Question

我正在使用适用于Android的Google Cast Sender应用程序教程，当我遇到与Cast CustomReceiver的连接时，我遇到了问题。

我使用以下ConnectionCallbacks实现：

private class ConnectionCallbacks implements GoogleApiClient.ConnectionCallbacks {
    @Override
    public void onConnected(Bundle bundle) {
        Log.i(TAG, "ConnectionCallbacks.onConnected");

        LaunchOptions options = new LaunchOptions.Builder()
                .setRelaunchIfRunning(false)
                .build();
        Cast.CastApi
                .launchApplication(mApiClient, getString(R.string.google_cast_key), options)
                .setResultCallback(new ResultCallback<Cast.ApplicationConnectionResult>() {
                    @Override
                    public void onResult(Cast.ApplicationConnectionResult result) {
                        Status status = result.getStatus();
                        if (status.isSuccess()) {
                            Log.i(TAG, "Success!!! " + result.getApplicationStatus());
                        } else {
                            Log.e(TAG, "No success!!! " + result.getApplicationStatus());
                        }
                    }
                });
    }

    @Override
    public void onConnectionSuspended(int i) {
        Log.i(TAG, "ConnectionCallbacks.onConnectionSuspended: " + i);
    }
}

CustomReceiver代码：

<script>

  window.castReceiverManager = cast.receiver.CastReceiverManager.getInstance();

  var appConfig = new cast.receiver.CastReceiverManager.Config();

  appConfig.statusText = 'Ready to play';

  // 100 minutes for testing, use default 10sec in prod by not setting this value
  appConfig.maxInactivity = 6000;

  window.castReceiverManager.start();
  console.log('Starting Receiver Manager');
  document.getElementById("message").innerHTML='Starting Receiver Manager';
</script>

当我从对话框中选择我的chromecast时，我的自定义接收器应用程序在chromecast和应用程序日志上启动

11-05 22:38:00.470: I/MainActivity(8955): ConnectionCallbacks.onConnected

但是，它从不会调用onResult的{{1}}或onConnectionSuspended以及ResultCallback。我错过了什么？

添加了日志文件

ConnectionFailedListener

Answer 1

我解决了我的问题。它不是发送者，而是接收者。 Google未声明，在使用CustomReceivers时需要注册MessageBus。获取连接到Receiver的Sender的最小ReceiverCode必须是：

  var namespace = 'urn:x-cast:com.denis_loh.desorona'

  window.onload = function() {
    cast.receiver.logger.setLevelValue(0);
    window.castReceiverManager = cast.receiver.CastReceiverManager.getInstance();       

    // Erstelle MessageBus zum Austauschen von Daten
    window.messageBus = window.castReceiverManager.getCastMessageBus(namespace);

    // Lege onMessage-Callback für den MessageBus fest.
    window.messageBus.onMessage = onMessage;

    // Starte den Receiver.
    window.castReceiverManager.start({statusText: "Application is starting"});
    console.log('Receiver Manager started');
  };

  function onMessage(event) {
    window.messageBus.send(event.senderId, event.data);
  }

然而，我还不知道，为什么这毕竟是必需的。

Google Cast Android Sender：未调用ResultCallback

1 个答案: