[mobile] dynamic itemCount for episode dialog

app/src/mobile/java/com/fongmi/android/tv/ui/custom/dialog/EpisodeDialog.java

@@ -13,7 +13,6 @@ import androidx.viewpager2.adapter.FragmentStateAdapter;
 import com.fongmi.android.tv.bean.Vod;
 import com.fongmi.android.tv.databinding.DialogEpisodeBinding;
 import com.fongmi.android.tv.ui.fragment.EpisodeFragment;
-import com.google.android.material.bottomsheet.BottomSheetDialog;
 import com.google.android.material.tabs.TabLayoutMediator;
 
 import java.util.ArrayList;
@@ -25,6 +24,8 @@ public class EpisodeDialog extends BaseDialog {
     private DialogEpisodeBinding binding;
     private final List<String> titles;
     private boolean reverse;
+    private int spanCount;
+    private int itemCount;
 
     public static EpisodeDialog create() {
         return new EpisodeDialog();
@@ -32,6 +33,7 @@ public class EpisodeDialog extends BaseDialog {
 
     public EpisodeDialog() {
         this.titles = new ArrayList<>();
+        this.spanCount = 5;
     }
 
     public EpisodeDialog reverse(boolean reverse) {
@@ -41,7 +43,6 @@ public class EpisodeDialog extends BaseDialog {
 
     public EpisodeDialog episodes(List<Vod.Flag.Episode> episodes) {
         this.episodes = episodes;
-        setTitles();
         return this;
     }
 
@@ -52,29 +53,42 @@ public class EpisodeDialog extends BaseDialog {
 
     @Override
     protected void initView() {
-        binding.pager.setAdapter(new PageAdapter(getActivity()));
-        new TabLayoutMediator(binding.tabs, binding.pager, (tab, position) -> tab.setText(titles.get(position))).attach();
-        setCurrentPage();
+        setSpanCount();
+        setTitles();
+        setPager();
+    }
+
+    private void setSpanCount() {
+        int total = 0;
+        for (Vod.Flag.Episode item : episodes) total += item.getName().length();
+        int offset = total / episodes.size();
+        if (offset >= 20) spanCount = 1;
+        else if (offset >= 10) spanCount = 2;
+        else if (offset >= 6) spanCount = 3;
+        else if (offset >= 3) spanCount = 4;
+        itemCount = spanCount * 10;
     }
 
     private void setTitles() {
-        if (reverse) for (int i = episodes.size(); i > 0; i -= 50) titles.add(i + " - " + Math.max(i - 49, 1));
-        else for (int i = 0; i < episodes.size(); i += 50) titles.add((i + 1) + " - " + Math.min(i + 50, episodes.size()));
+        if (reverse) for (int i = episodes.size(); i > 0; i -= itemCount) titles.add(i + " - " + Math.max(i - itemCount - 1, 1));
+        else for (int i = 0; i < episodes.size(); i += itemCount) titles.add((i + 1) + " - " + Math.min(i + itemCount, episodes.size()));
+    }
+
+    private void setPager() {
+        binding.pager.setAdapter(new PageAdapter(getActivity()));
+        new TabLayoutMediator(binding.tabs, binding.pager, (tab, position) -> tab.setText(titles.get(position))).attach();
+        setCurrentPage();
     }
 
     private void setCurrentPage() {
         for (int i = 0; i < episodes.size(); i++) {
             if (episodes.get(i).isActivated()) {
-                binding.pager.setCurrentItem(i / 50);
+                binding.pager.setCurrentItem(i / itemCount);
                 break;
             }
         }
     }
 
-    @Override
-    protected void setBehavior(BottomSheetDialog dialog) {
-    }
-
     class PageAdapter extends FragmentStateAdapter {
 
         public PageAdapter(@NonNull FragmentActivity activity) {
@@ -84,7 +98,7 @@ public class EpisodeDialog extends BaseDialog {
         @NonNull
         @Override
         public Fragment createFragment(int position) {
-            return EpisodeFragment.newInstance(episodes.subList(position * 50, Math.min(position * 50 + 50, episodes.size())));
+            return EpisodeFragment.newInstance(spanCount, episodes.subList(position * itemCount, Math.min(position * itemCount + itemCount, episodes.size())));
         }
 
         @Override

app/src/mobile/java/com/fongmi/android/tv/ui/fragment/EpisodeFragment.java

@@ -26,12 +26,17 @@ public class EpisodeFragment extends BaseFragment implements EpisodeAdapter.OnCl
     private SiteViewModel mViewModel;
     private EpisodeAdapter mAdapter;
 
+    private int getSpanCount() {
+        return getArguments().getInt("spanCount");
+    }
+
     private String getJson() {
         return getArguments().getString("json");
     }
 
-    public static EpisodeFragment newInstance(List<Vod.Flag.Episode> items) {
+    public static EpisodeFragment newInstance(int spanCount, List<Vod.Flag.Episode> items) {
         Bundle args = new Bundle();
+        args.putInt("spanCount", spanCount);
         args.putString("json", new Gson().toJson(items));
         EpisodeFragment fragment = new EpisodeFragment();
         fragment.setArguments(args);
@@ -62,21 +67,10 @@ public class EpisodeFragment extends BaseFragment implements EpisodeAdapter.OnCl
 
     private void setEpisode() {
         mAdapter.addAll(Vod.Flag.Episode.arrayFrom(getJson()));
-        mBinding.recycler.setLayoutManager(new GridLayoutManager(getContext(), getSpan(mAdapter.getItems())));
+        mBinding.recycler.setLayoutManager(new GridLayoutManager(getContext(), getSpanCount()));
         mBinding.recycler.scrollToPosition(mAdapter.getPosition());
     }
 
-    private int getSpan(List<Vod.Flag.Episode> items) {
-        int total = 0;
-        for (Vod.Flag.Episode item : items) total += item.getName().length();
-        int offset = total / items.size();
-        if (offset >= 20) return 1;
-        if (offset >= 10) return 2;
-        if (offset >= 6) return 3;
-        if (offset >= 3) return 4;
-        return 5;
-    }
-
     @Override
     public void onItemClick(Vod.Flag.Episode item) {
         mViewModel.setEpisode(item);

app/src/mobile/res/drawable/ic_handle.xml

@@ -1,12 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="3dp"
-    android:viewportWidth="24"
-    android:viewportHeight="3">
-
-    <path
-        android:fillColor="@color/grey_300"
-        android:pathData="M 1.5 0 L 22.5 0 Q 24 0 24 1.5 L 24 1.5 Q 24 3 22.5 3 L 1.5 3 Q 0 3 0 1.5 L 0 1.5 Q 0 0 1.5 0 Z"
-        android:strokeWidth="1" />
-
-</vector>

app/src/mobile/res/layout/dialog_episode.xml

@@ -5,18 +5,11 @@
     android:layout_height="wrap_content"
     android:orientation="vertical">
 
-    <ImageView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center_horizontal"
-        android:layout_marginTop="8dp"
-        android:src="@drawable/ic_handle" />
-
     <TextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginStart="16dp"
-        android:layout_marginTop="8dp"
+        android:layout_marginTop="16dp"
         android:layout_marginEnd="16dp"
         android:text="@string/detail_episode"
         android:textColor="@color/black"