【发布时间】:2019-11-18 16:04:48
【问题描述】:
我正在尝试将一些数据从容器传递到模态,并且我已经做到了。它得到错误 undefined is not an object evaluation (evalating _this.props.status) 我做了什么吗?我应该在道具中调用什么
这些是我的代码
container.js
buildPanel(index, item) {
let panel = [];
let keys = DBkeys['Requests'].MyRequest;
let status = item[keys['status']];
panel.push(<View style={{ position: 'absolute', right: 0, bottom: 0, padding: normalize(5), alignItems: 'center' }} key={'status'}>
<TouchableOpacity onPress={this.handleShowModal()}>
<Icon name={img.itemStatus[status].name} type={img.itemStatus[status].type} color={img.itemStatus[status].color} size={normalize(38)} />
</TouchableOpacity>
</View>);
return panel;
}
<View style={[styles.panelContainer, status === 'success' ? {} : { backgroundColor: color.white }]}>
<FlatList
showsVerticalScrollIndicator={false}
progressViewOffset={-10}
refreshing={this.state.refreshing}
onRefresh={this.onRefresh.bind(this)}
onMomentumScrollEnd={(event) => event.nativeEvent.contentOffset.y === 0 ? this.onRefresh() : null}
data={content}
renderItem={({ item }) => item}
keyExtractor={(item, key) => key.toString()}
/>
</View>
<IconModal visible={this.state.modalVisible} close={this.handleDismissModal} status='test' desc='test' />
IconModal.js
const IconModal = (props) => {
return(
<Modal
isVisible={props.visible}
onBackdropPress={props.close}
>
<View style={styles.dialogBox}>
<View style={styles.icon}>
<Icon></Icon>
</View>
<View style={styles.text}>
<Text style={styles.status}>{this.props.status}</Text>
<Text>{this.props.desc}</Text>
</View>
<TouchableOpacity onPress={props.close}>
<View>
<Text style={styles.buttonText}>GOT IT</Text>
</View>
</TouchableOpacity>
</View>
</Modal>
)
}
IconModal.propTypes ={
visible: PropTypes.bool.isRequired,
close: PropTypes.func,
}
【问题讨论】:
-
为了避免混淆
this,我通常更喜欢解构props,像({ status, close, visible, ...otherProps }) => { ... }那样传递给函数组件。 -
好的,谢谢您的建议