undefined is not an object (evaluating 'this.props.navigator.push')

来源：互联网发布：非诚勿扰php程序员视频编辑：程序博客网时间：2024/06/17 18:23

在通过navigator 进行页面跳转的过程中一直报这样的错误

先看程序入口文件index.android.js

import React, { Component } from 'react';
import {
AppRegistry,
StyleSheet,
Text,
TouchableHighlight,
Navigator,
} from 'react-native';
import Welcome from './Welcome';

class MyProject extends Component {

render() {
   var defaultName = 'Welcome';
     var defaultComponent = Welcome;
    return (

    <Navigator
          //指定了默认的页面，也就是启动app之后会看到的第一屏，需要两个参数，name跟component
          initialRoute={{ name: defaultName, component: defaultComponent }}
          configureScene={(route) => {
            //跳转的动画
            return Navigator.SceneConfigs.FadeAndroid;
          }}
          renderScene={(route, navigator) => {
            let Component = route.component;
            if(route.component){
                return <Component {...route.params} navigator={navigator} />
            }
          }} />
    );
}

}

AppRegistry.registerComponent('MyProject', () => MyProject);

再看第一个页面欢迎页面：Welcome.js

import React, { Component } from 'react';
import {
Text,
View,
Navigator,
TouchableHighlight
} from 'react-native';
import Login from "./Login";

export default class Welcome extends Component {

constructor(props){
        super(props);
        this.state = {};
    }

_onPress(){
       let navigator = this.props.navigator;
        Alert.alert('Button has been pressed!'+navigator);
        if (navigator) {
          navigator.push({
                name:'Login',
                component:Login
        });
        }
    }
render() {
     return (
            <View>
              <TouchableHighlight onPress={this._onPress.bind(this)}>

              <TouchableHighlight onPress={this._onPress}>

<Text >此为欢迎页面点击进入登录页面</Text> </TouchableHighlight> </View> ); }}

红色的代替蓝色的就可以解决此问题了

0 1