{"id":41993,"date":"2025-06-06T03:03:10","date_gmt":"2025-06-05T19:03:10","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/41993.html"},"modified":"2025-06-06T03:03:10","modified_gmt":"2025-06-05T19:03:10","slug":"harmonynext%e4%bd%bf%e7%94%a8request-agent-download%e5%ae%9e%e7%8e%b0%e6%96%ad%e7%82%b9%e4%b8%8b%e8%bd%bd","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/41993.html","title":{"rendered":"HarmonyNext\u4f7f\u7528request.agent.download\u5b9e\u73b0\u65ad\u70b9\u4e0b\u8f7d"},"content":{"rendered":"

filedownlaod(API12)<\/h4>\n

📚\u7b80\u4ecb<\/h4>\n

filedownload \u8fd9\u662f\u4e00\u6b3e\u652f\u6301\u5927\u6587\u4ef6\u65ad\u70b9\u4e0b\u8f7d\u7684\u5f00\u6e90\u63d2\u4ef6，\u9000\u51fa\u5e94\u7528\u7a0b\u5e8f\u8fdb\u7a0b\u6740\u6389\u4ee5\u540e\u6216\u65e0\u7f51\u7edc\u60c5\u51b5\u4e0b\u6062\u590d\u7f51\u7edc\u540e，\u53ef\u4ee5\u5728\u4e0a\u6b21\u4f4d\u7f6e\u7ee7\u7eed\u6062\u590d\u4e0b\u8f7d\u7b49<\/p>\n

\u7248\u672c\u66f4\u65b0\u2014\u8bf7\u67e5\u770b\u66f4\u65b0\u65e5\u5fd7!!! \u4fee\u590d\u5df2\u77e5bug,demo\u5df2\u7ecf\u66f4\u65b0<\/p>\n

📚\u4e0b\u8f7d\u5b89\u88c5<\/h4>\n

ohpm install @ohos_lib\/filedownload<\/p>\n

1\u3001\u6dfb\u52a0\u6743\u9650\u5728\u5e94\u7528\u4e3b\u6a21\u5757entry\/src\/main\/ets\/module.json5\u4e0b<\/p>\n

"requestPermissions"<\/span>:<\/span> [<\/span>
\n {<\/span>
\n "name"<\/span> :<\/span> "ohos.permission.INTERNET"<\/span>
\n }<\/span>,<\/span>
\n {<\/span>
\n "name"<\/span> :<\/span> "ohos.permission.GET_NETWORK_INFO"<\/span>
\n }<\/span>,<\/span>
\n ]<\/span><\/p>\n

2\u3001\u5728\u5e94\u7528\u4e3b\u6a21\u5757entry\u5165\u53e3EntryAbility onCreate\u751f\u547d\u5468\u671f\u91cc\u4e0b\u9762\u6dfb\u52a0\u521d\u59cb\u5316\u6570\u636e\u5e93\u64cd\u4f5c<\/p>\n

onCreate<\/span>(<\/span>want:<\/span> Want,<\/span> launchParam:<\/span> AbilityConstant.<\/span>LaunchParam)<\/span>:<\/span> void<\/span> {<\/span>
\n this<\/span>.<\/span>context.<\/span>getApplicationContext<\/span>(<\/span>)<\/span>.<\/span>setColorMode<\/span>(<\/span>ConfigurationConstant.<\/span>ColorMode.<\/span>COLOR_MODE_NOT_SET<\/span>)<\/span>;<\/span>
\n hilog.<\/span>info<\/span>(<\/span>DOMAIN<\/span>,<\/span> 'testTag'<\/span>,<\/span> '%{public}s'<\/span>,<\/span> 'Ability onCreate'<\/span>)<\/span>;<\/span>
\n SqliteHelper.<\/span>getInstance<\/span>(<\/span>this<\/span>.<\/span>context)<\/span>.<\/span>initRDB<\/span>(<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

3\u3001\u5728\u5e94\u7528\u4e3b\u6a21\u5757entry\u5165\u53e3Index.ts AboutToAppear()\u751f\u547d\u5468\u671f\u91cc\u6dfb\u52a0\u5982\u4e0b\u4ee3\u7801<\/p>\n

try<\/span> {<\/span>
\n await<\/span> DownloaderUtil.<\/span>persistActiveDownloads<\/span>(<\/span>)<\/span>;<\/span>
\n}<\/span>catch<\/span> (<\/span>e)<\/span> {<\/span>
\n}<\/span><\/p>\n

