Clean code

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

@@ -176,7 +176,7 @@ public class HomeActivity extends BaseActivity implements CustomTitleView.Listen
 
             @Override
             public void error(String msg) {
-                if (TextUtils.isEmpty(msg) && AppDatabase.getDate().length() > 0) onRestore();
+                if (TextUtils.isEmpty(msg) && AppDatabase.getBackupKey().exists()) onRestore();
                 else mBinding.progressLayout.showContent();
                 mResult = Result.empty();
                 Notify.show(msg);

app/src/main/java/com/fongmi/android/tv/db/AppDatabase.java

@@ -79,7 +79,7 @@ public abstract class AppDatabase extends RoomDatabase {
             if (shm.exists()) Path.move(shm, App.get().getDatabasePath(shm.getName()).getAbsoluteFile());
             if (pref.exists()) Prefers.restore(pref);
             App.post(callback::success);
-            Path.clear(getBackupKey());
+            Path.clear(Path.tv());
         });
     }