team2_jj/assets/scripts/launch/NativeUpdate.ts

import { _decorator, Component, ProgressBar } from 'cc';
import { JSB } from 'cc/env';
import { DataSystem } from '../core/data/DataSystem';
import { Http } from '../core/net/Http';
import { WindowSystem } from '../core/ui/window/WindowSystem';
import { Utils } from '../core/utils/Utils';
import { ConfigData } from '../data/ConfigData';
import { g } from '../data/g';
import { DeviceData } from '../data/jsb/DeviceData';
import { ISJSB, platform } from '../data/jsb/platform';
const { ccclass, property, requireComponent } = _decorator;
/**
 * 应用更新
 * @author 袁浩
 */
@ccclass('NativeUpdate')
@requireComponent(Http)
export class NativeUpdate extends Component {
    @property({ type: ProgressBar, tooltip: "加载进度条组件" })
    public progressBar: ProgressBar;
    @property({ tooltip: "游戏名" })
    public gameName: string = "td-jj";
    public async checkNativeVersion(version: string) {
        let deviceData = DataSystem.getData(DeviceData);
        let versionData = await this.getComponent(Http).send("/version", { game: this.gameName, channel: g.deviceData.channel });
        if (versionData && versionData.code == 0) {
            deviceData.versionIsNew = Utils.compareVersion(version, versionData.data.version);
            console.log("是否是最新" + deviceData.versionIsNew);
            deviceData.versionIsNew == -1 && this.downloadAPK(versionData.data.apk);//如果版本较老则下载APK
        }
        else {
            WindowSystem.showTips("服务器连接失败，请检查网络");
        }
    }
    public downloadAPK(url: string) {
        g.deviceData.apkDownloading = true;
        platform.downloadAPK(url, this.gameName + ".apk");
    }
    public setDownloadAPKProgress() {
        //根据APK下载进度设置UI
        this.progressBar.progress = g.deviceData.downloadAPKProgress;
    }
    update() {
        if (DataSystem.getData(ConfigData).loaded && ISJSB()) {
            let deviceData = DataSystem.getData(DeviceData);
            if (DataSystem.watch(DeviceData, "channel")) {//如果拿到渠道和版本号
                this.checkNativeVersion(deviceData.version);
            }
            if (deviceData.apkDownloading) {//如果apk正在下载，因为watch只会执行一次，所以这里使用属性
                this.setDownloadAPKProgress();
            }
        }
    }
}