解决EventBus中接收方法中无法更新UI的问题

 Button eventBus= (Button) findViewById(R.id.eventbus);
    RxView.clicks(eventBus)
            .throttleFirst(1,TimeUnit.SECONDS)
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(new Consumer<Object>() {
                @Override
                public void accept(@NonNull Object o) throws Exception {
                    EventBus.getDefault().postSticky(new MessageEvent("MainActivity:this is Sticky"));
                    startActivity(SecondActivity.class);
                }
            });'

 @Override
 @org.greenrobot.eventbus.Subscribe
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    UtilsLog.i("主线程Id="+Thread.currentThread().getId()+"，主线程名字="+Thread.currentThread().getName());
    setContentView(R.layout.activity_second);
    EventBus.getDefault().register(this);
    initView();
}
private void initView() {
    show= (TextView) findViewById(R.id.result);
    show.setText("沉梦昂志");
}

 @org.greenrobot.eventbus.Subscribe(sticky=true,threadMode = org.greenrobot.eventbus.ThreadMode.MAIN)
public void receiveMainActivity(MessageEvent event){
    String result=event.getMessage();
    show.setText(result);
}

@Override
@org.greenrobot.eventbus.Subscribe
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_second);
    initView();
    EventBus.getDefault().register(this);
}