MainActivity not working

MainActivity.kt

class MainActivity: FlutterActivity() {

    private lateinit var appUpdateManager: AppUpdateManager
    private val MY_REQUEST_CODE: Int = 100

    override fun onCreate(savedInstanceState: Bundle?, persistentState: PersistableBundle?) {
        super.onCreate(savedInstanceState, persistentState)
        Toast.makeText(this, "WELCOME", Toast.LENGTH_LONG).show() // NOT CALLED

         
    }
    
        override fun onResume() {
        super.onResume()
        
        Toast.makeText(this, "RESUMING", Toast.LENGTH_LONG).show() // NOT CALLED
        }
    
}

manifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.jeyasingh.cableconnection.cable_connection_app">
  
    <uses-permission android:name="android.permission.INTERNET" />
  
   <application
        android:label="Jcollects"
       android:usesCleartextTraffic="true"
        android:name="${applicationName}"
        android:icon="@mipmap/ic_launcher">
     
        <activity
            android:name=".MainActivity"
            android:exported="true"
            android:launchMode="singleTop"
            android:theme="@style/LaunchTheme"
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
            android:hardwareAccelerated="true"
            android:windowSoftInputMode="adjustResize">
          
                      <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
          
          
          
          <!-- Specifies an Android theme to apply to this Activity as soon as
                 the Android process has started. This theme is visible to the user
                 while the Flutter UI initializes. After that, this theme continues
                 to determine the Window background behind the Flutter UI. -->
            <meta-data
                android:name="com.google.firebase.messaging.default_notification_icon"
                android:resource="@drawable/ic_stat_name" />
            <meta-data android:name="com.google.firebase.messaging.default_notification_color"
                android:resource="@color/google_blue" />
            <meta-data
              android:name="io.flutter.embedding.android.NormalTheme"
              android:resource="@style/NormalTheme"
              />

        </activity>
        <!-- Don't delete the meta-data below.
             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
        <meta-data
            android:name="flutterEmbedding"
            android:value="2" />
    </application>
  
</manifest>