2回答

CrazyCodeBoy

2018-07-09

确认下react-navigation的版本如果是2.0以上版本参考如下代码：

import {createDrawerNavigator, createStackNavigator,SafeAreaView,DrawerItems} from 'react-navigation';
import {createBottomTabNavigator, BottomTabBar} from 'react-navigation-tabs';

class TabBarComponent extends React.Component {
    constructor(props) {
        super(props);
        this.theme = {
            tintColor: props.activeTintColor,
            updateTime: new Date().getTime()
        }
    }

    render() {
        const {routes, index} = this.props.navigation.state;
        const {theme} = routes[index].params;
        if (theme && theme.updateTime > this.theme.updateTime) {
            this.theme = theme;
        }
        /**
         * custom tabBarComponent
         * https://github.com/react-navigation/react-navigation/issues/4297
         */
        return (
            <BottomTabBar
                {...this.props}
                activeTintColor={this.theme.tintColor || this.props.activeTintColor}
            />
        );
    }

}

export const AppTabNavigator = createBottomTabNavigator({
    Page1: {
    ...

0

0

r4ggjlx

2018-07-07

routes[index].params ===undefined?

0

3

liuxiaozhu

回复

CrazyCodeBoy

第一次加载的时候，确实是 undefined。我想知道第一次加载时，在哪里配置传入这个 params ？

2018-07-11

共3条回复