Set App icon for multi dimensions screen sizes

How to / Third Party Tooling
1

Hello guys,

I’m trying to set a multi dimensions app icon for my app by following this way:

in the /android/app/src/main/res path i created the mipmap folders for different dimensions and placed an icon in every folder
and in the AndroidManifest.xml i added this:

<application
            android:name=".MainApplication"
            android:label="@string/app_name"
            android:icon="@mipmap/ic_launcher"
            android:roundIcon="@mipmap/ic_launcher_round"
            android:allowBackup="false"
            android:theme="@style/AppTheme">
        <activity
                android:name=".MainActivity"
                android:label="@string/app_name"
                android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
                android:windowSoftInputMode="adjustResize">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
        <activity android:name="com.facebook.react.devsupport.DevSettingsActivity"/>
        <uses-library android:name="com.google.android.maps"/>
    </application>

but after my build expo is displaying the default expo icon instead of my uploaded icons, what am i missing ??