diff --git a/IcarusAndroid/app/src/main/java/framework/everywaretechnologies/it/icarusandroid/MainActivity.java b/IcarusAndroid/app/src/main/java/framework/everywaretechnologies/it/icarusandroid/MainActivity.java
index f5248eaa1280056d8588eaabf482d1426874a049..9bf1795999d8bd8cc09962481578ef5f8c274745 100644
--- a/IcarusAndroid/app/src/main/java/framework/everywaretechnologies/it/icarusandroid/MainActivity.java
+++ b/IcarusAndroid/app/src/main/java/framework/everywaretechnologies/it/icarusandroid/MainActivity.java
@@ -8,6 +8,7 @@ import android.view.View;
 import android.widget.EditText;
 import android.widget.Switch;
 
+import framework.everywaretechnologies.it.icarus.EventTrackResource;
 import framework.everywaretechnologies.it.icarus.Icarus;
 import framework.everywaretechnologies.it.icarus.UserSettingsResource;
 
@@ -27,6 +28,11 @@ public class MainActivity extends AppCompatActivity {
     private Switch intPrefSwitch;
     private Icarus instance;
 
+    private EditText eventNameEditText;
+    private EditText eventCategoryEditText;
+    private EditText eventLabelEditText;
+    private EditText mostProbableActivityEditText;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -50,6 +56,11 @@ public class MainActivity extends AppCompatActivity {
 
         if(lastIntPref==1)intPrefSwitch.setChecked(false);
         else intPrefSwitch.setChecked(true);
+
+        eventNameEditText=findViewById(R.id.editText_eventName);
+        eventCategoryEditText=findViewById(R.id.editText_eventCategory);
+        eventLabelEditText=findViewById(R.id.editText_eventLabel);
+        mostProbableActivityEditText=findViewById(R.id.editText_mostProbableActivity);
     }
 
     //------------------------- UI EVENT -----------------------
@@ -87,4 +98,29 @@ public class MainActivity extends AppCompatActivity {
 
         instance.logUserSettings(userSettingsResource,true);
     }
+
+    public void onBtnEventTrack(View view){
+
+        Log.d(CLASS_NAME,"on btn track event");
+
+        String eventName,eventCategory,eventLabel,mostProbableActivity;
+
+        if(eventNameEditText.getText().length() == 0) eventName="eventoProva";
+        else eventName=eventNameEditText.getText().toString();
+
+        if(eventCategoryEditText.getText().length()==0) eventCategory=Icarus.EventCategories.APPLICATION.toString();
+        else eventCategory=eventCategoryEditText.getText().toString();
+
+        if(eventLabelEditText.getText().length()==0) eventLabel = "labelProva";
+        else eventLabel=eventLabelEditText.getText().toString();
+
+        if(mostProbableActivityEditText.getText().length()==0) mostProbableActivity="activityProva";
+        else mostProbableActivity=mostProbableActivityEditText.getText().toString();
+
+        EventTrackResource eventTrackResource=new EventTrackResource(eventName,eventCategory,eventLabel,90,90,5,
+                mostProbableActivity,90,false);
+
+        instance.logEvent(eventTrackResource,true);
+
+    }
 }
diff --git a/IcarusAndroid/app/src/main/res/layout/activity_main.xml b/IcarusAndroid/app/src/main/res/layout/activity_main.xml
index 873f17b6841d845281107943329f949b18599e98..4224fa3a485cbc500bd8deb7c455d5c04ecc62bc 100644
--- a/IcarusAndroid/app/src/main/res/layout/activity_main.xml
+++ b/IcarusAndroid/app/src/main/res/layout/activity_main.xml
@@ -74,4 +74,44 @@
         android:onClick="onBtnUserPrefChanges"
         android:text="Invia pref changes" />
 
+
+    <EditText
+        android:id="@+id/editText_eventName"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:ems="18"
+        android:hint="event name"
+        android:inputType="textPersonName" />
+
+    <EditText
+        android:id="@+id/editText_eventCategory"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:ems="18"
+        android:hint="event category"
+        android:inputType="textPersonName" />
+
+    <EditText
+        android:id="@+id/editText_eventLabel"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:ems="18"
+        android:hint="event label"
+        android:inputType="textPersonName" />
+
+    <EditText
+        android:id="@+id/editText_mostProbableActivity"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:ems="18"
+        android:hint="most probable activity"
+        android:inputType="textPersonName" />
+
+    <Button
+        android:id="@+id/btn_send_event"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:onClick="onBtnEventTrack"
+        android:text="Invia event track" />
+
 </android.widget.LinearLayout>
\ No newline at end of file
diff --git a/IcarusAndroid/icarus/src/main/java/framework/everywaretechnologies/it/icarus/Icarus.java b/IcarusAndroid/icarus/src/main/java/framework/everywaretechnologies/it/icarus/Icarus.java
index e05cc407af522a5576ca3fa685f6c4d891e34766..10ad48e9099ba0eff76253aae80ef2cb3d30b3f1 100644
--- a/IcarusAndroid/icarus/src/main/java/framework/everywaretechnologies/it/icarus/Icarus.java
+++ b/IcarusAndroid/icarus/src/main/java/framework/everywaretechnologies/it/icarus/Icarus.java
@@ -37,7 +37,7 @@ import java.util.function.Consumer;
 
 public class Icarus {
 
-    enum EventCategories{ //categorie di evento
+    public enum EventCategories{ //categorie di evento
 
         APPLICATION,ACTION,NOTIFICATION;
     }
@@ -121,8 +121,10 @@ public class Icarus {
 
     public void logEvent(EventTrackResource eventTrackResource, boolean debug){
 
-        Log.d(curContext.getString(R.string.icarus_class),"log event");
+        Log.d(curContext.getString(R.string.icarus_class),"log event -> Volley");
 
+        JSONObject eventTrackJSON=eventTrackResource.getEventTrackResourceInJSONFormat();
+        postIcarusHttpRequest(eventTrackJSON,debug);
     }
 
 
diff --git a/IcarusAndroid/icarus/src/main/java/framework/everywaretechnologies/it/icarus/UserSettingsResource.java b/IcarusAndroid/icarus/src/main/java/framework/everywaretechnologies/it/icarus/UserSettingsResource.java
index c87e48ecef30750cea0530a0f27bfd6776a3507d..5746759bb85205ccc81eb488782abb4e9ccba495 100644
--- a/IcarusAndroid/icarus/src/main/java/framework/everywaretechnologies/it/icarus/UserSettingsResource.java
+++ b/IcarusAndroid/icarus/src/main/java/framework/everywaretechnologies/it/icarus/UserSettingsResource.java
@@ -53,7 +53,7 @@ public class UserSettingsResource extends IcarusResource { //classe da non seria
 
             } else { //se è la prima volta che l'utente tocca quella pref
 
-                jsonObject.put("old", null);
+                jsonObject.put("old", null); //TODO: valutare se mettere null come "null" perchè se no nel JSON è come non mettere questo campo, non me lo mette proprio
                 jsonObject.put("new",newValue);
                 prefsOldNew.put(prefName,jsonObject.toString());