[Bug]: Deeplink not working in android, bounce is happening.

[da-nish]

Description

I am integrating a third party platform to verify KYC using flutter_web_auth_2: ^4.1.0
It is working in iOS but in android it is trying open app and instantly coming back to custom tab.
before launching deeplink my app is showing in app switcher and after lauching deeplink it is not showing, But app is not crashing it is in running state i can see logs.

Attaching a video, please check

video.file.1.mp4

Link:
https://app.digio.in/#/gateway/login/asdasdf?redirect_url=app-digio-callback://digio/callback

Manifest:

<activity
          android:name="com.linusu.flutter_web_auth_2.CallbackActivity"
          android:exported="true" 
          android:launchMode="singleTop" //tried with and without this line
          android:noHistory="true" //tried with and without this line
        >
        <intent-filter android:label="flutter_web_auth_2">
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.BROWSABLE" />
            <data android:scheme="app-digio-callback" 
                android:host="digio"
                />
        </intent-filter>
        </activity>

Flutter code

final result = await FlutterWebAuth2.authenticate(
    url: url,
    callbackUrlScheme: "app-digio-callback",
    options: const FlutterWebAuth2Options(
      preferEphemeral: false, //tried with and without this line
      silentAuth: false, //tried with and without this line
      useWebview: false, //tried with and without this line
    ),
  );

Exception or Error

6
W/AidlConversionCppNdk(12851): aidl2legacy_AudioChannelLayout_audio_channel_mask_t: no legacy output audio_channel_mask_t found for AudioChannelLayout{layoutMask: 16}
D/callGcSupression(12851): java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[])' on a null object reference
D/ResourcesManagerExtImpl(12851): applyConfigurationToAppResourcesLocked app.getDisplayId() return callback.displayId:-1
3
I/oplus.android.OplusFrameworkFactoryImpl(12851): get feature:IOplusDynamicVsyncFeature
D/ScrollOptim [SceneManager](12851): updateCurrentActivity: mCurrentActivityName=com.linusu.flutter_web_auth_2.CallbackActivity, isOptEnable=true, isAnimAheadEnable=true, isFrameInsertEnable=true, InsertNum=1, isEnabledForScrollChanged=false
D/ActivityThread(12851): ComponentInfo{com.propsharecapital.idma.dev/com.linusu.flutter_web_auth_2.CallbackActivity} checkFinished=true 1
I/flutter (12851): ====> Callback: app-digio-callback://digio/callback?status=success&digio_doc_id=kid251127123835677t48a4co12tnkar&message=KYC%20process%20completed
3
D/callGcSupression(12851): java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[])' on a null object reference
D/ScrollOptim [SceneManager](12851): updateCurrentActivity: mCurrentActivityName=com.linusu.flutter_web_auth_2.CallbackActivity, isOptEnable=true, isAnimAheadEnable=true, isFrameInsertEnable=true, InsertNum=1, isEnabledForScrollChanged=false
D/ActivityThread(12851): ComponentInfo{com.propsharecapital.idma.dev/com.linusu.flutter_web_auth_2.CallbackActivity} checkFinished=true 1
D/ScrollOptim [SceneManager](12851): updateCurrentActivity: mCurrentActivityName=null, isOptEnable=true, isAnimAheadEnable=true, isFrameInsertEnable=true, InsertNum=1, isEnabledForScrollChanged=false
D/callGcSupression(12851): java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[])' on a null object reference
D/ScrollOptim [SceneManager](12851): updateCurrentActivity: mCurrentActivityName=com.linusu.flutter_web_auth_2.CallbackActivity, isOptEnable=true, isAnimAheadEnable=true, isFrameInsertEnable=true, InsertNum=1, isEnabledForScrollChanged=false
D/ActivityThread(12851): ComponentInfo{com.propsharecapital.idma.dev/com.linusu.flutter_web_auth_2.CallbackActivity} checkFinished=true 1
D/ScrollOptim [SceneManager](12851): updateCurrentActivity: mCurrentActivityName=null, isOptEnable=true, isAnimAheadEnable=true, isFrameInsertEnable=true, InsertNum=1, isEnabledForScrollChanged=false

Expected Behaviour

It should open the app, should not come back to chrome custom tab.

Screenshots

No response

Additional context

No response

Device

RealMe 14

OS

14

Browser

Chrome

Flutter version

3.32.8

flutter_web_auth_2 version

4.1.0

Checklist

• I have read and followed the entire troubleshooting guide and it has not provided the solution I need.
• I have provided all the information I can.

[vfiruz97]

I had the same issue and fixed that in the AndroidManifest.xml

• Remove any android:taskAffinity entries.

Here my setup for Deeplink

 <activity
    android:name="com.linusu.flutter_web_auth_2.CallbackActivity"
    android:exported="true">
      <intent-filter android:label="flutter_web_auth_2" android:autoVerify="true">
          <action android:name="android.intent.action.VIEW" />
          <category android:name="android.intent.category.DEFAULT" />
          <category android:name="android.intent.category.BROWSABLE" />

          <data android:scheme="test-app" android:host="github"/>
      </intent-filter>
  </activity>