Some improvements to viewers

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

@@ -15,6 +15,7 @@ import uk.co.ribot.easyadapter.BaseEasyRecyclerAdapter;
 import uk.co.ribot.easyadapter.ItemViewHolder;
 import uk.co.ribot.easyadapter.PositionInfo;
 import uk.co.ribot.easyadapter.annotations.LayoutId;
+import uk.co.ribot.easyadapter.annotations.ViewId;
 
 public class WebtoonAdapter extends BaseEasyRecyclerAdapter<Page> {
 
@@ -40,20 +41,13 @@ public class WebtoonAdapter extends BaseEasyRecyclerAdapter<Page> {
         notifyDataSetChanged();
     }
 
-    public void setPage(int position, Page page) {
-        pages.set(position, page);
-        notifyItemChanged(position);
-    }
-
-
     @LayoutId(R.layout.chapter_image)
     static class ImageViewHolder extends ItemViewHolder<Page> {
 
-        SubsamplingScaleImageView imageView;
+        @ViewId(R.id.page_image_view) SubsamplingScaleImageView imageView;
 
         public ImageViewHolder(View view) {
             super(view);
-            imageView = (SubsamplingScaleImageView) getView();
             imageView.setDoubleTapZoomStyle(SubsamplingScaleImageView.ZOOM_FOCUS_FIXED);
             imageView.setPanLimit(SubsamplingScaleImageView.PAN_LIMIT_INSIDE);
             imageView.setMinimumScaleType(SubsamplingScaleImageView.SCALE_TYPE_CENTER_INSIDE);
@@ -63,8 +57,13 @@ public class WebtoonAdapter extends BaseEasyRecyclerAdapter<Page> {
 
         @Override
         public void onSetValues(Page page, PositionInfo positionInfo) {
-            if (page.getImagePath() != null)
+            if (page.getImagePath() != null) {
+                imageView.setVisibility(View.VISIBLE);
                 imageView.setImage(ImageSource.uri(page.getImagePath()).tilingDisabled());
+            } else {
+                imageView.setVisibility(View.GONE);
+            }
+
         }
     }
 }

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

@@ -2,7 +2,6 @@ package eu.kanade.mangafeed.ui.fragment;
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -21,13 +20,14 @@ import butterknife.ButterKnife;
 import eu.kanade.mangafeed.R;
 import eu.kanade.mangafeed.data.models.Page;
 import eu.kanade.mangafeed.ui.activity.ReaderActivity;
+import eu.kanade.mangafeed.ui.fragment.base.BaseFragment;
 import rx.Observable;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
 import rx.subjects.PublishSubject;
 
-public class ReaderPageFragment extends Fragment {
+public class ReaderPageFragment extends BaseFragment {
 
     @Bind(R.id.page_image_view) SubsamplingScaleImageView imageView;
     @Bind(R.id.progress_container) LinearLayout progressContainer;

app/src/main/java/eu/kanade/mangafeed/ui/viewer/RightToLeftViewer.java

@@ -21,7 +21,7 @@ public class RightToLeftViewer extends ViewPagerViewer {
         ArrayList<Page> inversedPages = new ArrayList<>(pages);
         Collections.reverse(inversedPages);
         adapter.setPages(inversedPages);
-        getViewPager().setCurrentItem(adapter.getCount()-1);
+        getViewPager().setCurrentItem(adapter.getCount()-1, false);
     }
 
     @Override

app/src/main/java/eu/kanade/mangafeed/ui/viewer/VerticalViewer.java

@@ -1,5 +1,6 @@
 package eu.kanade.mangafeed.ui.viewer;
 
+import android.support.v4.view.ViewPager;
 import android.view.MotionEvent;
 import android.widget.FrameLayout;
 
@@ -12,7 +13,6 @@ import eu.kanade.mangafeed.data.models.Page;
 import eu.kanade.mangafeed.ui.activity.ReaderActivity;
 import eu.kanade.mangafeed.ui.adapter.ViewerPagerAdapter;
 import eu.kanade.mangafeed.ui.viewer.base.BaseViewer;
-import eu.kanade.mangafeed.widget.HorizontalViewPager;
 import fr.castorflex.android.verticalviewpager.VerticalViewPager;
 
 public class VerticalViewer extends BaseViewer {
@@ -28,7 +28,7 @@ public class VerticalViewer extends BaseViewer {
         adapter = new ViewerPagerAdapter(activity.getSupportFragmentManager());
         viewPager.setAdapter(adapter);
         viewPager.setOffscreenPageLimit(3);
-        viewPager.setOnPageChangeListener(new HorizontalViewPager.OnPageChangeListener() {
+        viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
             @Override
             public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
 

app/src/main/java/eu/kanade/mangafeed/ui/viewer/WebtoonViewer.java

@@ -21,7 +21,8 @@ public class WebtoonViewer extends BaseViewer {
         super(activity, container);
 
         recycler = new RecyclerView(activity);
-        recycler.setLayoutManager(new LinearLayoutManager(activity));
+        LinearLayoutManager layoutManager = new LinearLayoutManager(activity);
+        recycler.setLayoutManager(layoutManager);
         adapter = new WebtoonAdapter(activity);
         recycler.setAdapter(adapter);
 

app/src/main/java/eu/kanade/mangafeed/ui/viewer/base/ViewPagerViewer.java

@@ -15,8 +15,7 @@ import eu.kanade.mangafeed.widget.HorizontalViewPager;
 
 public abstract class ViewPagerViewer extends BaseViewer {
 
-    @Bind(R.id.view_pager)
-    HorizontalViewPager viewPager;
+    @Bind(R.id.view_pager) HorizontalViewPager viewPager;
     protected ViewerPagerAdapter adapter;
 
     public ViewPagerViewer(ReaderActivity activity, FrameLayout container) {
@@ -69,7 +68,7 @@ public abstract class ViewPagerViewer extends BaseViewer {
 
     @Override
     public void setSelectedPage(int pageNumber) {
-        viewPager.setCurrentItem(getCurrentPageIndex(pageNumber));
+        viewPager.setCurrentItem(getCurrentPageIndex(pageNumber), false);
     }
 
     @Override

app/src/main/res/layout/chapter_image.xml

@@ -1,5 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
-<com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:id="@+id/page_image_view" />
+    android:layout_height="match_parent">
+
+    <com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:id="@+id/page_image_view" />
+
+</LinearLayout>