renderCell not working. about react-native-largelist HOT 12 CLOSED

render() {
    
    return (
        <LargeList
            style={styles.container}
            numberOfRowsInSection={() => this.state.data.length}
            heightForCell={() => 88}
            onRefresh={()=>{
                this.onRefresh();
            }}
            refreshing={this.state.refreshing}
            renderCell={this.renderItem.bind(this)}
        />
    );
}
onRefresh () {
    try {
        this.setState({refreshing:true});
        let url = 'xxxxxxxxx';
        common.fetchAuthed(url)
            .then((responseJson)=>{
                if(responseJson.length === 0){
                    this.setState({
                        refreshing:false,
                        
                    });
                    return;
                }
                
                
                this.setState({
                    data : responseJson,
                    refreshing:false
                });
            })
        
    } catch (e) {
        console.log('网络错误');
    }
}
componentDidMount () {
    this.onRefresh().done();
}
renderItem(section: number, row: number) {
    console.log('row='+row);
    let msg = this.state.data[row];
    return (
        <View style={{ flex: 1 }}>
            <View style={{ flex: 1, flexDirection: "row", alignItems: "center" }}>
                <View style={{marginLeft:4}}>
                    <Text style={{ fontSize: 18 }}>
                        {msg.name}
                    </Text>
                    <Text style={{ fontSize: 14, marginTop: 8 }}>
                        {msg.distance}
                    </Text>
                </View>
            </View>
        </View>
    );
}