Unable to integrate microsoft azure sso login in flutter app using flutter_appauth

Caused by: java.lang.ClassNotFoundException: Didn't find class "com.linusu.flutter_appauth.CallbackActivity" on path: DexPathList[[zip file "/data/app/~~oiOQSC4LyrKH8vDyPfAFKg==/com.marworx.ssoapp-ZpELo6-QfZ-R75H69XVGJg==/base.apk"],nativeLibraryDirectories=[/data/app/~~oiOQSC4LyrKH8vDyPfAFKg==/com.marworx.ssoapp-ZpELo6-QfZ-R75H69XVGJg==/lib/arm64, /data/app/~~oiOQSC4LyrKH8vDyPfAFKg==/com.marworx.ssoapp-ZpELo6-QfZ-R75H69XVGJg==/base.apk!/lib/arm64-v8a, /system/lib64, /system_ext/lib64]]

How to resolve this crashing issue in flutter android app

The error ClassNotFoundException: Didn't find class "com.linusu.flutter_appauth.CallbackActivity" indicates that the required CallbackActivity class is missing from your project configuration. To resolve this issue, follow these steps:

Open the android/app/src/main/AndroidManifest.xml file and add the redirect URI scheme as shown below:

<activity
    android:name="net.openid.appauth.RedirectUriReceiverActivity"
    android:exported="true">
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data
            android:scheme="com.yourapp.app"
            android:host="oauthredirect" />
    </intent-filter>
</activity>

Include the required dependencies in your pubspec.yaml file:

dependencies:
  flutter_appauth: ^5.0.0
flutter_microsoft_authentication: ^0.1.0
  http: ^0.15.0

Run flutter pub get to fetch the dependencies.

<key>CFBundleURLTypes</key>
<array>
    <dict>
        <key>CFBundleURLSchemes</key>
        <array>
            <string>com.yourapp.app</string>
        </array>
    </dict>
</array>

Thanks to @Gerrit van Huyssteen for the steps. I referred this doc for Flutter Mobile SSO with Microsoft Login

import 'package:flutter_microsoft_authentication/flutter_microsoft_authentication.dart';
...
FlutterMicrosoftAuthentication fma = FlutterMicrosoftAuthentication(
  kClientID: "<client-id>",
  kAuthority: "https://login.microsoftonline.com/organizations",
  kScopes: ["User.Read", "User.ReadBasic.All"],
  androidConfigAssetPath: "assets/auth_config.json" 
);
String authToken = await this.fma.acquireTokenInteractively;
String authToken = await this.fma.acquireTokenSilently;
await this.fma.signOut;
await this.fma.loadAccount;