Reactjs 如何获取在主选项卡导航器中设置的默认标题?

Reactjs 如何获取在主选项卡导航器中设置的默认标题?,reactjs,react-native,react-navigation,react-native-navigation,react-native-drawer,Reactjs,React Native,React Navigation,React Native Navigation,React Native Drawer,我想获得默认的标题,并根据我的组件进行更新。 标题作为标题添加到MainTabNavigator中 const navOptions = ({ navigation }) => { return { headerTitle: ( <Image source={require("../assets/images/common/logo.png")}/> ), }; }; const HomeStack = createStackNavigat

我想获得默认的标题,并根据我的组件进行更新。 标题作为标题添加到MainTabNavigator中

const navOptions = ({ navigation }) => {
  return {
    headerTitle: (
      <Image source={require("../assets/images/common/logo.png")}/>
    ),
  };
};

const HomeStack = createStackNavigator(
  {
    Home: {
      screen: Dashboard
    }
  },
  {
    initialRouteName: "Home",
    defaultNavigationOptions: navOptions
  },
);

是否要为每个屏幕设置标题?我想更改某些事件的标题,还想保留导航器传递的旧标题。
static navigationOptions = ({ navigation }) => ({
    header: QueryTocheck ? keepDefaultOldHeaderHere:updateHeaderHere
});