team2_fs/assets/Scripts/Launch/AppUpdate.ts

import { _decorator, Component, ProgressBar } from 'cc';
import { Http } from '../core/net/Http';
import { BitmapFont } from '../core/ui/BitmapFont';
import { Utils } from '../core/utils/Utils';
import { g } from '../Data/g';
import { platform } from '../Data/platform';
const { ccclass, property } = _decorator;

@ccclass('AppUpdate')
export class AppUpdate extends Component {
    @property({ tooltip: "网络请求对象", type: Http })
    public http: Http;
    @property({ type: ProgressBar, tooltip: "加载进度条组件" })
    public progressBar: ProgressBar;
    @property({ type: BitmapFont, tooltip: "加载进度" })
    loadProgressBitmapFont: BitmapFont;
    public versionIsNew: number = -1;
    public async checkNativeVersion(version: string) {
        let versionData = await this.http.send("/version", { game: "fixmix-fs", channel: g.deviceData.channel });
        if (versionData.code == 0) {
            this.versionIsNew = Utils.compareVersion(version, versionData.data.version);
            console.log("是否是最新" + this.versionIsNew);
            this.versionIsNew == -1 && this.downloadAPK(versionData.data.apk);//如果版本较老则下载APK
        }
    }
    public downloadAPK(url: string) {
        g.deviceData.apkDownloading = true;
        platform.downloadAPK(url, "mix-fs.apk");
    }
    public setDownloadAPKProgress() {
        //根据APK下载进度设置UI
        this.progressBar.progress = g.deviceData.downloadAPKProgress;
        // this.loadProgressBitmapFont.string = Math.floor(g.deviceData.downloadAPKProgress / totalCount * 100) + '%'
    }
}