toast in gas sensor corrected

Author: Kunal

app/src/main/java/io/pslab/fragment/GasSensorDataFragment.java

@@ -83,6 +83,7 @@ public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         startTime = System.currentTimeMillis();
         gasSensorActivity = (GasSensorActivity) getActivity();
+
     }
 
     @Nullable
@@ -91,6 +92,9 @@ public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup c
         rootView = inflater.inflate(R.layout.fragment_gas_sensor, container, false);
         unbinder = ButterKnife.bind(this, rootView);
         scienceLab = ScienceLabCommon.scienceLab;
+        if (!scienceLab.isConnected()){
+            Toast.makeText(getContext(), R.string.not_connected, Toast.LENGTH_SHORT).show();
+        }
         entries = new ArrayList<>();
         setupInstruments();
         return rootView;
@@ -366,9 +370,7 @@ private void visualizeData() {
                 mChart.moveViewToX(data.getEntryCount());
                 mChart.invalidate();
             }
-        } else {
-            Toast.makeText(getContext(), R.string.not_connected, Toast.LENGTH_SHORT).show();
-        }
+        } 
     }
 
     private void setupInstruments() {