4.\u9996\u5148\u786e\u5b9a\u670d\u52a1\u5668\u662f\u5426\u652f\u6301\u65ad\u70b9\u4e0b\u8f7d，\u5426\u5219\u901a\u8fc7request.agent.create\u65e0\u6cd5\u5b9e\u73b0\u65ad\u70b9\u4e0b\u8f7d<\/p>\n

curl<\/span> -I<\/span> -H<\/span> "Range: bytes=0-100"<\/span> \u4e0b\u8f7d\u8def\u5f84<\/p>\n

\u51fa\u73b0206 Partial Content \u5c31\u4ee3\u8868\u7740\u670d\u52a1\u5668\u652f\u6301\u65ad\u70b9\u7eed\u4f20\u4e0e\u4e0b\u8f7d \u2014\u5982\u4e0b<\/h5>\n

yanruifeng@<\/span>bogon<\/span><\/span> video %<\/span> curl –<\/span>I<\/span> –<\/span>H<\/span> "Range: bytes=0-100"<\/span> https:<\/span>\/<\/span>\/<\/span>dal–<\/span>video.<\/span>wenzaizhibo.<\/span>com\/<\/span>a6dac8c6371a54477a5692f46ea9698e\/<\/span>6825c7da\/<\/span>00<\/span>–<\/span>x–<\/span>upload\/<\/span>video\/<\/span>205971345_ae77bc38ae8b689a5a534e51b3153c8b_Kg3W8sai.<\/span>mp4<\/p>\n

HTTP<\/span>\/<\/span>1.1<\/span> 206<\/span> Partial Content<\/p>\n

filedownload\u76f8\u5173 API<\/h3>\n\n\u65b9\u6cd5\u4ecb\u7ecd<\/tr>\n\n\n\n\n\n\n\n\n\n\n
persistActiveDownloads()<\/td>\n\u65ad\u70b9\u4e0b\u8f7d\u7684\u4e3b\u8981\u65b9\u6cd5\u300c\u5185\u7f6e\u66f4\u6539\u6570\u636e\u5e93\u72b6\u6001，\u628a\u65ad\u70b9\u524d\u540e\u5b57\u8282\u6570\u7edf\u4e00\u5408\u5e76\u6210\u4e00\u4e2a\u6587\u4ef6\u300d<\/td>\n<\/tr>\n
static async pause(taskId: string):Promise<\/td>\n\u4e0b\u8f7d\u6682\u505c\u65b9\u6cd5\u300c\u5185\u7f6e\u66f4\u6539\u6570\u636e\u5e93\u72b6\u6001\u300d<\/td>\n<\/tr>\n
static async resume(downloadInfo: IFileDownloader):Promise<\/td>\n\u4e0b\u8f7d\u6062\u590d\u65b9\u6cd5 \u300c\u5185\u7f6e\u66f4\u6539\u6570\u636e\u5e93\u72b6\u6001\u300d<\/td>\n<\/tr>\n
static async delete(userId: string, downloadId: string):Promise<\/td>\n\u5220\u9664\u300c\u53d6\u6d88\u4e0b\u8f7d\u300d\u65b9\u6cd5\u300c\u5220\u9664\u6570\u636e\u5e93\u8868\u8bb0\u5f55，\u5220\u9664\u6587\u4ef6\u7cfb\u7edf\u4e0b\u8f7d\u6587\u4ef6\u3001\u300d<\/td>\n<\/tr>\n
static async downloadFile(data: T, isBatchInsertQueue?: boolean)<\/td>\n\u901a\u7528\u4e0b\u8f7d\u65b9\u6cd5<\/td>\n<\/tr>\n
GTNetworkUtil<\/td>\n\u7f51\u7edc\u76f8\u5173\u5de5\u5177\u7c7b \u300c\u76d1\u542c\u6709\u7f51\u3001\u65e0\u7f51\u72b6\u6001\u300d<\/td>\n<\/tr>\n
FileUtil<\/td>\n\u6587\u4ef6\u64cd\u4f5c\u76f8\u5173\u5de5\u5177\u7c7b \u300c\u6c99\u76d2\u6587\u4ef6\u5b58\u50a8\u3001\u5220\u9664\u7b49\u64cd\u4f5c\u300d<\/td>\n<\/tr>\n
SqliteHelper<\/td>\n\u6570\u636e\u5e93\u64cd\u4f5c\u7c7b\u3001\u300c\u589e\u5220\u6539\u67e5\u300d<\/td>\n<\/tr>\n
static addListener(eventName:string,callback:(download:IFileDownloader)=>void)<\/td>\n\u4e0b\u8f7d\u7edf\u4e00\u76d1\u542c\u56de\u8c03\u7c7b\u300c\u8fdb\u5ea6\u76d1\u542c\u3001\u5931\u8d25\u3001\u6062\u590d\u3001\u6210\u529f\u3001\u6682\u505c\u300d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u57fa\u672c\u7528\u6cd5<\/h5>\n

