react-native – React Navigation Reset可以添加参数吗？

我仍然是新的反应导航.
我想在登录成功后重置路由信息.但是有一些参数,比如我希望传递给主页面的登录信息.

import { NavigationActions } from 'react-navigation'

const resetAction = NavigationActions.reset({
  index: 0,
  actions: [
        NavigationActions.navigate({ routeName: 'Profile',
                params:{user:this.state.username}})
      ]
  })
    this.props.navigation.dispatch(resetAction)

在Profile页面中,我想访问params,所以我使用它：

constructor(props){
super(props)
this.state = { username: this.props.navigation.state.params.user, 
  }

但我收到：undefined不是控制台日志中的对象(评估’_this.props.navigation.state.params.user’).
我可以知道如何获取参数？谢谢

您可以在react-native stack导航器的reset操作中传递params,如下所示： –

const resetAction = NavigationActions.reset({
            index: 0,
            actions: [ 
                NavigationActions.navigate({ 
                    routeName: 'ScreenName',      // name of the screen you want to navigate
                    params: {
                        paramsKey: paramsValue   // this second parameter is for sending the params
                    } 
                })
            ],
});
this.props.navigation.dispatch(resetAction);

并从导航状态参数获取第二个屏幕中的参数值,如下所示： –

static navigationOptions = ({navigation, screenProps}) => {
    const params = navigation.state.params || {};   // You can get the params here as navigation.state.params.paramsKey

    console.log("CompareScreen product_id:", params.paramsKey);
}