我正在尝试从AsyncStorage呈现卡列表。我要做的是从存储中获取所有数据,并根据这些数据创建卡列表。我可以在函数中看到存储数据,但不能返回视图。我就是这么做的。
import {View,AsyncStorage} from "react-native";
import { Container, Header, Content, Card, CardItem, Text, Body, Icon, Fab }
from "native-base";
export default class extends Component{
async _retrieveData(){
const value = await AsyncStorage.getAllKeys();
return value;
};
getAll(){
this._retrieveData()
.then(items =>{
items.map(async (k) => {
await AsyncStorage.getItem(k).then(ok => {
var cards = [];
cards.push(
<Card key="">
<CardItem>
<Body>
<Text>
ok data
</Text>
</Body>
</CardItem>
</Card>
)
return cards;
});
});
})
.catch(err =>{
alert(err);
});
};
render(){
return(
<Container>
<Content padder>
{this.getAll()}
</Content>
</Container>
)
}
}
