Apple Client

[mikeh]

For future reference, this code has got me a response from the raspberry pi. It still needs refinement:


build.gradle:
implementation "org.java-websocket:Java-WebSocket:1.3.0"

Manifest:
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />


Main Activity:

private WebSocketClient mWebSocketClient;

static String TAG = "***WEBSOCKET TEST***";
private static final String SERVER = "ws://10.10.10.1:3000/signalk/v1/stream";
private static final int TIMEOUT = 5000;

private void connectWebsocket() {
   URI uri;
   try {
       uri = new URI(SERVER);
       Log.d(TAG, "URI COMPLETE");
   } catch (URISyntaxException e) {
       Log.d(TAG, "URI SYNTAX EXCEPTION: " + e);
       return;
   }

   mWebSocketClient = new WebSocketClient(uri) {
       @Override
       public void onOpen(ServerHandshake serverHandshake) {
           Log.d(TAG, "SERVER HANDSHAKE");
           mWebSocketClient.send("Hello from " + Build.MANUFACTURER + " " + Build.MODEL);
       }

       @Override
       public void onWebsocketHandshakeSentAsClient(WebSocket conn, ClientHandshake request) throws InvalidDataException {
           super.onWebsocketHandshakeSentAsClient(conn, request);
           Log.d(TAG, "HANDSHAKE SENT AS CLIENT");
       }

       @Override
       public void onWebsocketHandshakeReceivedAsClient(WebSocket conn, ClientHandshake request, ServerHandshake response) throws InvalidDataException {
           super.onWebsocketHandshakeReceivedAsClient(conn, request, response);
           Log.d(TAG, "HANDSHAKE RECEIVED AS CLIENT");
       }


       @Override
       public void onMessage(String s) {
           final String message = s;
           Log.d(TAG, "ON MESSAGE: " + s);
           runOnUiThread(new Runnable() {
               @Override
               public void run() {
                   //TextView textView = (TextView)findViewById(R.id.messages);
                   //textView.setText(textView.getText() + "\n" + message);
               }
           });
       }

       @Override
       public void onMessage(ByteBuffer bytes) {
           super.onMessage(bytes);
           Log.d(TAG, "ON MESSAGE");
       }

       @Override
       public void onClose(int i, String s, boolean b) {
           Log.d(TAG, "Closed " + s);
       }

       @Override
       public void onError(Exception e) {
           Log.d(TAG, "ERROM MESSAGE: " + e.getMessage());
       }
   };
   mWebSocketClient.connect();
}