push notifications not working for webview app

I have tested android app using my demo site, I have captured the video for your reference, I got push notification, notification click is working for me.

I have uploaded video in following google drive folder,

https://drive.google.com/file/d/1Gta_zT8QAPkSesaMkBP3K42-6y5UwAy0/view?usp=sharing

I have uploaded android app sample code (tested against my site) in below google drive folder,

https://drive.google.com/file/d/1tBbsyIZqODK_QxUsnxA5Ric5YWwrmlkp/view?usp=sharing

Updated general version of code is available in github library

https://github.com/muraliwebworld/android-app-to-integrate-push-notification-wordpress-plugin

Firebase httpv1 version requires separate intent filter, please use intent filter for mainactivity like below

        <activity
                android:name=".MainActivity"
                android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <intent-filter>
                <action android:name="OPEN_MAIN_ACTIVITY" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>

Following is optional, Google requires encryption needs to be AES/GCM/NoPadding, so i have also updated encryption logic using AES/GCM/NoPadding, at present plugin works for both old encryption method (AES/CBC/PKCS5Padding) as well as for new method AES/GCM/NoPadding.

Following is example code encryption using AES/GCM/NoPadding to connect to PNFPB plugin REST API

    /*** NEW method of encrypting using AES GCM Nopadding - 2024 */
     SecureRandom secureRandom = new SecureRandom();
     byte[] iv = new byte[16]; // GCM mode typically uses a 12-byte IV
     secureRandom.nextBytes(iv);
     IvParameterSpec ivSpec = new IvParameterSpec(iv);
     // Create an AES key from the secret
     SecretKeySpec secretKey = new SecretKeySpec(secret.getBytes(), "AES");
     // Initialize Cipher in AES/GCM/NoPadding mode
     Cipher cipher = Cipher.getInstance("AES/GCM/NoPadding");
     cipher.init(Cipher.ENCRYPT_MODE, secretKey, new GCMParameterSpec(128, iv));
     // Encrypt the token
     byte[] encryptedToken = cipher.doFinal(token.getBytes("UTF-8"));
     String finalresultstring = Base64.encodeToString(encryptedToken, Base64.NO_WRAP);
     String ivString = Base64.encodeToString(iv, Base64.NO_WRAP);
     // HMAC calculation for integrity check (if needed)
     Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
     sha256_HMAC.init(new SecretKeySpec(secret.getBytes(), "HmacSHA256"));
     byte[] hmacBytes = sha256_HMAC.doFinal(token.getBytes("UTF-8"));
     StringBuilder byteContent = new StringBuilder();
     for (byte b : hmacBytes)
     {
        byteContent.append(String.format("%02x", b));
     }
     POST_PARAMS = finalresultstring + ":" + ivstring + ":" + byteContent + ":" + byteContent;
     postRequest(POST_PARAMS);
     WebSettings settings = mywebView.getSettings();