import<\/span> {<\/span> IFileDownloader }<\/span> from<\/span> '@ohos_lib\/filedownload\/src\/main\/ets\/interface\/IFileDownloader'<\/span>;<\/span>
\nimport<\/span> {<\/span>DownloaderUtil,<\/span>DownloadManager,<\/span> NetworkCallback,<\/span> SqliteHelper,<\/span>GTNetworkUtil}<\/span> from<\/span> '@ohos_lib\/filedownload'<\/span>
\nimport<\/span> {<\/span> DownloadStatus }<\/span> from<\/span> '@ohos_lib\/filedownload\/src\/main\/ets\/constants\/DownloadStatus'<\/span>;<\/span>
\nimport<\/span> {<\/span> relationalStore }<\/span> from<\/span> '@kit.ArkData'<\/span>;<\/span>
\nimport<\/span> {<\/span> promptAction,<\/span> router }<\/span> from<\/span> '@kit.ArkUI'<\/span>;<\/span>
\nimport<\/span> {<\/span> IResponseData }<\/span> from<\/span> '..\/interfaces\/IResponseData'<\/span>;<\/span><\/p>\n

@<\/span>Entry<\/span><\/span>
\n@<\/span>ComponentV2<\/span><\/span>
\nstruct SingleFileDownload {<\/span>
\n @<\/span>Local<\/span><\/span> userId:<\/span>string<\/span> =<\/span>'722134343434343434'<\/span>;<\/span>\/\/\u767b\u5f55\u7528\u6237\u4fe1\u606fid \u8fd9\u91cc\u5199\u56dbMock<\/span>
\n private<\/span> networkCallback:<\/span>NetworkCallback=<\/span>{<\/span>
\n netAvailableCallback<\/span>:<\/span> (<\/span>netHandle:<\/span> ESObject)<\/span> =><\/span> {<\/span>
\n promptAction.<\/span>showToast<\/span>(<\/span>{<\/span>
\n message:<\/span>'\u7f51\u7edc\u53ef\u7528~'<\/span>
\n }<\/span>)<\/span>
\n }<\/span>,<\/span>
\n netLostCallback<\/span>:<\/span> (<\/span>_:<\/span> ESObject)<\/span> =><\/span> {<\/span>
\n promptAction.<\/span>showToast<\/span>(<\/span>{<\/span>
\n message:<\/span>'\u7f51\u7edc\u8fde\u63a5\u5df2\u65ad\u5f00，\u8bf7\u68c0\u67e5~'<\/span>
\n }<\/span>)<\/span>
\n \/\/\u65e0\u7f51\u7edc\u60c5\u51b5\u4e0b，\u6062\u590d\u7f51\u7edc\u540e\u7ee7\u7eed\u4fdd\u6301\u5728\u4e0a\u6b21\u4f4d\u7f6e\u4e0b\u8f7d –\u53ea\u9700\u8981\u8c03\u7528\u5982\u4e0b\u4e00\u884c\u4ee3\u7801\u5373\u53ef<\/span>
\n \/\/ \u672c\u8d28\u903b\u8f91\u5185\u90e8\u8fd8\u662f\u53d1\u9001\u4e86\u4e00\u4e2a\u76d1\u542c，\u7edf\u4e00\u5728DownloadManager.addListener\u76d1\u542c\u5904\u7406<\/span>
\n DownloaderUtil.<\/span>persistActiveDownloads<\/span>(<\/span>)<\/span>
\n }<\/span>
\n }<\/span>
\n @<\/span>Local<\/span><\/span> data:<\/span> IResponseData[<\/span>]<\/span> =<\/span> [<\/span>]<\/span>;<\/span>
\n async<\/span> aboutToAppear<\/span>(<\/span>)<\/span> {<\/span>
\n this<\/span>.<\/span>loadData<\/span>(<\/span>)<\/span>;<\/span>
\n getContext<\/span>(<\/span>)<\/span>.<\/span>eventHub.<\/span>on<\/span>(<\/span>'reQuery'<\/span>,<\/span>(<\/span>)<\/span>=><\/span>{<\/span>
\n this<\/span>.<\/span>loadData<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span>)<\/span>
\n DownloadManager.<\/span>addListener<\/span>(<\/span>DownloadManager.<\/span>eventName,<\/span>(<\/span>downloadInfo:<\/span>IFileDownloader)<\/span>=><\/span>{<\/span>
