android - View null 没有设置 NavController

Question

我有一些关于Firebase Crashlytics以下崩溃的报告，

Fatal Exception: java.lang.IllegalStateException: View null does not have a NavController set
       at androidx.navigation.Navigation.findNavController(Navigation.java:84)
       at com.***.splash.SplashFragment.lambda$checkLoggedInStatus$1$SplashFragment(SplashFragment.java:xxx)
       at com.***.splash.-$$Lambda$SplashFragment$VafildstAQkrvymiO-AhxCqBHIE.run(lambda)
       at android.os.Handler.handleCallback(Handler.java:739)
       at android.os.Handler.dispatchMessage(Handler.java:95)
       at android.os.Looper.loop(Looper.java:148)
       at android.app.ActivityThread.main(ActivityThread.java:7325)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)

这是我的SplashFragment

public class SplashFragment extends DaggerFragment {

    ...

    private View view;

    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
      view = inflater.inflate(R.layout.fragment_splash, container, false);
      ...
      return view;
    }

    @Override
    public void onResume() {
      super.onResume();
      checkLoggedInStatus();
    }

    private void checkLoggedInStatus() {
      if (!splashViewModel.isLoggedIn()) {
        new Handler().postDelayed(() - >
             Navigation
                 .findNavController(view) // line xxx
                 .navigate(R.id.action_splashFragment_to_loginFragment), 1500);
      } else {...}
    }

    ...

    @Override
    public void onDestroy() {
      view = null;
      super.onDestroy();
    }
  }

---

我的模拟器甚至在真实设备中都没有遇到这个问题，DEBUG并且RELEASE构建类型。所以我很难追踪它。这发生在1.75%现场用户周围。所以我的问题是，

怎么view变成null只有几个用户的？

有人可以建议解决这个问题吗？

标签： androidviewnavigationandroid-architecture-navigationandroid-navigation