Fix crash

app/src/leanback/java/com/fongmi/android/tv/ui/activity/DetailActivity.java

@@ -142,6 +142,10 @@ public class DetailActivity extends BaseActivity implements CustomKeyDownVod.Lis
         return (Vod.Flag) mFlagAdapter.get(mBinding.flag.getSelectedPosition());
     }
 
+    private Vod.Flag.Episode getEpisode() {
+        return (Vod.Flag.Episode) mEpisodeAdapter.get(getEpisodePosition());
+    }
+
     private int getEpisodePosition() {
         for (int i = 0; i < mEpisodeAdapter.size(); i++) if (((Vod.Flag.Episode) mEpisodeAdapter.get(i)).isActivated()) return i;
         return 0;
@@ -322,12 +326,11 @@ public class DetailActivity extends BaseActivity implements CustomKeyDownVod.Lis
         getDetail();
     }
 
-    private void getPlayer(boolean replay) {
-        Vod.Flag.Episode item = (Vod.Flag.Episode) mEpisodeAdapter.get(getEpisodePosition());
-        mBinding.widget.title.setText(getString(R.string.detail_title, mBinding.name.getText(), item.getName()));
-        mViewModel.playerContent(getKey(), getFlag().getFlag(), item.getUrl());
+    private void getPlayer(Vod.Flag flag, Vod.Flag.Episode episode, boolean replay) {
+        mBinding.widget.title.setText(getString(R.string.detail_title, mBinding.name.getText(), episode.getName()));
+        mViewModel.playerContent(getKey(), flag.getFlag(), episode.getUrl());
         Clock.get().setCallback(null);
-        updateHistory(item, replay);
+        updateHistory(episode, replay);
         showProgress();
     }
 
@@ -535,13 +538,13 @@ public class DetailActivity extends BaseActivity implements CustomKeyDownVod.Lis
     private void onRefresh() {
         if (mFlagAdapter.size() == 0) return;
         if (mEpisodeAdapter.size() == 0) return;
-        getPlayer(false);
+        getPlayer(getFlag(), getEpisode(), false);
     }
 
     private void onReset() {
         if (mFlagAdapter.size() == 0) return;
         if (mEpisodeAdapter.size() == 0) return;
-        getPlayer(isReplay());
+        getPlayer(getFlag(), getEpisode(), isReplay());
     }
 
     private boolean onResetToggle() {