我對 Flatlist 有一個奇怪的問題，當我向下滾動時，我從 API 獲取了數據，我增加了頁面 +1，在頁腳中，我渲染了一個微調器，但是當最后一頁 == 當前頁面時，這意味著除了微調器沒有數據來卡在底部，盡管我將其更新為假！那么這里有什么問題！順便說一句，當我在 FlatList 中以這種方式調用 renderFooterListFooterComponent={()=> this._renderFooter()} // it disappeare the bottom spiner if last page == current page but I have an unexpected re-rendering and app laggay and in some time spinner disappeared even I scrolling to bottom!!代碼class LastSongs extends React.PureComponent {  constructor() {    super();    this.state = {      songs: [],      loading: false,      page: 1,      last_page: 1,    };    this.isCancelled = false;  }  manipulateArray = async (array) => {    let songs = [];    array.map((track) =>      songs.push({        id: track.id,        name: track.name,        url: URL + track.sounds,        img: URL + track.avatar,      }),    );    return songs;  };  getData = async () => {    try {      this.setState({loading: true});      let response = await API.get(`/tracks?page=${this.state.page}`);      let lastPage = response.data.data.items.last_page;      let {        data: {          data: {            items: {data},          },        },      } = response;      let All_Songs = await this.manipulateArray(data);      this.setState({        songs: this.state.songs.concat(All_Songs),        last_page: lastPage,      });    } catch (err) {      console.log('err', err);    }  };  _renderItems = ({item, index}) => (    <TouchableNativeFeed      key={item.id}      onPress={() => {        this.props.saveSongs(this.state.songs, index);        this.props.isPlaying(true);        this.props.isPauseTrigger(!this.props.isPauseTrigger);      }}  );