fix enum

IcarusAndroid/app/src/main/java/framework/everywaretechnologies/it/icarusandroid/MainActivity.java

@@ -108,10 +108,10 @@ public class MainActivity extends AppCompatActivity {
         if(eventNameEditText.getText().length() == 0) eventName="eventoProva";
         else eventName=eventNameEditText.getText().toString();
 
-        if(eventCategoryEditText.getText().length()==0) eventCategory=Icarus.EventCategories.APPLICATION.toString();
+        if(eventCategoryEditText.getText().length()==0) eventCategory=EventTrackResource.EventCategories.APPLICATION.name().toLowerCase();
         else eventCategory=eventCategoryEditText.getText().toString();
 
-        if(eventLabelEditText.getText().length()==0) eventLabel = "labelProva";
+        if(eventLabelEditText.getText().length()==0) eventLabel = EventTrackResource.EventLabel.FOREGROUND.name().toLowerCase();
         else eventLabel=eventLabelEditText.getText().toString();
 
         if(mostProbableActivityEditText.getText().length()==0) mostProbableActivity="activityProva";

IcarusAndroid/icarus/src/main/java/framework/everywaretechnologies/it/icarus/EventTrackResource.java

@@ -5,6 +5,16 @@ import org.json.JSONObject;
 
 public class EventTrackResource extends IcarusResource {
 
+    public enum EventCategories{ //categorie di evento
+
+        APPLICATION,ACTION,NOTIFICATION;
+    }
+
+    public enum EventLabel{
+
+        FOREGROUND,BACKGROUND;
+    }
+
     private String eventName;
     private String eventCategory;
     private String eventLabel;

IcarusAndroid/icarus/src/main/java/framework/everywaretechnologies/it/icarus/Icarus.java

@@ -37,12 +37,6 @@ import java.util.function.Consumer;
 
 public class Icarus {
 
-    public enum EventCategories{ //categorie di evento
-
-        APPLICATION,ACTION,NOTIFICATION;
-    }
-
-
 
     private final static String ICARUS_URL="https://webdev.ewlab.di.unimi.it/icarus/str";