问题描述
export default function App() {
const [hasPermission,setHasPermission] = useState(null);
const [scanned,setScanned] = useState(false);
const [data,setData] = useState("");
useEffect(() => {
(async () => {
const { status } = await BarCodeScanner.requestPermissionsAsync();
setHasPermission(status === "granted");
})();
},[]);
const handleBarCodeScanned = ({ data }) => {
setScanned(true);
alert(`Bar code with data ${data} has been scanned!`);
axios
.get(
`https://api.edamam.com/api/food-database/v2/parser?ingr=${data}&app_id=2626c70d&app_key=0c0f87ae4e5437621363ecf8e7ea80ae&page=20`
)
.then((res) => {
setData(console.log(res.data.hints));
})
.catch((error) => {
console.log(error.response.data);
});
};
if (hasPermission === null) {
return <Text>Requesting for camera permission</Text>;
}
if (hasPermission === false) {
return <Text>No access to camera</Text>;
}
return (
<View style={styles.container}>
<BarCodeScanner
onBarCodeScanned={scanned ? undefined : handleBarCodeScanned}
style={StyleSheet.absoluteFillObject}
/>
<Text>{data}</Text>
</View>
);
}
您好,此应用的目标是让用户扫描条形码并从数据库中挑选食物,我正在尝试使用 axios
和 upc
代码获取数据使用 Barcode Scanner
,目前当我运行代码时,它给了我这个错误:Objects are not valid as a React child (found: object with keys {data}). If you meant to render a collection of children,use an array instead.
API 文档链接:https://developer.edamam.com/food-database-api-docs 条码扫描器文档链接:https://docs.expo.io/versions/latest/sdk/bar-code-scanner/
解决方法
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