Error handling

MobileApp/.idea/misc.xml

       </map>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" project-jdk-name="11" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="11" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

MobileApp/app/src/main/java/com/example/lfrmobileapp/MainActivity.java

     private ActivityMainBinding binding;
     private ExtendedSocket socket;
     private DataTransferAsyncTask dataTransferAsyncTask;
-    Boolean connected = false;
+    public Boolean connected = false;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {

MobileApp/app/src/main/java/com/example/lfrmobileapp/ui/dashboard/DashboardFragment.java

 
 import com.example.lfrmobileapp.Communication;
 import com.example.lfrmobileapp.DataTransferAsyncTask;
+import com.example.lfrmobileapp.MainActivity;
 import com.example.lfrmobileapp.R;
 import com.example.lfrmobileapp.databinding.FragmentAutomatikBinding;
 
 
 import kotlin.collections.UArraySortingKt;
 
+// Autonomous Mode
 public class DashboardFragment extends Fragment {
     Communication com = new Communication();
     private FragmentAutomatikBinding binding;
 
+    MainActivity mainActivity;
+
     //Keys for Shared Preferences
     String listKey = "listkey";
 
-    DataTransferAsyncTask dataTransferAsyncTask;
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        mainActivity = (MainActivity) context;
+    }
 
     public View onCreateView(@NonNull LayoutInflater inflater,
                              ViewGroup container, Bundle savedInstanceState) {
 
             @Override
             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
-                if(isChecked){
-                    dataTransferAsyncTask.writeTelegram(com.telegram(true, autoList));
-                }else{
-                    dataTransferAsyncTask.writeTelegram(com.telegram(false, autoList));
+                if (mainActivity.connected){
+                    if(isChecked){
+                        mainActivity.sendTelegram(com.telegram(true, autoList));
+                    }else{
+                        mainActivity.sendTelegram(com.telegram(false, autoList));
+                    }
                 }
             }
         });
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        dataTransferAsyncTask.cancel(false);
         binding = null;
     }
 

MobileApp/app/src/main/java/com/example/lfrmobileapp/ui/home/HomeFragment.java

 import android.content.Context;
 import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.View;
             @SuppressLint("ClickableViewAccessibility")
             @Override
                 public boolean onTouch(View v, MotionEvent event) {
-
-                    if(event.getAction() == MotionEvent.ACTION_UP){
+                boolean send = false;
+                if (System.currentTimeMillis() - lastOnMoveCall > 250){
+                    send = true;
+                    lastOnMoveCall = System.currentTimeMillis();
+                }
+                if (send && mainActivity.connected) {
+                    if (event.getAction() == MotionEvent.ACTION_UP) {
                         binding.rotateLeft.performClick();
                         mainActivity.sendTelegram(com.telegram(new int[]{0, 0, 0, 0}, 0));
                         return true;
-                    }else{
+                    } else {
                         mainActivity.sendTelegram(com.telegram(new int[]{-1, 1, -1, 1}, 100));
                     }
-                    return false;
                 }
-            });
+                return false;
+            }
+        });
 
         binding.rotateRight.setOnTouchListener(new View.OnTouchListener(){
             @SuppressLint("ClickableViewAccessibility")
             @Override
             public boolean onTouch(View v, MotionEvent event) {
-
-                if(event.getAction() == MotionEvent.ACTION_UP){
-                    binding.rotateRight.performClick();
-                    mainActivity.sendTelegram(com.telegram(new int[]{0, 0, 0, 0}, 0));
-                    return true;
-                }else{
-                    mainActivity.sendTelegram(com.telegram(new int[]{1, -1, 1, -1}, 100));
+                boolean send = false;
+                if (System.currentTimeMillis() - lastOnMoveCall > 250){
+                    send = true;
+                    lastOnMoveCall = System.currentTimeMillis();
+                }
+                if (send && mainActivity.connected){
+                    if(event.getAction() == MotionEvent.ACTION_UP){
+                        binding.rotateRight.performClick();
+                        mainActivity.sendTelegram(com.telegram(new int[]{0, 0, 0, 0}, 0));
+                        return true;
+                    }else{
+                        mainActivity.sendTelegram(com.telegram(new int[]{1, -1, 1, -1}, 100));
+                    }
                 }
                 return false;
             }
                     joystick.setBackgroundResource(R.mipmap.blank);
                     telegram = com.telegram(new int[]{0, 0, 0, 0}, strength);
                 }
-                if (send)
+                if (send && mainActivity.connected)
                 {
                     mainActivity.sendTelegram(telegram);
+                    // Log.v("TAG", telegram + "\n");
                 }
             }
         });

MobileApp/app/src/main/java/com/example/lfrmobileapp/ui/notifications/NotificationsFragment.java

     String connectionFailed = "Verbindung fehlgeschlagen.";
     String connectionSuccessful = "Verbindung erfolgreich.";
 
-    String ipAddress = "192.168.0.1";
-    int port = 8000;
+    String ipAddress = "192.168.4.1";
+    int port = 8080;
 
     int duration = Toast.LENGTH_LONG;
     DataTransferAsyncTask dataTransferAsyncTask;
         final Button button = binding.connect;
         button.setOnClickListener(new View.OnClickListener() {
             public void onClick(View v) {
-                ipAddress = String.valueOf(binding.ipAdress.getText());
-                port = Integer.parseInt(String.valueOf(binding.port.getText()));
+                try {
+                    ipAddress = String.valueOf(binding.ipAdress.getText());
+                    port = Integer.parseInt(String.valueOf(binding.port.getText()));
+                } catch (Exception e){
+                    System.err.println("Parse Exception: " + e.getMessage());
+                }
 
                 connected = mainActivity.connectToWifi(ipAddress, port);