\n console<\/span>.<\/span>log<\/span>(<\/span>'\u66f4\u65b0\u56de\u8c03'<\/span>,<\/span>downloadInfo.<\/span>downloadSize)<\/span>
\n \/\/\u8fdb\u5ea6\u76d1\u542c\u66f4\u65b0\u56de\u8c03<\/span>
\n let<\/span> newData =<\/span> this<\/span>.<\/span>data?.<\/span>map<\/span>(<\/span>(<\/span>item)<\/span>=><\/span>{<\/span>
\n if<\/span>(<\/span>item.<\/span>downloadId===<\/span>downloadInfo.<\/span>downloadId)<\/span>{<\/span>
\n item.<\/span>taskId =<\/span> downloadInfo.<\/span>taskId;<\/span>
\n item.<\/span>filePath =<\/span> downloadInfo.<\/span>filePath;<\/span>
\n item.<\/span>fileName =<\/span>downloadInfo.<\/span>fileName;<\/span>
\n item.<\/span>downloadSize =<\/span> downloadInfo.<\/span>downloadSize;<\/span>
\n item.<\/span>fileSize =<\/span> downloadInfo.<\/span>fileSize;<\/span>
\n item.<\/span>isBackgroundPause =<\/span>downloadInfo.<\/span>isBackgroundPause;<\/span>
\n item.<\/span>exitFrequency =<\/span> downloadInfo.<\/span>exitFrequency;<\/span>
\n item.<\/span>status =<\/span> downloadInfo.<\/span>status;<\/span>
\n item.<\/span>begins =<\/span> downloadInfo.<\/span>begins;<\/span>
\n return<\/span> item;<\/span>
\n }<\/span>
\n return<\/span> item;<\/span>
\n }<\/span>)<\/span>
\n this<\/span>.<\/span>data =<\/span>newData;<\/span>
\n }<\/span>)<\/span>
\n \/\/\u5b8c\u5584\u5728\u65e0\u7f51\u7edc\u60c5\u51b5\u4e0b，\u4e0b\u8f7d\u4efb\u52a1\u6682\u505c，\u5e76\u4e14\u6062\u590d\u7f51\u7edc\u540e\u7ee7\u7eed\u4e0b\u8f7d<\/span>
\n GTNetworkUtil.<\/span>register<\/span>(<\/span>this<\/span>.<\/span>networkCallback)<\/span>
\n }<\/span>
\n \/\/TODO tips: \u4e0b\u8f7d\u5931\u8d25，\u9996\u5148\u68c0\u67e5url\u662f\u5426\u53ef\u4ee5\u6b63\u5e38\u8bbf\u95ee，\u6216\u8005\u6d4f\u89c8\u5668\u662f\u5426\u53ef\u4ee5\u6b63\u5e38\u5728\u7ebf\u4e0b\u8f7d<\/span>
\n async<\/span> loadData<\/span>(<\/span>)<\/span>{<\/span>
\n \/\/ TODO \u5047\u8bbe\u4ece\u7f51\u7edc\u83b7\u53d6\u6570\u636e\u6570\u636e\u7ed3\u6784\u4e3a: response=[{classNumber:'76432121445578293',className:'\u7b2c\u4e00\u7ae0 \u7b2c\u4e00\u8bb2：At the Airport\u5728\u673a\u573a'}]<\/span>
\n \/\/\u8f6c\u6362\u6570\u636e\u7ed3\u6784response\u65f6\u63a5\u53e3\u7c7b\u578b\u5fc5\u987b\u8981\u7ee7\u627f extends IFileDownloader IFileDownloader\u63a5\u53e3\u7c7b\u578b\u521d\u59cb\u5316\u81f3\u5c11\u5305\u542b\u4e09\u4e2a\u5b57\u6bb5userId ,downloadId,url userId\u767b\u5f55\u7528\u6237\u7684userId<\/span>
\n \/\/\u56e0\u6b64extends IFileDownloader\u8fc7\u7684IResponseData\u63a5\u53e3\u7c7b\u578b \u5bf9\u5e94\u8f6c\u6362\u540e\u7684\u6570\u636e\u5982\u4e0b\u6240\u793a<\/span>
\n let<\/span> result:<\/span>IResponseData[<\/span>]<\/span> =<\/span>[<\/span>{<\/span>classNumber:<\/span>'76432121445578293'<\/span>,<\/span>downloadId:<\/span>'76432121445578293'<\/span>,<\/span>
