How display Firebase In-App Messaging on TWA? - trusted-web-activity

Question

I tried to display In-App Messaging but it didn't show up with TWA.
In-App Messaging works without any problems with normal Activity.
I use https://github.com/GoogleChrome/android-browser-helper/tree/main/demos/twa-basic to test TWA.
My application is correctly configured with Firebase.
I created a campaign.
My logs after publishing the campaign:
I closed my application and then launched it and I didn't see In-App Messaging.
I tested another application with a standard Activity and there was no problem displaying In-App Messaging.

Answer 1

I took a lot of time today to answer this question for myself.
In my opinion TWA can't work with In-App Messaging.
I am not an Android programmer and I could be wrong.
This is my test Activity:
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FirebaseInAppMessaging.getInstance().setMessagesSuppressed(true);
}
public void onClick(View view) {
CampaignMetadata campaignMetadata = new CampaignMetadata("test_campaign", "name", true);
Text title = Text.builder().setText("test").setHexColor("#000000").build();
Text body = Text.builder().setText("test").setHexColor("#000000").build();
ModalMessage message = ModalMessage.builder()
.setBackgroundHexColor("#ffffff")
.setTitle(title)
.setBody(body)
.build(campaignMetadata, null);
FirebaseInAppMessagingDisplay.getInstance().testMessage(this, message, null);
FirebaseInAppMessaging.getInstance().setMessagesSuppressed(false);
}
#Override
protected void onResume() {
super.onResume();
}
}
To display In App Messaging we need a Activity. I think we can only In App Messaging display on splash screen TWA but i didn't try it.