52 lines
1.9 KiB
TypeScript
52 lines
1.9 KiB
TypeScript
export class LoadProgress {
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public url: string;
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public completedCount: number;
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public totalCount: number;
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public item: any;
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public cb?: Function;
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}
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export default class ResHelper {
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/** 加载进度 */
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public static loadProgress = new LoadProgress();
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/** 加载资源 */
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public static loadResAsync<T>(url: string, type: typeof cc.Asset, progressCallback?: (completedCount: number, totalCount: number, item: any) => void): Promise<T>{
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if (!url || !type) {
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cc.error("参数错误", url, type);
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return;
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}
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ResHelper.loadProgress.url = url;
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if(progressCallback) {
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this.loadProgress.cb = progressCallback;
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}
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return new Promise((resolve, reject) => {
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//cc.assetManager.downloader.download(url)
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cc.resources.load(url,type,this._progressCallback,function(err,prefab:any){
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if (err) {
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cc.error(`${url} [资源加载] 错误 ${err}`);
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resolve(null);
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}else {
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resolve(prefab);
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}
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// 加载完毕了，清理进度数据
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ResHelper.loadProgress.url = '';
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ResHelper.loadProgress.completedCount = 0;
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ResHelper.loadProgress.totalCount = 0;
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ResHelper.loadProgress.item = null;
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ResHelper.loadProgress.cb = null;
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})
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});
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}
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/**
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* 加载进度
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* cb方法 其实目的是可以将loader方法的progress
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*/
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private static _progressCallback(completedCount: number, totalCount: number, item: any) {
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ResHelper.loadProgress.completedCount = completedCount;
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ResHelper.loadProgress.totalCount = totalCount;
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ResHelper.loadProgress.item = item;
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ResHelper.loadProgress.cb && ResHelper.loadProgress.cb(completedCount, totalCount, item);
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}
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}
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