@+id/fullstackdeveloper"
            android:icon="@mipmap/ic_launcher_stack"
            android:title="@string/home_label" />
        <item
            android:id="@+id/resourceperson"
            android:icon="@mipmap/ic_launcher_person"
            android:title="@string/about_us_label" />
        <item
            android:id="@+id/collegeworkshops"
            android:icon="@mipmap/ic_launcher_workshop"
            android:title="@string/portfolio_label" />
        <item
            android:id="@+id/tutorials"
            android:icon="@mipmap/ic_launcher_tutorial"
            android:title="@string/contacts_label" />
        <item
            android:id="@+id/tutorialvideos"
            android:icon="@mipmap/ic_launcher_video"
            android:title="@string/tutvideos_label" />

        <item
            android:id="@+id/scripts"
            android:icon="@mipmap/ic_launcher_script"
            android:title="@string/scripts_label" />

        <item
            android:id="@+id/androidapps"
            android:icon="@mipmap/ic_launcher_android"
            android:title="@string/androidapps_label" />


        <item
            android:id="@+id/analytics"
            android:icon="@mipmap/ic_launcher_analytics"
            android:title="@string/analytics_label" />

        <item
            android:id="@+id/python"
            android:icon="@mipmap/pythonlogo"
            android:title="@string/python_label" />

        <item
            android:id="@+id/rprogramming"
            android:icon="@mipmap/rprogramming"
            android:title="@string/rprogramming_label" />

        <item
            android:id="@+id/machinelearning"
            android:icon="@mipmap/ic_launcher_machine"
            android:title="@string/machinelearning_label" />

        <item
            android:id="@+id/booking"
            android:icon="@mipmap/contacts"
            android:title="@string/booking_label" />


    </group>

Answer 1

Try this way :

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

<menu xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<group android:checkableBehavior="single">
    <item
        android:id="@+id/Home"
        app:actionLayout="@layout/home_item"
        tools:ignore="MenuTitle" />
</group>

==========home_item============

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_centerInParent="true"
    android:layout_height="wrap_content">
<ImageView
    android:id="@+id/home"
    android:layout_width="wrap_content"
    android:src="@mipmap/home"
    android:layout_centerVertical="true"
    android:layout_height="wrap_content">

</ImageView>

<TextView
    android:layout_width="wrap_content"
    android:layout_centerVertical="true"
    android:text="@string/HOME"
    android:textColor="@color/colorblack"
    android:layout_toRightOf="@+id/home"
    android:layout_marginLeft="@dimen/_8sdp"
    android:layout_height="wrap_content">

</TextView>

<ImageView
    android:id="@+id/right"
    android:alpha="0.3"
    android:layout_width="@dimen/_20sdp"
    android:src="@mipmap/right_arrow"
    android:layout_margin="@dimen/_8sdp"
    android:layout_alignParentRight="true"
    android:layout_centerVertical="true"
    android:padding="@dimen/_4sdp"
    android:layout_height="@dimen/_20sdp">

</ImageView>
    <View
        android:layout_width="match_parent"
        android:layout_height="2dp"
        android:layout_below="@+id/right"
        android:layout_marginLeft="@dimen/_22sdp"
        android:background="#c0c0c0"/>
</RelativeLayout>

Answer 2

Make sure you are following material design stander while creating icon for menu. If you follow then it will show icons otherwise not. You can confirm this by setting following icon

android:icon="@android:drawable/ic_menu_search"

You will see this icon in your drawer.

Above suggestion is 1 way to show icon in drawer other way is what @jeetparmar has suggest in above answer you can follow that also.