App is not indexable by Google Search; consider adding at least one Activity with an ACTION-VIEW intent filter. See issue explanation for more details. less... (Ctrl+F1) Inspection info:Adds URLs to get your app into the Google index, to get installs and traffic to your app from Google Search.
But I Have already considered one activity with an action view intent filter. Please help.
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".StartActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".RegisterActivity"
android:parentActivityName=".StartActivity"/>
<activity android:name=".MainActivity" />
<activity android:name=".LoginActivity"
android:parentActivityName=".StartActivity"/>
</application>
<action android:name="android.intent.action.VIEW" />
– Manohar