Android studio "Class 〇〇 never used"

前提・実現したいこと

以下のレポジトリをもとにsalesforce marketingcloudのモバイルプッシュを実装したい

元のコードレポジトリ
https://github.com/salesforce-marketingcloud/MarketingCloudSDK-Android

"Class 〇〇 never used"が要因でアプリが強制終了すると思ったため

発生している問題・エラーメッセージ

Class "Learningapp" is never used

該当のソースコード

kotlin
1
2package com.salesforce.marketingcloud.learningapp
3
4import com.salesforce.marketingcloud.MarketingCloudConfig
5import com.salesforce.marketingcloud.notifications.NotificationCustomizationOptions
6
7class Learningapp : BaseLearningApplication() {
8
9    override val configBuilder: MarketingCloudConfig.Builder
10        get() = MarketingCloudConfig.builder().apply {
11            setApplicationId(BuildConfig.MC_APP_ID)
12            setAccessToken(BuildConfig.MC_ACCESS_TOKEN)
13            setSenderId(BuildConfig.MC_SENDER_ID)
14            setMid(BuildConfig.MC_MID)
15            setMarketingCloudServerUrl(BuildConfig.MC_SERVER_URL)
16            setNotificationCustomizationOptions(NotificationCustomizationOptions.create(R.drawable.ic_notification))
17            setInboxEnabled(true)
18            setAnalyticsEnabled(true)
19            setPiAnalyticsEnabled(true)
20            setGeofencingEnabled(true)
21            setProximityEnabled(true)
22            setUrlHandler(this@Learningapp)
23        }
24}
25

Androidmanifestxml
1
2<?xml version="1.0" encoding="utf-8"?>
3<manifest xmlns:android="http://schemas.android.com/apk/res/android"
4    xmlns:tools="http://schemas.android.com/tools"
5    package="com.salesforce.marketingcloud.learningapp">
6
7    <!-- FINE_LOCATION is required for Geofence and Proximity messaging features.-->
8    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
9
10    <!-- ACCESS_BACKGROUND_LOCATION is required for Geofence and Proximity messaging features on Q devices. -->
11    <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
12
13    <!-- Boot complete is needed so that the SDK can re-register Geofences and Proximity beacons after a reboot -->
14    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
15
16    <application
17        android:name=".Learningapp"
18        android:allowBackup="false"
19        android:icon="@mipmap/ic_launcher"
20        android:label="${appName}${appNameSuffix}"
21        android:roundIcon="@mipmap/ic_launcher_round"
22        android:supportsRtl="true"
23        android:theme="@style/MyTheme.DayNight"
24        tools:ignore="GoogleAppIndexingWarning">
25        <activity android:name=".MainActivity">
26            <intent-filter>
27                <action android:name="android.intent.action.MAIN" />
28
29                <category android:name="android.intent.category.LAUNCHER" />
30            </intent-filter>
31
32            <nav-graph android:value="@navigation/nav_graph" />
33        </activity>
34    </application>
35
36</manifest>

試したこと

<application タグに android:name=".Learningapp"を追加してにもかかわらず使用されてないと認識される。

補足情報（FW/ツールのバージョンなど）

Android Studio 3.6.3
Build #AI-192.7142.36.36.6392135, built on April 14, 2020
Runtime version: 1.8.0_212-release-1586-b04 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0
GC: ParNew, ConcurrentMarkSweep
Memory: 1237M
Cores: 8
Registry: ide.new.welcome.screen.force=true
Non-Bundled Plugins: org.jetbrains.kotlin, com.google.services.firebase