Unsubscribe subscriptions

app/src/main/java/eu/kanade/mangafeed/presenter/LibraryPresenter.java

@@ -11,6 +11,7 @@ import eu.kanade.mangafeed.data.models.Manga;
 import eu.kanade.mangafeed.ui.activity.MangaDetailActivity;
 import eu.kanade.mangafeed.ui.adapter.LibraryAdapter;
 import eu.kanade.mangafeed.view.LibraryView;
+import rx.Subscription;
 
 import static rx.android.schedulers.AndroidSchedulers.mainThread;
 
@@ -22,6 +23,7 @@ public class LibraryPresenter extends BasePresenter {
     @Inject PreferencesHelper prefs;
 
     LibraryAdapter<Manga> adapter;
+    private Subscription mangaListSubscription;
 
     public LibraryPresenter(LibraryView view) {
         this.view = view;
@@ -45,7 +47,7 @@ public class LibraryPresenter extends BasePresenter {
     }
 
     public void initializeMangas() {
-        db.manga.getWithUnread()
+        mangaListSubscription = db.manga.getWithUnread()
                 .observeOn(mainThread())
                 .subscribe(mangas -> {
                     adapter = new LibraryAdapter<>(view.getActivity(), mangas);
@@ -57,4 +59,10 @@ public class LibraryPresenter extends BasePresenter {
         adapter.getFilter().filter(query);
     }
 
+    public void destroySubscriptions() {
+        if (mangaListSubscription != null) {
+            mangaListSubscription.unsubscribe();
+        }
+    }
+
 }

app/src/main/java/eu/kanade/mangafeed/ui/fragment/LibraryFragment.java

@@ -59,6 +59,13 @@ public class LibraryFragment extends BaseFragment implements LibraryView {
         presenter.initializeMangas();
     }
 
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+
+        presenter.destroySubscriptions();
+    }
+
     @Override
     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
         inflater.inflate(R.menu.library, menu);