team2_nc/assets/Scripts/UI/TaskWindow/TaskWindow.ts

import { _decorator, Component, Prefab, UITransform, instantiate } from 'cc';
import { IFDataSource, InfiniteList } from '../../core/InfiniteList/InfiniteList';
import { Http } from '../../core/net/Http';
import { BitmapFont } from '../../core/ui/BitmapFont';
import { Utils } from '../../core/utils/Utils';
import { TaskActive } from './TaskActive';
import { TaskWindowItem } from './TaskWindowItem';
const { ccclass, property } = _decorator;

@ccclass('TaskWindow')
export class TaskWindow extends Component implements IFDataSource {
    @property({ type: BitmapFont, tooltip: "倒计时文本" }) countDownLabel: BitmapFont;
    @property({ type: InfiniteList, tooltip: "任务列表" }) list: InfiniteList;
    @property({ type: Prefab, tooltip: "Item预制体" }) item: Prefab;
    @property({ tooltip: "网络请求对象", type: Http }) http: Http;
    @property({ type: TaskActive, tooltip: "活跃度脚本" }) taskActive: TaskActive;

    private endTime = 0;
    private prefabHeight: number = 0;
    private taskData = [];
    async start() {
        this.endTime = new Date().setHours(24, 0, 0, 0);
        let prefab = instantiate(this.item);
        this.prefabHeight = prefab.getComponent(UITransform).height;
        prefab.destroy();

        this.list.Init(this);
        await this.reloadList();
    }

    public async reloadList() {
        this.taskData = [];
        let result = await this.http.send("/api/task/taskList");
        if (result.code == 0) {
            this.taskActive.setData(result.data.active);
            for (let i = result.data.taskList.length - 1; i >= 0; i--) {
                let obj = { data: result.data.taskList[i], window: this }
                if (result.data.taskList[i].progress > result.data.taskList[i].num) {
                    this.taskData.push(obj);
                } else {
                    this.taskData.unshift(obj);
                }
            }
            this.list.Reload(true);
        }
    }

    update() {
        if (this.countDownLabel.string != Utils.formatCountDown(this.endTime - Date.now())) {
            this.countDownLabel.string = Utils.formatCountDown(this.endTime - Date.now());
        }
    }


    //#region  IFDataSource
    public GetCellData(dataIndex: number): any {
        return this.taskData[dataIndex];
    }
    public GetCellNumber(): number {
        return this.taskData.length;
    }
    public GetCellSize(index: number): number {
        return this.prefabHeight;
    }
    public GetCellView(index: number): TaskWindowItem {
        let node = instantiate(this.item);
        return node.getComponent(TaskWindowItem);
    }
    public GetCellIdentifer(index: number): string {
        return "taskWindowItem";
    }
    //#endregion
}