权限没有，则隐藏 function forum_list_access_filter($forumlist, $gid, $allow = 'allowread') { global $grouplist; if (empty($forumlist)) return array(); if (1 == $gid) return $forumlist; $forumlist_filter = $forumlist; $group = $grouplist[$gid]; foreach ($forumlist_filter as $fid => $forum) { if (empty($forum['accesson']) && empty($group[$allow]) || !empty($forum['accesson']) && empty($forum['accesslist'][$gid][$allow])) { unset($forumlist_filter[$fid]); } unset($forumlist_filter[$fid]['accesslist']); } return $forumlist_filter; } function forum_filter_moduid($moduids) { $moduids = trim($moduids); if (empty($moduids)) return ''; $arr = explode(',', $moduids); $r = array(); foreach ($arr as $_uid) { $_uid = intval($_uid); $_user = user_read($_uid); if (empty($_user)) continue; if ($_user['gid'] > 4) continue; $r[] = $_uid; } return implode(',', $r); } function forum_safe_info($forum) { //unset($forum['moduids']); return $forum; } function forum_filter($forumlist) { foreach ($forumlist as &$val) { unset($val['brief'], $val['announcement'], $val['seo_title'], $val['seo_keywords'], $val['create_date_fmt'], $val['icon_url'], $val['modlist']); } return $forumlist; } function forum_format_url($forum) { global $conf; if (0 == $forum['category']) { // 列表URL $url = url('list-' . $forum['fid'], '', FALSE); } elseif (1 == $forum['category']) { // 频道 $url = url('category-' . $forum['fid'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = url('read-' . trim($forum['brief']), '', FALSE); } if ($conf['url_rewrite_on'] > 1 && $forum['well_alias']) { if (0 == $forum['category'] || 1 == $forum['category']) { $url = url($forum['well_alias'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = ($forum['threads'] && $forum['brief']) ? url($forum['well_alias'] . '-' . trim($forum['brief']), '', FALSE) : url($forum['well_alias'], '', FALSE); } } return $url; } function well_forum_alias() { $forumlist = forum_list_cache(); if (empty($forumlist)) return ''; $key = 'forum-alias'; static $cache = array(); if (isset($cache[$key])) return $cache[$key]; $cache[$key] = array(); foreach ($forumlist as $val) { if ($val['well_alias']) $cache[$key][$val['fid']] = $val['well_alias']; } return array_flip($cache[$key]); } function well_forum_alias_cache() { global $conf; $key = 'forum-alias-cache'; static $cache = array(); // 用静态变量只能在当前 request 生命周期缓存，跨进程需要再加一层缓存：redis/memcached/xcache/apc if (isset($cache[$key])) return $cache[$key]; if ('mysql' == $conf['cache']['type']) { $arr = well_forum_alias(); } else { $arr = cache_get($key); if (NULL === $arr) { $arr = well_forum_alias(); !empty($arr) AND cache_set($key, $arr); } } $cache[$key] = empty($arr) ? '' : $arr; return $cache[$key]; } ?>javascript - React Native: How to switch page without using NavigatorIOS component? - Stack Overflow

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    I'm newbie for react js and react native, I'm wondering how to navigate from one page(ponent) to another page(ponent) without relying on navigatorIOS or navigator ponent? In Hybrid develop mode, it's so easy, just add html element A with href attribute would work, but in React Native, how to do it without using NavigatorIOS?

    I'm newbie for react js and react native, I'm wondering how to navigate from one page(ponent) to another page(ponent) without relying on navigatorIOS or navigator ponent? In Hybrid develop mode, it's so easy, just add html element A with href attribute would work, but in React Native, how to do it without using NavigatorIOS?

    • javascript
    • reactjs
    • react-native
    Share Improve this question edited Dec 9, 2015 at 18:12 Kyeotic 19.9k12 gold badges72 silver badges132 bronze badges asked Dec 9, 2015 at 16:32 mailme365mailme365 5513 gold badges9 silver badges22 bronze badges
    Add a ment  | 

    2 Answers 2

    Reset to default 5

    One way would be to create a function that renders the ponent you would like to show on a click, basically replicating the functionality of an href: 

      changeComponent: function(ponent) {
    this.setState({
        ponentSelected: ponent    
    })
  },

  renderComponent: function(ponent) {
        if(ponent == 'One') {
        return <ComponentOne changeComponent={this.changeComponent} />
      } else if(ponent == 'Two') {
        return <ComponentTwo changeComponent={this.changeComponent} />
      } else if(ponent == 'Three') {
        return <ComponentThree changeComponent={this.changeComponent} />
      }
  },

  render: function() {
    return (
      <View style={styles.container}>
        {this.renderComponent(this.state.ponentSelected)}
      </View>
    );
  }

    And calling the function like this:

    <TouchableHighlight onPress={() => this.props.changeComponent('Two') } style={styles.button}><Text>Two</Text></TouchableHighlight>

