问WifiP2pManager discoverPeers ActionListener返回繁忙

EN

//Activity Class

@Override
protected void onCreate(Bundle savedInstanceState) {

    ...
    mManager = (WifiP2pManager) getSystemService(Context.WIFI_P2P_SERVICE);
    mChannel = mManager.initialize(this, getMainLooper(), null);

    //Separate class here 
    mReceiver = new WiFiDirectBroadcastReceiver(mManager, mChannel, this);          

    //register the events to filter on to perform the broadcast receiver
    mIntentFilter = new IntentFilter();

    mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION);
    mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION);
    mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION);
    mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION); 

    mManager.discoverPeers(mChannel, new WifiP2pManager.ActionListener() {
        @Override
        public void onSuccess() {                   
           myTextView.setText("Success discovery");
        }

        @Override
        public void onFailure(int reasonCode) {
            myTextView.setText("Discovery errorcode:" + String.valueOf(reasonCode));
        }
    });

}