所以我要从第一个组件导航到FooItems页面,并将道具传递给导航。
showFooItemsPage = () => {
this.props.navigation.navigate('FooItemsComponent', {
fooItems: this.props.fooItems});
};
在我的FooItemsComponents上,我有一个带有renderItems函数的Flatlist,并且可以正常工作。但是,我想对Flatlist项目列表进行更改,然后单击Flatlist组件标题中的Save。
我现在遇到的主要问题是向我的Flatlist的Header Component发送道具。道具是未定义的,我不知道如何从FooItemsComponent或在页面之间导航时发送道具。
以下是我的FooItemsComponent的一些摘要:
class Header extends Component {
constructor(props) {
super(props);
}
async componentDidMount() {
//call some reducer action
}
save = items => {
this.props.saveItems(items);
this.props.navigation.navigate("previousComponent");
}
render() {
const {navigation, loading } = this.props;
return (
<View>
<View style={styles.header}>
<TouchableOpacity onPress={this.save}>
<Text style={styles.saveText}>Save</Text>
</TouchableOpacity>
</View>
<View
style={{
borderTopWidth: 1,
borderTopColor: Colors.grey,
height: 1,
}}>
</View>
</View>
);
}
}
export class FooItemsComponent extends Component {
constructor(props) {
super(props);
}
async componentDidMount() {
//some reducer action
}
renderItem = item => {
if (item.load) {
return <ActivityIndicator color={Colors.activityColor} size="small" />;
} else {
return (
<View>
<FooItems
{...item}
navigation={this.props.navigation}
showParticularItems={true}
/>
</View>
); }
};
render() {
const { fooItems, navigation, loading, props} = this.props;
if (!fooItems) fooItems = [];
return (
<View style={styles.container}>
<FlatList
keyExtractor={(item, index) => `key-${index}`}
data={fooItems}
renderItem={item => this.renderItem(fooItems.item)}
ItemSeparatorComponent={Separator}
ListHeaderComponent={Header}
ListFooterComponent={loading ? LoadingFooter : Separator}
/>
</View>
);
}
}
答案 0 :(得分:3)
使用箭头功能并包装标题:
AccessDenied: The resource hostedzone/*** can only be managed through servicediscovery.amazonaws.com (***)
在 <FlatList
keyExtractor={(item, index) => `key-${index}`}
data={fooItems}
renderItem={item => this.renderItem(fooItems.item)}
ItemSeparatorComponent={Separator}
ListHeaderComponent={() => <Header yourProps={'blabla title'}/> }
ListFooterComponent={loading ? LoadingFooter : Separator}
/>
组件中使用Header