    I Set up a full project here:

    https://rnplay/apps/HbqJpA

    'use strict';

var React = require('react-native');
var {
  AppRegistry,
  StyleSheet,
  Text,
  View,
  TouchableHighlight
} = React;

var SampleApp = React.createClass({

  getInitialState: function() {
        return {
            ponentSelected: 'One'
        }
    },

  changeComponent: function(ponent) {
    this.setState({
        ponentSelected: ponent    
    })
  },

  renderComponent: function(ponent) {
        if(ponent == 'One') {
        return <ComponentOne changeComponent={this.changeComponent} />
      } else if(ponent == 'Two') {
        return <ComponentTwo changeComponent={this.changeComponent} />
      } else if(ponent == 'Three') {
        return <ComponentThree changeComponent={this.changeComponent} />
      }
  },

  render: function() {
    return (
      <View style={styles.container}>
        {this.renderComponent(this.state.ponentSelected)}
      </View>
    );
  }
});

var ComponentOne = React.createClass({
    render: function() {
    return (
        <View style={{backgroundColor: 'red', paddingTop:60, flex:1}}>
        <Text style={{color: 'white', marginBottom:150, fontSize:20}}>Hello From Component One</Text>
        <TouchableHighlight onPress={() => this.props.changeComponent('Two') } style={styles.button}><Text>Two</Text></TouchableHighlight>
        <TouchableHighlight onPress={() => this.props.changeComponent('Three') } style={styles.button}><Text>Three</Text></TouchableHighlight>
      </View>
    )
  }
})

var ComponentTwo = React.createClass({
    render: function() {
    return (
        <View style={{backgroundColor: 'orange', paddingTop:60, flex:1}}>
        <Text style={{color: 'white', marginBottom:150, fontSize:20}}>Hello From Component Two</Text>
        <TouchableHighlight onPress={() => this.props.changeComponent('One') } style={styles.button}><Text>One</Text></TouchableHighlight>
        <TouchableHighlight onPress={() => this.props.changeComponent('Three') } style={styles.button}><Text>Three</Text></TouchableHighlight>
      </View>
    )
  }
})


var ComponentThree = React.createClass({
    render: function() {
    return (
        <View style={{backgroundColor: 'purple', paddingTop:60, flex:1}}>
        <Text style={{color: 'white', marginBottom:150, fontSize:20}}>Hello From Component Three</Text>
        <TouchableHighlight onPress={() => this.props.changeComponent('One') } style={styles.button}><Text>One</Text></TouchableHighlight>
        <TouchableHighlight onPress={() => this.props.changeComponent('Two') } style={styles.button}><Text>Two</Text></TouchableHighlight>
      </View>
    )
  }
})

var styles = StyleSheet.create({
  container: {
    flex: 1,
  },
  button: {
    flexDirection: 'row',
    height: 60,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#ededed'
  }
});

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

    here's nader's code but updated to the latest version of react-native

    import React, { Component } from 'react';
import {
  AppRegistry,
  StyleSheet,
  Text,
  View,
  Image,
  WebView,
  Dimensions,
  Modal,
  TouchableHighlight
} from 'react-native';

class test extends Component {
  constructor(props)
  {
    super(props);
    this.state =
    {
      ponentSelected: 'One',
    }
  }

  changeComponent = (ponent) =>{
    this.setState({ponentSelected: ponent});
  }

  renderComponent(ponent) {
        if(ponent == 'One') {
        return <ComponentOne changeComponent={this.changeComponent} />
      } else if(ponent == 'Two') {
        return <ComponentTwo changeComponent={this.changeComponent} />
      } else if(ponent == 'Three') {
        return <ComponentThree changeComponent={this.changeComponent} />
      }
  }

  render() {
    return (
      <View style={styles.container}>
        {this.renderComponent(this.state.ponentSelected)}
      </View>
    );
  }
}

class ComponentOne extends Component {
    render() {
    return (
        <View style={{backgroundColor: 'red', paddingTop:60, flex:1}}>
        <Text style={{color: 'white', marginBottom:150, fontSize:20}}>Hello From Component One</Text>
        <TouchableHighlight onPress={() => this.props.changeComponent('Two') } style={styles.button}><Text>Two</Text></TouchableHighlight>
        <TouchableHighlight onPress={() => this.props.changeComponent('Three') } style={styles.button}><Text>Three</Text></TouchableHighlight>
      </View>
    )
  }
}

class ComponentTwo extends Component {
    render() {
    return (
        <View style={{backgroundColor: 'orange', paddingTop:60, flex:1}}>
        <Text style={{color: 'white', marginBottom:150, fontSize:20}}>Hello From Component Two</Text>
        <TouchableHighlight onPress={() => this.props.changeComponent('One') } style={styles.button}><Text>One</Text></TouchableHighlight>
        <TouchableHighlight onPress={() => this.props.changeComponent('Three') } style={styles.button}><Text>Three</Text></TouchableHighlight>
      </View>
    )
  }
}


class ComponentThree extends Component {
    render() {
    return (
        <View style={{backgroundColor: 'purple', paddingTop:60, flex:1}}>
        <Text style={{color: 'white', marginBottom:150, fontSize:20}}>Hello From Component Three</Text>
        <TouchableHighlight onPress={() => this.props.changeComponent('One') } style={styles.button}><Text>One</Text></TouchableHighlight>
        <TouchableHighlight onPress={() => this.props.changeComponent('Two') } style={styles.button}><Text>Two</Text></TouchableHighlight>
      </View>
    )
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
  },
  button: {
    flexDirection: 'row',
    height: 60,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#ededed'
  }
});

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

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