从堆栈导航器中删除屏幕

Question

我已经观察到了后面的按钮逻辑作品，可以看到堆栈中的屏幕序列。我有一个放置在堆栈导航器中的抽屉导航器。

在堆栈的顶部，我溅出了屏幕。在仪表板上，当我按下返回按钮时，我需要飞溅屏幕。

输入应用程序后，如何从堆栈中删除Splash屏幕，因此，当我按下返回按钮仪表板时，它将退出应用程序而不是启动屏幕。

/* @flow */
import React from "react";
import { Platform, Text } from "react-native";
import { Root } from "native-base";
import { StackNavigator, DrawerNavigator} from "react-navigation";
import Register from "./components/Register";
import Available from "./components/Available";
import Splash from "./components/splash/“;
import SideBar from "./components/sidebar";
import Discover from "./components/Discover/";
import Dashboard from "./components/Dashboard/";
import Contact from "./components/Contact"

const Drawer = DrawerNavigator(
  {
    Dashboard: { screen: Dashboard },
    Discover: { screen: Discover },
    Contact: { screen: Contact},
      },
  {
    navigationOptions: {
      gesturesEnabled: false,
    },
   initialRouteName: "Dashboard",
    contentOptions: {
      activeTintColor: "#e91e63"
    },
    drawerPosition: 'right',
    contentComponent: props => <SideBar {...props} />
  }
);

const AppNavigator = StackNavigator(
    {
      Splash: { screen: Splash },
      Drawer: { screen: Drawer },                           
      Available: { screen: Available },
        Register: { screen: Register },
    },
    {
       //  initialRouteName: “Splash”,
         headerMode: "none",
    }
);
export default () =>
    <Root>
        <AppNavigator />
    </Root>;

Answer 1

最简单的解决方案之一是，将当前屏幕替换为新屏幕，因此不允许用户回去。

const SplashScreen: () => {
    ...
  navigation.replace("LoginScreen"); // Move forward and Remove this screen from stack

请参阅https://reactnavigation.org/docs/stack-actions/#replace

Answer 2

一种解决方案是将堆栈重置在飞溅屏幕组件内，然后将用户重定向到您喜欢的屏幕：

import { NavigationActions } from 'react-navigation'
const resetAction = NavigationActions.reset({
  index: 0,
  actions: [
    NavigationActions.navigate({ routeName: 'Drawer'})
  ]
})
this.props.navigation.dispatch(resetAction)

react-navigation 的较新版本：

import { StackActions, NavigationActions } from 'react-navigation';
const resetAction = StackActions.reset({
  index: 0,
  actions: [NavigationActions.navigate({ routeName: 'Profile' })],
});
this.props.navigation.dispatch(resetAction);

链接到官方文档

Answer 3

在 react-navigation 5.x 版本中。如果要打开新屏幕并删除以前的堆栈屏幕，则可以写入： -

navigation.dispatch(StackActions.replace('screen_name', {params: {}}));

替换操作允许在导航状态中替换路由。您可以将其导入： -

import { StackActions } from '@react-navigation/native';

如果要在堆栈导航上执行其他操作，请查看此链接 - https://reaectnavigation.org/docs/stack-actions

Answer 4

我使用此

解决了它

代码：

const prevGetStateForActionHomeStack = HomeStack.router.getStateForAction;
HomeStack.router = {
  ...HomeStack.router,
  getStateForAction(action, state) {
    if (state && action.type === 'ReplaceCurrentScreen') {
      const routes = state.routes.slice(0, state.routes.length - 1);
      routes.push(action);
      return {
        ...state,
        routes,
        index: routes.length - 1,
      };
    }
    return prevGetStateForActionHomeStack(action, state);
  },
};
replaceScreen = () => {
  const { locations, position } = this.props.navigation.state.params;
  this.props.navigation.dispatch({
    key: 'NearMeMap',
    type: 'ReplaceCurrentScreen',
    routeName: 'NearMeMap',
    params: { locations, position },
  });
};

另外，如果您需要深入说明代码，请在此处观看此简短视频

Answer 5

useEffect(() => {
setTimeout(() => {
  navigation.reset({
    index:0,
    routes:[
      {
        name:"Welcome",
      //  params:{key:'param'},
      },
    ],
  });
}, 1000);},[]);

您也可以触发此onpress，例如：

onPress={()=>navigation.reset({
    index:0,
    routes:[
      {
        name:"NameOfScreen",
      //  params:{key:'param'},
      },
    ],
  })}