Don't restart library subscription

app/src/main/java/eu/kanade/mangafeed/data/models/Manga.java

@@ -1,7 +1,5 @@
 package eu.kanade.mangafeed.data.models;
 
-import android.support.annotation.Nullable;
-
 import com.pushtorefresh.storio.sqlite.annotations.StorIOSQLiteColumn;
 import com.pushtorefresh.storio.sqlite.annotations.StorIOSQLiteType;
 

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

@@ -7,13 +7,12 @@ import javax.inject.Inject;
 
 import eu.kanade.mangafeed.data.helpers.DatabaseHelper;
 import eu.kanade.mangafeed.data.helpers.PreferencesHelper;
-import eu.kanade.mangafeed.data.models.Manga;
+import eu.kanade.mangafeed.ui.adapter.LibraryAdapter;
 import eu.kanade.mangafeed.ui.fragment.LibraryFragment;
 import rx.Observable;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
-import uk.co.ribot.easyadapter.EasyAdapter;
 
 public class LibraryPresenter extends BasePresenter<LibraryFragment> {
 
@@ -36,31 +35,26 @@ public class LibraryPresenter extends BasePresenter<LibraryFragment> {
 
     public void getFavoriteMangas() {
         if (mFavoriteMangasSubscription != null)
-            remove(mFavoriteMangasSubscription);
+            return;
 
-        mFavoriteMangasSubscription = db.getMangasWithUnread()
+        add(mFavoriteMangasSubscription = db.getMangasWithUnread()
                 .subscribeOn(Schedulers.io())
                 .observeOn(AndroidSchedulers.mainThread())
                 .compose(deliverLatestCache())
-                .subscribe(this.split((view, mangas) -> {
-                    view.getAdapter().setNewItems(mangas);
-                }));
-
-        add(mFavoriteMangasSubscription);
+                .subscribe(this.split(LibraryFragment::onNextMangas)));
     }
 
-    public void onDelete(SparseBooleanArray checkedItems, EasyAdapter<Manga> adapter) {
-        remove(mDeleteMangaSubscription);
+    public void onDelete(SparseBooleanArray checkedItems, LibraryAdapter adapter) {
+        if (mDeleteMangaSubscription != null)
+            remove(mDeleteMangaSubscription);
 
-        mDeleteMangaSubscription = Observable.range(0, checkedItems.size())
+        add(mDeleteMangaSubscription = Observable.range(0, checkedItems.size())
                 .observeOn(Schedulers.io())
                 .map(checkedItems::keyAt)
                 .map(adapter::getItem)
                 .toList()
                 .flatMap(db::deleteMangas)
-                .subscribe();
-
-        add(mDeleteMangaSubscription);
+                .subscribe());
     }
 
 }

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

@@ -8,7 +8,6 @@ import eu.kanade.mangafeed.ui.fragment.MangaInfoFragment;
 import rx.Observable;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
 
 public class MangaInfoPresenter extends BasePresenter<MangaInfoFragment> {
 

app/src/main/java/eu/kanade/mangafeed/ui/adapter/LibraryAdapter.java

@@ -10,7 +10,7 @@ import eu.kanade.mangafeed.data.models.Manga;
 import rx.Observable;
 import uk.co.ribot.easyadapter.EasyAdapter;
 
-public class LibraryAdapter<T> extends EasyAdapter<T> implements Filterable {
+public class LibraryAdapter extends EasyAdapter<Manga> implements Filterable {
 
     List<Manga> mangas;
     Filter filter;
@@ -20,9 +20,9 @@ public class LibraryAdapter<T> extends EasyAdapter<T> implements Filterable {
         filter = new LibraryFilter();
     }
 
-    public void setNewItems(List<T> list) {
+    public void setNewItems(List<Manga> list) {
         super.setItems(list);
-        mangas = (List<Manga>)list;
+        mangas = list;
     }
 
     @Override
@@ -57,7 +57,7 @@ public class LibraryAdapter<T> extends EasyAdapter<T> implements Filterable {
 
         @Override
         public void publishResults(CharSequence constraint, FilterResults results) {
-            setItems((List<T>) results.values);
+            setItems((List<Manga >) results.values);
         }
     }
 

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

@@ -12,6 +12,8 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.GridView;
 
+import java.util.List;
+
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnItemClick;
@@ -28,7 +30,7 @@ public class LibraryFragment extends BaseFragment<LibraryPresenter> {
 
     @Bind(R.id.gridView) GridView grid;
     private MainActivity activity;
-    private LibraryAdapter<Manga> adapter;
+    private LibraryAdapter adapter;
 
     public static LibraryFragment newInstance() {
         LibraryFragment fragment = new LibraryFragment();
@@ -82,12 +84,12 @@ public class LibraryFragment extends BaseFragment<LibraryPresenter> {
     }
 
     private void createAdapter() {
-        adapter = new LibraryAdapter<>(getActivity());
+        adapter = new LibraryAdapter(getActivity());
         grid.setAdapter(adapter);
     }
 
-    public LibraryAdapter<Manga> getAdapter() {
-        return adapter;
+    public void onNextMangas(List<Manga> mangas) {
+        adapter.setNewItems(mangas);
     }
 
     @OnItemClick(R.id.gridView)