[英]State change isn't re-rendering component after axios data fetch in react-redux useSelector()
[英]not component rendering after animation ( fetch data ) in react
我正在做一个星球大战项目。 捕获数据时添加了动画。 但是,一旦提取数据,该组件将不会再次呈现。 连续动画保持活动状态。 我想念什么? 提前谢谢大家,晚上好。
注意:此github项目链接为: https : //github.com/kasim444/Javascript-Camp-2019/tree/master/challenges/star-wars-app 。
最后,如果有我的发展,我愿意接受您的建议。
class MovieDetails extends Component {
state = {
title:null,
episode_id:null,
opening_crawl:null,
director:null,
producer:null,
release_date:null,
characters:[],
loading:true,
};
async componentDidMount() {
const titleSearch = this.props.match.params.title;
let characterNames = [];
const movieDetail = await axios.get(`https://swapi.co/api/films/?search=${encodeURI(titleSearch)}`);
const charactersFetchLinks = movieDetail.data.results[0].characters.slice(0, 10);
const promisesData = await charactersFetchLinks.map( link => axios.get(link) );
axios.all(promisesData).then(value => {
value.map(val => characterNames.push(val.data.name) );
const {title, episode_id, opening_crawl, director, producer, release_date} = movieDetail.data.results[0];
this.setState({ title, episode_id, opening_crawl, director, producer, release_date, characters: characterNames, loading: false });
});
}
render() {
const movieId = this.state.episode_id;
const loading = this.state;
return (
loading ?
<Loading /> :
<div>
<main className="movieBg">
<DetailHeader imgLink={moviesImageLinks[movieId-1]} />
<MovieContent imgLink={moviesImageLinks[movieId-1]} movieInfo={this.state} />
</main>
<FeaturedMovies />
</div>
);
}
}
export default MovieDetails;
您没有正确地分解属性。
const movieId = this.state.episode_id;
const loading = this.state;
应该:
const { episode_id, loading } = this.state
由于状态始终是定义的,因此加载将始终为true。
您可以更换
const loading = this.state;
通过:
const loading = this.state.loading;
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