idioms/idiom/assets/core/util/TableLoadUtil.ts

import { _decorator, assetManager,JsonAsset} from 'cc';
export default class TableLoadUtil {
    public static  preloadAll(bundleName:string,path:string,callback: Function,util_cb:(string,any)=>void): void {
        assetManager.loadBundle(bundleName, (err, bundle) => {
                if (err) {
                    console.log(err);
                    return;
                }
                bundle.loadDir(path,JsonAsset, function (err, assets:JsonAsset[]) {
                    if (err) {
                        console.log(err);
                        return;
                    }
                    for (let i = 0; i < assets.length; i++) {
                        util_cb?.(assets[i].name,assets[i].json);
                    }
                    callback(assets);
                }.bind(this));
        });
    }

}