[leanback] keep hot words

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

@@ -25,6 +25,7 @@ import com.fongmi.android.tv.ui.custom.CustomKeyboard;
 import com.fongmi.android.tv.ui.custom.CustomTextListener;
 import com.fongmi.android.tv.ui.custom.SpaceItemDecoration;
 import com.fongmi.android.tv.ui.custom.dialog.SiteDialog;
+import com.fongmi.android.tv.utils.Prefers;
 import com.fongmi.android.tv.utils.Utils;
 
 import java.io.IOException;
@@ -94,10 +95,12 @@ public class SearchActivity extends BaseActivity implements WordAdapter.OnClickL
 
     private void getHot() {
         mBinding.hint.setText(R.string.search_hot);
+        mWordAdapter.addAll(Hot.get(Prefers.getHot()));
         OkHttp.newCall("https://api.web.360kan.com/v1/rank?cat=1").enqueue(new Callback() {
             @Override
             public void onResponse(@NonNull Call call, @NonNull Response response) throws IOException {
                 List<String> items = Hot.get(response.body().string());
+                if (mWordAdapter.getItemCount() > 0) return;
                 App.post(() -> mWordAdapter.addAll(items));
             }
         });