【发布时间】:2020-04-01 13:19:30
【问题描述】:
这里是第一个问题。
当我尝试运行它时,它确实在 response.data 中获取数据,但该数据未设置为作为道具传递到另一个页面的状态,并且它始终保持 [Object object] 或 [undefined] &我不知道出了什么问题
state = {
APiData: {},
userInput: "cheese",
onCall: false
}
findFood = () => {
let self = this;
let userInput = this.state.userInput.toLowerCase();
let url = "https://api.spoonacular.com/recipes/search?query=" + userInput + "&number=1&apiKey="+apiKey;
axios.get(url)
.then(function (response) {
console.log(response.data); //get's data
self.setState({APIdata: response.data});
})
.catch(function (error) {
console.log(error)
});
}
renderbody = () => {
console.log(this.state.APIdata) //this thing, is undefined
// return (<SearchBody data={this.state.APIdata} key={apiKey}/>)
}
这是 response.data 中的数据
"baseUri": "https://spoonacular.com/recipeImages/",
"expires": 1585843318293,
"isStale": false,
"number": 1,
"offset": 0,
"processingTimeMs": 437,
"results": Array [
Object {
"id": 215435,
"image": "three-cheese-pizza-for-cheese-lovers-215435.jpg",
"imageUrls": Array [
"three-cheese-pizza-for-cheese-lovers-215435.jpg",
],
"readyInMinutes": 45,
"servings": 8,
"title": "Three-Cheese Pizza (For Cheese Lovers)",
},
],
"totalResults": 855,
}
Object {
"baseUri": "https://spoonacular.com/recipeImages/",
"expires": 1585843318293,
"isStale": false,
"number": 1,
"offset": 0,
"processingTimeMs": 437,
"results": Array [
Object {
"id": 215435,
"image": "three-cheese-pizza-for-cheese-lovers-215435.jpg",
"imageUrls": Array [
"three-cheese-pizza-for-cheese-lovers-215435.jpg",
],
"readyInMinutes": 45,
"servings": 8,
"title": "Three-Cheese Pizza (For Cheese Lovers)",
},
],
"totalResults": 855,
}
【问题讨论】:
-
对于
undefined的情况,您需要添加一些代码来处理它,因为您调用的api 并不总是能满足您的要求。所以对于response.data这部分,首先尝试检查它是否是undefined,如果有意义就给它默认值
标签: react-native axios