Listener already in use (Service Discovery)

Question

I can\'t resolve one service while another is being resolved? If that\'s what the error means... What is the way to wait until it is resolved?

@Override
public v         


        

Answer 1

I had this problem as well, and had been following the Android NsdHelper implementation laid out in NsdChat here. This example shows creating a single NsdManager.ResolveListener mResolveListener in the NsdHelper class, and using that ResolveListener for all calls to NsdManager.resolveService.

From here I read that "a separate Listener is to be used for each active registration or discovery request".

So instead of using a class variable mResolveListener, create a new listener every time you call mNsdManager.resolveService:

@Override
public void onServiceFound(NsdServiceInfo serviceInfo) {
    Log.d(TAG, "Service found: "+ serviceInfo);
    if (serviceInfo.getServiceType().equals(SERVICE_TYPE)){
        mNsdManager.resolveService(serviceInfo, new NsdManager.ResolveListener() {
            @Override
            public void onResolveFailed(NsdServiceInfo serviceInfo, int errorCode) {
                Log.e(TAG, "Resolve Failed: " + serviceInfo);
            }
            @Override
            public void onServiceResolved(NsdServiceInfo serviceInfo) {
                Log.i(TAG, "Service Resolved: " + serviceInfo);
            }
        });
    }
}