屏幕之间的发送状态反应本机

问题描述

当前正在使用某个应用程序，该应用程序将为您提供基于幻想api的班级/种族/背景故事.创建项目时，我使用了expo的标签模板.

Am currently working with an app that will provide you with a class/race/background story from an fantasy api. I used expo's tab template when i created the project.

所以我的问题是，我如何将在竞赛"屏幕中获取的数据发送到背景故事屏幕，以获取正确的背景故事?我一直在尝试谷歌搜索，但找不到一个有帮助的答案，我唯一发现的是它与导航器有关，因此为什么我将其链接了.

So my question is how would I send data that i fetched in my Race screen to my background-story screen in order to fetch the correct background-story? I've been trying to googling it but couldnt find an answer that helped, the only thing i found is that its something to do with the navigator, hence why i link it.

Maintabnavigator.js

Maintabnavigator.js

    import React from 'react';
import { Platform } from 'react-native';
import { createStackNavigator, createBottomTabNavigator, createDrawerNavigator } from 'react-navigation';
import { Icon } from 'expo';
import { Ionicons} from '@expo/vector-icons';
import HomeScreen from '../screens/HomeScreen';
import CharacterScreen from '../screens/CharacterScreen';
import BackgroundDetails from '../screens/CharacterScreens/BackgroundDetails';
import RaceDetails from '../screens/CharacterScreens/RaceDetails';
import ClassDetails from '../screens/CharacterScreens/ClassDetails';


const RaceStack = createStackNavigator({
  race: RaceDetails
});
const ClassStack = createStackNavigator({
  class: ClassDetails
});
const BackgroundStack = createStackNavigator({
  background: BackgroundDetails
});
const GeneratorStack = createStackNavigator({
  generator: CharacterScreen,
});


GeneratorStack.navigationOptions= {
  tabBarLabel: 'Generator',
  tabBarIcon: ({focused}) => (
    <Icon.Entypo
      focused={focused}
      name={'retweet'}
      size={26}
    />
  )
}
RaceStack.navigationOptions= {
  tabBarLabel: 'Race',
  tabBarIcon: ({focused}) => (
    <Icon.MaterialIcons
      focused={focused}
      name={'person'}
      size={26}
    />
  )
}
ClassStack.navigationOptions= {
  tabBarLabel: 'Class',
  tabBarIcon: ({focused}) => (
    <Icon.MaterialCommunityIcons
      focused={focused}
      name={'sword-cross'}
      size={26}
    />
  )
}
BackgroundStack.navigationOptions= {
  tabBarLabel: 'Background Story',
  tabBarIcon: ({focused}) => (
    <Icon.Feather
      focused={focused}
      name={'book'}
      size={26}
    />
  )
}
export default createBottomTabNavigator({
  GeneratorStack,
  ClassStack,
  RaceStack,
  BackgroundStack,
});

推荐答案

当您从一个屏幕导航到另一个屏幕时，如下所示:

When you navigate from one screen to another as follows:

this.props.navigation.navigate('ContactDisplay', { item });

您可以在另一个屏幕上访问项目"，如下所示:

You may access 'item' in the other screen as follows:

console.log(this.props.navigation.state.params.item);

这篇关于屏幕之间的发送状态反应本机的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！