Stabilize the app when permissions have been revoked. Moved the start service to only after the permission check is complete.

In the stop service, only stop the service if notifications are enabled, due to a weird scenario where the service might start and immediately end due to lack of notifications, resulting in an app crash.
How did we end up like this.
Issue #1038
Issue #1153

Author: mendhak

gpslogger/src/main/AndroidManifest.xml

@@ -27,6 +27,8 @@
     <!-- allow this to run as a foreground service -->
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
 
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+
 
     <application
         android:allowBackup="true"

gpslogger/src/main/java/com/mendhak/gpslogger/GpsMainActivity.java

@@ -65,6 +65,7 @@
 import androidx.appcompat.view.menu.ActionMenuItemView;
 import androidx.appcompat.widget.ActionMenuView;
 import androidx.appcompat.widget.Toolbar;
+import androidx.core.app.NotificationManagerCompat;
 import androidx.core.content.ContextCompat;
 import androidx.core.content.FileProvider;
 import androidx.drawerlayout.widget.DrawerLayout;
@@ -158,9 +159,7 @@ protected void onCreate(Bundle savedInstanceState) {
         setUpNavigationDrawer(savedInstanceState);
 
         loadDefaultFragmentView();
-        startAndBindService();
-        registerEventBus();
-        registerConscryptProvider();
+
 
         if(!Systems.hasUserGrantedAllNecessaryPermissions(this)){
             LOG.debug("Permission check - missing permissions");
@@ -170,6 +169,10 @@ protected void onCreate(Bundle savedInstanceState) {
         else {
             LOG.debug("Permission check - OK");
 
+            startAndBindService();
+            registerEventBus();
+            registerConscryptProvider();
+
             if(preferenceHelper.shouldStartLoggingOnAppLaunch()){
                 LOG.debug("Start logging on app launch");
                 EventBus.getDefault().postSticky(new CommandEvents.RequestStartStop(true));
@@ -269,6 +272,9 @@ public boolean onResult(@NonNull String dialogTag, int which, @NonNull Bundle ex
                     permissions.add(Manifest.permission.ACCESS_FINE_LOCATION);
                     permissions.add(Manifest.permission.READ_EXTERNAL_STORAGE);
                     permissions.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                        permissions.add(Manifest.permission.POST_NOTIFICATIONS);
+                    }
 
                     if (Build.VERSION.SDK_INT == Build.VERSION_CODES.Q) {
                         // Only on Android 10 (Q), the permission dialog can include an 'Allow all the time'
@@ -1501,6 +1507,16 @@ private void startAndBindService() {
      * Stops the service if it isn't logging. Also unbinds.
      */
     private void stopAndUnbindServiceIfRequired() {
+        if(!NotificationManagerCompat.from(this).areNotificationsEnabled()) {
+            // Alright. Why is this needed.
+            // If the notification permission has been revoked or not granted for whatever reason.
+            // When the application opens, the service starts, then stops right away.
+            // Android requires a notification to be shown for a foreground service within 5 seconds.
+            // So the application crashes and comes back repeatedly. Very weird.
+            // The answer - if notifications are disabled, don't unbind the service. It will stop on its own.
+            // Might be related: https://stackoverflow.com/questions/73067939/start-foreground-service-after-notification-permission-was-disabled-causes-crash
+            return;
+        }
         if (session.isBoundToService()) {
 
             try {
@@ -1514,6 +1530,10 @@ private void stopAndUnbindServiceIfRequired() {
         if (!session.isStarted()) {
             LOG.debug("Stopping the service");
             try {
+                // Stop service crashes if the intent is null. lol
+                if(serviceIntent == null){
+                    serviceIntent = new Intent(this, GpsLoggingService.class);
+                }
                 stopService(serviceIntent);
             } catch (Exception e) {
                 LOG.error("Could not stop the service", e);