Question

我想创建一个订单页面，其中包含两个标签位置标签，我的订单标签。所以我创建了一个Order.js文件和另一个OrderContent.js文件。

Order.js

/* @flow */
import React from 'react'

import {
  View,
  StatusBar,
} from 'react-native'

import SplashScreen from 'react-native-splash-screen'

import HomeHeader from '../Components/HomeHeader'
import OrderContent from './OrderContent'


export default class OrdersScreen extends React.Component {
  static navigationOptions = {
    drawer: () => ({
      label: 'Orders',
    }),
  }
  static propTypes = {
    navigation: React.PropTypes.object.isRequired,
  }

  componentDidMount() {
    SplashScreen.hide()
  }
  render() {
    return (
      <View style={{flex: 1, backgroundColor: '#fff'}}>
        <StatusBar
          barStyle="light-content"
          backgroundColor={'#202930'} />
        <HomeHeader
          title="Order Page"
          navigation={this.props.navigation} />
        <OrderContent navigation={this.props.navigation}
           />
      </View>
    )
  }
}

Ordercontent.js

const CustomTabView = ({router, navigation}) => {
  const { routes, index } = navigation.state
  const ActiveScreen = router.getComponentForState(navigation.state)

  return (
    <View style={styles.container}>
      <CustomTabBar navigation={navigation} />
      <ActiveScreen
        navigation={addNavigationHelpers({
          ...navigation,
          state: routes[index],
        })}/>
    </View>
  )
}
CustomTabView.propTypes = {
  router: React.PropTypes.object.isRequired,
  navigation: React.PropTypes.object.isRequired,
  // team: React.PropTypes.func.isRequired,
}

const CustomTabRouter = TabRouter({
    PlaceOrder: {
      screen: PlaceOrderScreen,
      path: '/place-order',
    },
    MyOrders: {
      screen: MyOrderScreen,
      path: '/my-orders',
    },
  },
  {
    // Change this to start on a different tab
    initialRouteName: 'PlaceOrder',
  }
)

const OrderContent = createNavigationContainer(createNavigator(CustomTabRouter)(CustomTabView))

export default OrderContent

当我尝试运行该应用时，它显示为

没有为索引undefined定义路由。检查是否已使用有效的选项卡索引传入导航状态。

我知道问题存在于<OrderContent navigation={this.props.navigation} />部分本身但不知道如何克服。

Answer 1

默认情况下，react native转到名为index.js的页面您是否以此名称创建了文件？它应该包含这样的内容

<code>

import {AppRegistry} from 'react-native';
import App from './App';
import {name as appName} from './app.json';

AppRegistry.registerComponent(appName, () => App);
</code>

您可以代替Order或OrderContent代替App。基本上，您是通过这种方式选择“着陆标签”的。

React Native，没有为索引undefined定义的路由

1 个答案: