-Prevent for multiple scan (added stop in method onPause)

-prevent for adding group when nothing problem list from service

app/src/main/java/com/fusi24/entryPermitScanner/ui/ScanActivity.java

@@ -115,6 +115,7 @@ public class ScanActivity extends LFScanProcessing implements GoogleApiClient.Co
     @Override
     protected void onResume() {
         super.onResume();
+        statusScanner();
         //Now lets connect to the API
         mGoogleApiClient.connect();
 
@@ -125,6 +126,8 @@ public class ScanActivity extends LFScanProcessing implements GoogleApiClient.Co
     @Override
     protected void onPause() {
         super.onPause();
+        // Stop scanner when scan activity pause
+        onStop();
         //Disconnect from API onPause()
         if (mGoogleApiClient.isConnected()) {
             LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);

app/src/main/java/com/fusi24/entryPermitScanner/ui/scanresult/ScanResultActivity.java

@@ -204,13 +204,15 @@ public class ScanResultActivity extends BaseActivity implements ScanResultView {
 
         // Search if all data problem document not have any group
         if (!dataResultRfid.getPassed()) {
-            if (Stream.of(problemsList).allMatch(v -> v.getDataDocumentType().getGroup() == null)) {
-                groupList.add(new DataGroup(1, "No Group", "No Group Document", true));
-            } else {
-                groupList = Stream.of(problemsList)
-                        .map(v -> v.getDataDocumentType().getGroup())
-                        .distinctBy(DataGroup::getId)
-                        .collect(Collectors.toList());
+            if (problemsList.size() != 0){
+                if (Stream.of(problemsList).allMatch(v -> v.getDataDocumentType().getGroup() == null)) {
+                    groupList.add(new DataGroup(1, "No Group", "No Group Document", true));
+                } else {
+                    groupList = Stream.of(problemsList)
+                            .map(v -> v.getDataDocumentType().getGroup())
+                            .distinctBy(DataGroup::getId)
+                            .collect(Collectors.toList());
+                }
             }
         }