Fix loading Screen

lib/main.dart

@@ -176,6 +176,9 @@ class _MyHomePageState extends State<MyHomePage> {
     ]);
 
     _isLoading = false;
+    setState(() {
+      _isLoading;
+    });
   }
 
   // Add markers for origin/dest coords.
@@ -256,7 +259,9 @@ class _MyHomePageState extends State<MyHomePage> {
       if (_data.containsKey('error_code') && _data['error_code'] != 0) {
         switch (_data['error_code']) {
           case 1:
-          _showMessage('The address is outside the solution space. Please enter an address within Berlin-Brandenburg.', context);
+            _showMessage(
+                'The address is outside the solution space. Please enter an address within Berlin-Brandenburg.',
+                context);
             return;
           case 2:
             _showMessage('The address could not be found.', context);
@@ -267,7 +272,7 @@ class _MyHomePageState extends State<MyHomePage> {
       var coordinates = _data['route'];
       int duration = _data['duration'];
       int distance = _data['distance'];
-      int daysAfterToday = _data['day_after_today'];
+      int daysAfterToday = _data['days_after_today'];
 
       // Format duration, distance and day
       _totalDuration = getTotalDuration(duration);