minor fix

src/main/java/it/near/sdk/geopolis/beacons/AltBeaconMonitor.java

@@ -341,7 +341,7 @@ public void didDetermineStateForRegion(int i, Region region) {
                 if (region.getId2() != null && region.getId3() == null){
                     startRangingRegion(region);
                 }
-                if (AppLifecycleMonitor.isApplicationInForeground()){
+                if (AppVisibilityDetector.sIsForeground){
                     // switch to ranging mode only if we are in foreground
                     startRanging();
                 }

src/main/java/it/near/sdk/reactions/feedback/FeedbackEvent.java

@@ -1,7 +1,5 @@
 package it.near.sdk.reactions.feedback;
 
-import android.content.Context;
-
 import org.json.JSONException;
 
 import java.util.HashMap;
@@ -10,7 +8,6 @@
 import it.near.sdk.reactions.Event;
 import it.near.sdk.utils.NearJsonAPIUtils;
 
-
 /**
  * Created by cattaneostefano on 11/10/2016.
  */
@@ -23,10 +20,10 @@ public class FeedbackEvent extends Event {
     private static final String PROFILE_ID = "profile_id";
     private static final String RES_TYPE = "answers";
 
-    String feedbackId;
-    int rating = -1;
-    String comment;
-    String recipeId;
+    private String feedbackId;
+    private int rating = -1;
+    private String comment;
+    private String recipeId;
 
     public FeedbackEvent(String feedbackId, int rating, String comment, String recipeId) {
         this.feedbackId = feedbackId;
@@ -35,7 +32,7 @@ public FeedbackEvent(String feedbackId, int rating, String comment, String recip
         this.recipeId = recipeId;
     }
 
-    public FeedbackEvent(Feedback feedback, int rating, String comment){
+    public FeedbackEvent(Feedback feedback, int rating, String comment) {
         this.feedbackId = feedback.getId();
         this.rating = rating;
         this.comment = comment;

src/main/java/it/near/sdk/utils/AppVisibilityDetector.java

@@ -38,7 +38,7 @@ public final class AppVisibilityDetector {
     private static boolean DEBUG = false;
     private static final String TAG = "AppVisibilityDetector";
     private static AppVisibilityCallback sAppVisibilityCallback;
-    private static boolean sIsForeground = false;
+    public static boolean sIsForeground = false;
     private static Handler sHandler;
     private static final int MSG_GOTO_FOREGROUND = 1;
     private static final int MSG_GOTO_BACKGROUND = 2;