\n className:<\/span>'\u7b2c\u4e00\u7ae0 \u7b2c\u4e00\u8bb2：At the Airport\u5728\u673a\u573a'<\/span>,<\/span>
\n "url"<\/span>:<\/span> "http:\/\/dal-video.wenzaizhibo.com\/13c7d34a1181dddad67cfbe387977842\/6836c525\/00-x-upload\/video\/209245033_3aaf16a38aff214594fffec92839d37e_n8kGbGC8.mp4"<\/span>,<\/span> userId:<\/span>this<\/span>.<\/span>userId
\n }<\/span>]<\/span>
\n \/\/\u4ece\u6570\u636e\u5e93\u8bfb\u53d6\u83b7\u53d6\u4e0a\u6b21\u7684\u4e0b\u8f7d\u8fdb\u5ea6<\/span>
\n let<\/span> predicates =<\/span>new<\/span> relationalStore<\/span>.<\/span>RdbPredicates<\/span>(<\/span>SqliteHelper.<\/span>tableName)<\/span>;<\/span>
\n predicates.<\/span>equalTo<\/span>(<\/span>'userId'<\/span>,<\/span>this<\/span>.<\/span>userId)<\/span>;<\/span>
\n let<\/span> queryList =<\/span> await<\/span> SqliteHelper.<\/span>getInstance<\/span>(<\/span>getContext<\/span>(<\/span>)<\/span>)<\/span>.<\/span>queryData<\/span>(<\/span>predicates)<\/span>;<\/span>
\n if<\/span>(<\/span>queryList.<\/span>length><\/span>0<\/span>)<\/span>{<\/span>
\n let<\/span> newData =<\/span> result.<\/span>map<\/span>(<\/span>(<\/span>item:<\/span>IResponseData)<\/span>=><\/span>{<\/span>
\n let<\/span> obj =<\/span>queryList.<\/span>find<\/span>(<\/span>el=><\/span>el.<\/span>downloadId===<\/span>item.<\/span>downloadId)<\/span>;<\/span>
\n if<\/span>(<\/span>obj)<\/span> {<\/span>
\n item.<\/span>taskId =<\/span> obj.<\/span>taskId;<\/span>
\n item.<\/span>filePath =<\/span> obj.<\/span>filePath;<\/span>
\n item.<\/span>fileName =<\/span>obj.<\/span>fileName;<\/span>
\n item.<\/span>downloadSize =<\/span> obj.<\/span>downloadSize;<\/span>
\n item.<\/span>fileSize =<\/span> obj.<\/span>fileSize;<\/span>
\n item.<\/span>isBackgroundPause =<\/span>obj.<\/span>isBackgroundPause;<\/span>
\n item.<\/span>exitFrequency =<\/span> obj.<\/span>exitFrequency;<\/span>
\n item.<\/span>status =<\/span> obj.<\/span>status;<\/span>
\n item.<\/span>begins =<\/span> obj.<\/span>begins;<\/span>
\n return<\/span> item;<\/span>
\n }<\/span>
\n return<\/span> item;<\/span>
\n }<\/span>)<\/span>
\n this<\/span>.<\/span>data=<\/span> newData;<\/span>
\n }<\/span>else<\/span>{<\/span>
\n this<\/span>.<\/span>data =<\/span> result;<\/span>
\n }<\/span>
\n }<\/span>
\n aboutToDisappear<\/span>(<\/span>)<\/span>:<\/span> void<\/span> {<\/span>
\n GTNetworkUtil.<\/span>unregister<\/span>(<\/span>)<\/span>;<\/span>
\n DownloadManager.<\/span>removeListener<\/span>(<\/span>DownloadManager.<\/span>eventName)<\/span>
\n getContext<\/span>(<\/span>)<\/span>.<\/span>eventHub.<\/span>off<\/span>(<\/span>'reQuery'<\/span>)<\/span>;<\/span>
\n }<\/span>
\n getStatus<\/span>(<\/span>status:<\/span>number<\/span>|<\/span>undefined<\/span>)<\/span>{<\/span>
\n switch<\/span> (<\/span>status)<\/span>{<\/span>
