Question

我正在使用react-native-tab-navigator：

https://github.com/happypancake/react-native-tab-navigator

<TabNavigator style={styles.container}>
    <TabNavigator.Item
      selected={this.state.selectedTab === 'home'}
      title="Home"
      selectedTitleStyle={{color: "#3496f0"}}
      renderIcon={() => <Icon name="home" size={px2dp(22)} color="#666"/>}
      renderSelectedIcon={() => <Icon name="home" size={px2dp(22)} color="#3496f0"/>}
      onPress={() => this.setState({selectedTab: 'home'})}>
      <SideMenu menu={MenuComponent}>
        <HomeScreen/>
      </SideMenu>
    </TabNavigator.Item>
    <TabNavigator.Item
      selected={this.state.selectedTab === 'links'}
      title="Links"
      selectedTitleStyle={{color: "#3496f0"}}
      renderIcon={() => <Icon name="user" size={px2dp(22)} color="#666"/>}
      renderSelectedIcon={() => <Icon name="user" size={px2dp(22)} color="#3496f0"/>}
      onPress={() => this.setState({selectedTab: 'links'})}>
      <SideMenu menu={MenuComponent}>
        <LinksScreen/>
      </SideMenu>
    </TabNavigator.Item>
  </TabNavigator>

我的屏幕配置如下：

// app/index.js

import React, { Component } from 'react';
import { Router, Scene } from 'react-native-router-flux';

import HomeScreen from './containers/HomeScreen';
import LinksScreen from './containers/LinksScreen';
import TabNavScreen from './containers/TabNavScreen';

const MyApp = () => {
  return (
    <Router>
      <Scene key="root">
        <Scene key="home"
          component={HomeScreen}
          title="Home"
        />
        <Scene
          key="links"
          component={LinksScreen}
          title="Links"
        />
        <Scene key="tabNav"
          component={TabNavScreen}
          title="Home"
          initial
        />
      </Scene>
    </Router>
  );
}

export default MyApp;

我需要在更改标签时更改主屏幕的标题。现在它被固定在家里，我尝试的任何东西似乎都不成功。

提前感谢您的帮助。

Answer 1

如果您将标题作为道具传递，则只需将title={this.props.title}更改为% Generate sample data... data = randi([0 99],2,randi([5 10],1)); event = 12; % Call fopen with permission A (opens or creates a file for writing, appending data)... fid = fopen('phase.dat','a'); % Write the event header... fprintf(fid,'Event #%d %s\n',event,datestr(now(),'mmm dd yyyy')); % Write the event data... for k = 1:size(data,2) fprintf(fid,'file #%d %02d %02d\n',k,data(1,k),data(2,k)); end % Close the file handler... fclose(fid);

即可访问该标题

更改屏幕反应本地

1 个答案: