WearableListenerService onMessageReceived 不起作用

Question

I am sending messages from my phone to the Wear. I want to be able to receive messages even when the wear activity is closed.

I wrote a small service which launches my main Activity (UI) if it receives a message. However, the onMessageReceived function never gets called in the WearableListenerService. I also tried the sample code at this tutorial , but it doesn't seem to work for me.

What I have tried so far:

1. Other threads posted on SO with the same problem mentioned issues with applicationId in mobile and wear module. The applicationId is the same in both modules.
2. I tried writing the messageReceived function within the Activity, and it works as long as the activity is open (which is the expected behavior).
3. I know that I don't have to launch the WearableListenerService, it automatically gets started upon receiving a message, but I explicitly tried launching it from the activity, as a last attempt. The service does get created, but the onMessageReceived() function doesn't work. It doesn't even reach the function (tested by putting logs).
4. I also tried making it a regular background service (as you would in Android), copy the communication part to service, but to no avail.

Here is the code:

Wear Manifest:

  <service android:name=".MessageService">
        <intent-filter>
            <action android:name="com.google.android.gms.wearable.DATA_CHANGED" />
            <action android:name="com.google.android.gms.wearable.MESSAGE_RECEIVED" />
            <action android:name="com.google.android.gms.wearable.CAPABILITY_CHANGED" />
            <action android:name="com.google.android.gms.wearable.CHANNEL_EVENT" />
            <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
            <data android:scheme="wear" android:host="*" android:pathPrefix="/prefix" />
        </intent-filter>
    </service>

MessageService:

public class MessageService extends WearableListenerService {
public Handler h;
@Override
public void onCreate() {

    Log.i("service", "im here");

}
@Override
public void onMessageReceived(MessageEvent messageEvent) {
    Log.i("onMessageReceived","im here!");
        Intent intent = new Intent( this, MainActivity.class );
        intent.addFlags( Intent.FLAG_ACTIVITY_NEW_TASK );
        startActivity( intent );

       }

The code the Main Activity in Wear and the main activity on mobile is from this example. .

The communication within the activity works, the service is not working. Help?

Answer 1

The message path in the mobile app has to match that in the intent filter of the service. You have this as '/prefix' in the intent filter but is 'message1' or 'message2' in the mobile app.