[mobile] clean code

app/src/mobile/java/com/fongmi/android/tv/ui/activity/MainActivity.java

@@ -66,6 +66,7 @@ public class MainActivity extends BaseActivity implements NavigationBarView.OnIt
     }
 
     private void initFragment() {
+        if (mFragments != null) return;
         mFragments = new ArrayList<>();
         mFragments.add(VodFragment.newInstance());
         mFragments.add(SettingFragment.newInstance());

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

@@ -78,6 +78,10 @@ public class SettingFragment extends BaseFragment implements ConfigCallback, Sit
         mBinding.decode.setOnClickListener(view -> setDecode());
         mBinding.render.setOnClickListener(view -> setRender());
         mBinding.scale.setOnClickListener(view -> setScale());
+        mBinding.version.setOnLongClickListener(v -> {
+            Updater.get().force().branch("dev").start();
+            return true;
+        });
     }
 
     @Override