TeamNewPipe#6522: Fix null pointer exception when displaying SearchF…

…ragment

It seems due to TeamNewPipe#6394 updating the FragmentX library there was a
change to the order of lifecycle calls, as such onResume() was no longer
before onCreateOptionsMenu() creating a null pointer exception when
using service in onCreateOptionsMenu() as it is only set in onResume().

By moving the initialization of service to onStart() which still happens
before onCreateOptionsMenu() this crash can be avoided. This commit also
adds a check for a null service to prevent future crashes for similar
issues.

app/src/main/java/org/schabi/newpipe/fragments/list/search/SearchFragment.java

@@ -227,6 +227,25 @@ public void onViewCreated(@NonNull final View rootView, final Bundle savedInstan
         initSearchListeners();
     }
 
+    private void updateService() {
+        try {
+            service = NewPipe.getService(serviceId);
+        } catch (final Exception e) {
+            ErrorActivity.reportUiErrorInSnackbar(this,
+                    "Getting service for id " + serviceId, e);
+        }
+    }
+
+    @Override
+    public void onStart() {
+        if (DEBUG) {
+            Log.d(TAG, "onStart() called");
+        }
+        super.onStart();
+
+        updateService();
+    }
+
     @Override
     public void onPause() {
         super.onPause();
@@ -250,13 +269,6 @@ public void onResume() {
         }
         super.onResume();
 
-        try {
-            service = NewPipe.getService(serviceId);
-        } catch (final Exception e) {
-            ErrorActivity.reportUiErrorInSnackbar(this,
-                    "Getting service for id " + serviceId, e);
-        }
-
         if (suggestionDisposable == null || suggestionDisposable.isDisposed()) {
             initSuggestionObserver();
         }
@@ -428,6 +440,12 @@ public void onCreateOptionsMenu(@NonNull final Menu menu,
         int itemId = 0;
         boolean isFirstItem = true;
         final Context c = getContext();
+
+        if (service == null) {
+            Log.w(TAG, "onCreateOptionsMenu() called with null service");
+            updateService();
+        }
+
         for (final String filter : service.getSearchQHFactory().getAvailableContentFilter()) {
             if (filter.equals(YoutubeSearchQueryHandlerFactory.MUSIC_SONGS)) {
                 final MenuItem musicItem = menu.add(2,