头部左边点击错误问题

wechat_demo/app/Home.js

        let barItems =  this.barItems;
        return (
            <View>
                <Header title="我的二维码"></Header>
                <Header title="我的二维码" leftEvent={()=>{}}></Header>
                <SegmentedBar
                justifyItem={justifyItem}
                indicatorType={indicatorType}

wechat_demo/app/My.js

    render() {
        return (
            <View>
                <Header title="我的"></Header>
                <Header title="我的" leftEvent={()=>{}}></Header>
                {/* <Text>My</Text> */}
                <View style={{ flexDirection:'row',alignItems:'center',padding:20,}}>
                    <Image style={styles.headImg} source={require('../static/img/touxiang.png')}/>