反应本机未定义不是函数 [英] React native undefined is not a function

问题描述

我是新来的本地人.我正在尝试推送到另一页.但是我说错了

I am new to react native. I am trying to push to another page. But i am getting error saying

Undefined is not a function(evaluating '_this2._goToProductListing('app.productListing'{title:item.title})')

我的代码是这个

 _renderContent(section, i, isActive) {
        return (
            <View>
                <List>
                    {section.content.map((item, i) => {
                        return(
                            <ListItem containerStyle={styles.categoryLists}
                                      onPress={() => this._goToProductListing('app.productListing',{title:item.title})}
                                      key={i} title={item.title}
                            />
                        );
                    })}
                </List>
            </View>
        );
    }


    //Send to product list page
    _goToProductListing = (screen,data) => {
        this.props.navigator.push({
            screen: screen,
            title: data.title,
            passProps: {
                data: data
            }
        });
    };
render() {
        return (


            <View style={stylesheet.accrodianWraper}>

                <ScrollView>
                    <Accordion
                        activeSection={this.state.activeSection}
                        sections={CONTENT}
                        touchableComponent={TouchableOpacity}
                        renderHeader={this._renderHeader}
                        renderContent={this._renderContent}
                        duration={0}
                        onChange={this._setSection.bind(this)}
                    />
                </ScrollView>
            </View>
        )
    }

有人可以告诉我我做错了什么吗?我该如何解决?

Can anyone please tell me where i am doing wrong?? And how can i fix it?

对于导航，我正在使用wix react native navigation，并且页面app.productListing也已注册在index.js中. 我正在使用react-native-collapsible折叠手风琴， B

For navigation i am using wix react native navigation, And the page app.productListing is also registered in the index.js. And i am using react-native-collapsible for accordion, B

推荐答案

也尝试将_renderContent设置为带有箭头功能的属性:

Try making the _renderContent a property with an arrow function too:

_renderContent = (section, i, isActive) => {

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