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我正在关注 react-navigation 教程，一切正常，直到我尝试使用，createBottomTabNavigator我将两个传递createStackNavigator给createBottomTabNavigator我遇到了空白屏幕，FavNavigator根本没有渲染。
我尝试用组件替换FavNavigator它FavoritesScreen并显示它，但缺少标题栏。

这是应用程序：

在此处输入图像描述

这是导航器配置代码：

import React from "react";
import { createStackNavigator } from "react-navigation-stack";
import { createBottomTabNavigator } from "react-navigation-tabs";
import { createAppContainer } from "react-navigation";
import { Ionicons } from "@expo/vector-icons";
import { createMaterialBottomTabNavigator } from "react-navigation-material-bottom-tabs";

import CategoriesScreen from "../screens/CategoriesScreen";
import CategoryMealsScreen from "../screens/CategoryMealsScreen";
import MealsDetailScreen from "../screens/MealsDetailScreen";
import FavoritesScreen from "../screens/FavoritesScreen";
import Colors from "../constans/Colors";
import { Platform } from "react-native";

const defaultStackNavOptions = {
  headerStyle: {
    backgroundColor: Platform.OS === "android" ? Colors.primaryColor : ""
  },
  headerTintColor: Platform.OS === "android" ? "white" : Colors.primaryColor,
  headerTitle: "A Screen"
};

const MealsNavigator = createStackNavigator(
  {
    Categories: {
      screen: CategoriesScreen
    },
    CategoryMeals: {
      screen: CategoryMealsScreen
    },
    MealDetail: MealsDetailScreen
  },
  {
    defaultNavigationOptions: defaultStackNavOptions
  }
);

const FavNavigator = createStackNavigator(
  {
    Favorites: FavoritesScreen,
    MealDetail: MealsDetailScreen
  },
  {
    defaultNavigationOptions: defaultStackNavOptions
  }
);

const tabScreenConfig = {
  Meals: {
    screen: MealsNavigator,
    navigationOptions: {
      tabBarIcon: tabInfo => {
        return (
          <Ionicons name="ios-restaurant" size={25} color={tabInfo.tintColor} />
        );
      },
      tabBarColor: Colors.primaryColor
    }
  },
  Favorites: {
    screen: FavNavigator,
    navigationOptions: {
      tabBarIcon: tabInfo => {
        return <Ionicons name="ios-star" size={25} color={tabInfo.tintColor} />;
      },
      tabBarColor: Colors.accentColor
    }
  }
};

const MealsFavTabNavigator =
  Platform.OS === "android"
    ? createMaterialBottomTabNavigator(tabScreenConfig, {
        activeTintColor: "white",
        shifting: true,
        barStyle: {
          backgroundColor: Colors.primaryColor
        }
      })
    : createBottomTabNavigator(tabScreenConfig, {
        tabBarOptions: {
          activeTintColor: Colors.accentColor
        }
      });

export default createAppContainer(MealsFavTabNavigator);

提前致谢。

完整代码： GitHub

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1 回答 1

2

我今天有类似的问题。我通过将 react-native-screens 降级/升级到版本来挽救它：“react-native-screens”：“2.1.0”。之前是2.4

于 2020-04-14T21:29:30.137 回答