added overlay popup as feedback for added event

README.md

@@ -41,7 +41,8 @@ A cross plattform project for android and ios to log events offline everywhere a
 - Compile an Apple iOS version.
 - Only show time down to seconds.  Hide microseconds, to save space on view & sync.  
 - On older Android 6 Devices the following error is shown"  OS Error CERTIFICATE_VERIFY_FAILED: certificate has expired".   Fix or require at least Android x? 
-
+- Show version information and build date 
+- Implement switch to select sandbox or productive version. 
 
 ## UI Feedback
 - Colors  
@@ -61,7 +62,7 @@ Text: #57827E
 # Add Event
 - Show \* next to lable for required fields. 
 - NOW button  Equal distance to edge and textfield. Same hight as textfield. 
-- GNSS Switch above 'Label' field or in TopMenuBar?
+- GNSS Switch above 'Label' field or in TopMenuBar?   The current position is suboptimal as sometimes clicked when adding a event is desired.
 - Precision, No-Fix, GNSS-deactivated :  alligned left 
 - Event Type /URN   Item separation and hightlighting chosen type as in configuration.
 - Is a field for end time required here?  
@@ -76,4 +77,5 @@ Text: #57827E
 
 
 # Overview
-- Add Icon to Add, View and Configuration button. Then use uppercase Text. 
\ No newline at end of file
+- Add Icon to Add, View and Configuration button. Then use uppercase Text. 
+

lib/addevent.dart

@@ -169,15 +169,68 @@ class _AddEventPageState extends State<AddEvent>  {
     return false;
   }
 
-  Future<void> _storeCurrentEvent() async {
+  void _showAddSuccessOverlay(BuildContext context) async {
+    // Declaring and Initializing OverlayState
+    // and OverlayEntry objects
+    OverlayState? overlayState = Overlay.of(context);
+    OverlayEntry overlayEntry;
+    overlayEntry = OverlayEntry(builder: (context) {
+
+      // You can return any widget you like
+      // here to be displayed on the Overlay
+      return Positioned(
+        top: MediaQuery.of(context).padding.top,
+        right: MediaQuery.of(context).padding.right,
+        child: Material(
+          color: Colors.transparent,
+          child: Align(
+            alignment: Alignment.topRight,
+            child: Padding(
+              padding: const EdgeInsets.all(3.0),  //a view pixel space to top and right
+              child: Container(
+                decoration: ShapeDecoration(
+                    color: Colors.white,
+                    shape: RoundedRectangleBorder(
+                        borderRadius: BorderRadius.circular(8.0)
+                    )
+                ),
+                child: const Padding(
+                  padding: EdgeInsets.all(10.0),
+                  child: Text(
+                    'Created Event!',
+                    //style: TextStyle(
+                    //    color: Colors.black, fontWeight: FontWeight.bold),
+                  ),
+                ),
+              ),
+            ),
+          ),
+        ),
+      );
+    });
+
+    // Inserting the OverlayEntry into the Overlay
+    overlayState?.insert(overlayEntry);
+
+    // Awaiting for 3 seconds
+    await Future.delayed(const Duration(seconds: 3));
+
+    // Removing the OverlayEntry from the Overlay
+    overlayEntry.remove();
+  }
+
+
+  Future<void> _storeCurrentEvent(BuildContext context) async {
     final EventStoreInstance event = EventStoreInstance();
     final ConfigurationStoreInstance configuration = ConfigurationStoreInstance();
     event.currentEvent.typeId = configuration.getEventIdFromName(event.currentEvent.type);
     event.currentEvent.status = "PENDING";
-    await database.addEvent(event.currentEvent);  //TODO: display feedback after this async function
+    await database.addEvent(event.currentEvent);
     HapticFeedback.vibrate(); //Feedback that adding event succeeded
     _addButtonEnabled = true; //Activate button for add more events
+
     setState(() {});
+    _showAddSuccessOverlay(context);  //Show pop up to indicated adding event succeeded.
 
     //Update timestamp in UI
     var date = DateTime.now().toUtc();
@@ -482,7 +535,7 @@ class _AddEventPageState extends State<AddEvent>  {
                   onPressed: () {
                     if (_validateInput()) {
                       _addButtonEnabled = false;  //Disable button until event is stored
-                      _storeCurrentEvent();
+                      _storeCurrentEvent(context);
 
                     }
                     setState(() {});
@@ -528,4 +581,5 @@ class _AddEventPageState extends State<AddEvent>  {
 }
 
 //TODO: show an allert dialog to notify the user that the event has been added.
-//TODO: The app shall prefill the label with a configurable prefix and optionally a running number. E.g.  prefix: (PS122.3-4_) running number: 1 label = PS122.3-4_1
\ No newline at end of file
+//TODO: The app shall prefill the label with a configurable prefix and optionally a running number. E.g.  prefix: (PS122.3-4_) running number: 1 label = PS122.3-4_1
+