Fix bug

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

@@ -390,7 +390,7 @@ public class CastActivity extends BaseActivity implements CustomKeyDownVod.Liste
     @Override
     public void onSubtitleClick() {
         SubtitleDialog.create().view(mBinding.exo.getSubtitleView()).full(true).show(this);
-        hideControl();
+        App.post(this::hideControl, 100);
     }
 
     @Override

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

@@ -683,7 +683,7 @@ public class LiveActivity extends BaseActivity implements GroupPresenter.OnClick
     @Override
     public void onSubtitleClick() {
         SubtitleDialog.create().view(mBinding.exo.getSubtitleView()).full(true).show(this);
-        hideControl();
+        App.post(this::hideControl, 100);
     }
 
     @Override

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

@@ -1026,7 +1026,7 @@ public class VideoActivity extends BaseActivity implements CustomKeyDownVod.List
     @Override
     public void onSubtitleClick() {
         SubtitleDialog.create().view(mBinding.exo.getSubtitleView()).full(isFullscreen()).show(this);
-        hideControl();
+        App.post(this::hideControl, 100);
     }
 
     @Override