使用web套接字时Android不在主线程中

我有一个应用程序，我必须使用websockets实时更新谷歌地图上的标记。我成功地完成了与web套接字的连接，并且在响应中得到了json字符串。我解析到JSONObject，当我调试时，我看到json中的所有数据都来了，但问题是当我必须添加标记时。错误是：

e: "com.google.maps.api.android.lib6.common.apiexception.c: Not on the main thread"

连接到websocket后，我执行了以下代码以获取数据：

private OkHttpClient client;
    private EchoWebSocketListener webSocketListener;
    private static final int NORMAL_CLOSURE_STATUS = 1000;

    public void startWebSocketConnection() {
        client = new OkHttpClient.Builder()
                .readTimeout(3000, TimeUnit.MILLISECONDS)
                .build();

        webSocketListener = new EchoWebSocketListener(new EchoWebSocketListener.SocketClientListener() {

            @Override
            public void onConnected(WebSocket webSocket, okhttp3.Response response) {
                Log.d("Connected :", response.toString());
            }

            @Override
            public void getMessage(String message) {
                Log.d("Received", message);
                List<ClusterItem> clusterItems = new ArrayList<>();
                try {
                    JSONObject jsonObject = (JSONObject) new JSONTokener(message).nextValue();
                    //String vehicle_id = jsonObject.getString("id");
                    String vehicle_class = jsonObject.getString("vehicle_class");
                    String kemlercode = jsonObject.getString("kemlercode");
                    String vehicle_speed = jsonObject.getString("vehicle_speed");

                    JSONObject newJsonObject = jsonObject.getJSONObject("portalMetadata");
                    String portal_id = newJsonObject.getString("id");
                    String portalName = newJsonObject.getString("portalName");
                    String location = newJsonObject.getString("location");
                    String[] coordinates = location.split(",");
                    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
                        double[] locations = Stream.of(coordinates).mapToDouble(Double::parseDouble).toArray();
                        double latitude = locations[0];
                        double longitude = locations[1];
                        MarkerOptions markerOptions = new MarkerOptions();
                        LatLng latLng = new LatLng(latitude, longitude);
                        markerOptions.position(latLng);

                        Marker marker = mGoogleMap.addMarker(markerOptions);
                        cameraConfigurations(latLng);

                        ClusterItem loc = new ClusterItem(latitude, longitude, vehicle_class, kemlercode);

                        marker.remove();
                        marker.showInfoWindow();
                        clusterItems.add(loc);
                        mClusterManager.addItem(loc);

                        mGoogleMap.setOnMarkerClickListener(mClusterManager);
                        mGoogleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng, 5.0f));
                        markers.add(marker);

                        setClusterManager(mClusterManager, clusterItems);
                        mGoogleMap.setOnCameraIdleListener(mClusterManager);
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }

            @Override
            public void onFailure(WebSocket webSocket, String reason) {
                Log.d("Failure :", reason);
            }

            @Override
            public void closingOrClosed(boolean isClosed, WebSocket webSocket, String reason, int code) {
                Log.d("ClosingOrClosed :", isClosed ? "Closed" : "closing");
            }
        });

        Request request = new Request.Builder().url(SOCKET_URL).build();
        client.newWebSocket(request, webSocketListener);
    }

我正在使用okHttp库执行与WebSocket的通信。

---

我做错了什么。有人对我需要改进的地方有什么建议吗。任何帮助都将不胜感激。提前感谢。

Android不允许在主UI线程中执行网络操作。用工作线程代替。那么，@RemyLebeau你能提供更多的细节吗？你还想让我说什么？由于Android 3，您无法在主UI线程上运行网络代码。时期因此，您需要用辅助线程替换

runOnUiThread（）

。我不打算讨论如何编写多线程代码的语义，这对于一个评论来说太宽泛了

 runOnUiThread(this::startWebSocketConnection);