\n case<\/span> DownloadStatus.<\/span>COMPLETED<\/span>:<\/span>
\n return<\/span> '\u4e0b\u8f7d\u5b8c\u6210'<\/span>
\n case<\/span> DownloadStatus.<\/span>PAUSE<\/span>:<\/span>
\n return<\/span> '\u6682\u505c'<\/span>
\n case<\/span> DownloadStatus.<\/span>FAILED<\/span>:<\/span>
\n return<\/span> '\u4e0b\u8f7d\u5931\u8d25'<\/span>
\n case<\/span> DownloadStatus.<\/span>RUNNING<\/span>:<\/span>
\n return<\/span> '\u4e0b\u8f7d\u4e2d'<\/span>
\n default<\/span> :<\/span>
\n return<\/span> '\u4e0b\u8f7d'<\/span>
\n }<\/span>
\n }<\/span>
\n @<\/span>Builder<\/span><\/span> imageAnimator<\/span>(<\/span>item:<\/span>IResponseData)<\/span>{<\/span>
\n ImageAnimator<\/span>(<\/span>)<\/span>
\n .<\/span>images<\/span>(<\/span>[<\/span>
\n {<\/span>
\n src:<\/span> $r<\/span>(<\/span>'app.media.ic_downloading_1'<\/span>)<\/span>
\n }<\/span>,<\/span>
\n {<\/span>
\n src:<\/span> $r<\/span>(<\/span>'app.media.ic_downloading_2'<\/span>)<\/span>
\n }<\/span>,<\/span>
\n {<\/span>
\n src:<\/span> $r<\/span>(<\/span>'app.media.ic_downloading_3'<\/span>)<\/span>
\n }<\/span>,<\/span>
\n {<\/span>
\n src:<\/span> $r<\/span>(<\/span>'app.media.ic_downloading_4'<\/span>)<\/span>
\n }<\/span>,<\/span>
\n {<\/span>
\n src:<\/span> $r<\/span>(<\/span>'app.media.ic_downloading_5'<\/span>)<\/span>
\n }<\/span>
\n ]<\/span>)<\/span>
\n .<\/span>duration<\/span>(<\/span>1000<\/span>)<\/span>
\n .<\/span>state<\/span>(<\/span>item.<\/span>status===<\/span>DownloadStatus.<\/span>RUNNING<\/span>?<\/span>AnimationStatus.<\/span>Running:<\/span>AnimationStatus.<\/span>Initial)<\/span>
\n .<\/span>reverse<\/span>(<\/span>false<\/span>)<\/span>
\n .<\/span>fillMode<\/span>(<\/span>FillMode.<\/span>None)<\/span>
\n .<\/span>iterations<\/span>(<\/span>–<\/span>1<\/span>)<\/span>
\n .<\/span>width<\/span>(<\/span>24<\/span>)<\/span>
\n .<\/span>height<\/span>(<\/span>24<\/span>)<\/span>
\n .<\/span>onStart<\/span>(<\/span>(<\/span>)<\/span> =><\/span> {<\/span>
\n console<\/span>.<\/span>info<\/span>(<\/span>'Start'<\/span>)<\/span>
\n }<\/span>)<\/span>
\n .<\/span>onPause<\/span>(<\/span>(<\/span>)<\/span> =><\/span> {<\/span>
\n console<\/span>.<\/span>info<\/span>(<\/span>'Pause'<\/span>)<\/span>
\n }<\/span>)<\/span>
\n .<\/span>onRepeat<\/span>(<\/span>(<\/span>)<\/span> =><\/span> {<\/span>
\n console<\/span>.<\/span>info<\/span>(<\/span>'Repeat'<\/span>)<\/span>
\n }<\/span>)<\/span>
\n .<\/span>onCancel<\/span>(<\/span>(<\/span>)<\/span> =><\/span> {<\/span>
\n console<\/span>.<\/span>info<\/span>(<\/span>'Cancel'<\/span>)<\/span>
\n }<\/span>)<\/span>
\n .<\/span>onFinish<\/span>(<\/span>(<\/span>)<\/span> =><\/span> {<\/span>
\n console<\/span>.<\/span>info<\/span>(<\/span>'Finish'<\/span>)<\/span>
\n }<\/span>)<\/span>
\n }<\/span>
\n build<\/span>(<\/span>)<\/span> {<\/span>
\n Column<\/span>(<\/span>)<\/span> {<\/span>
\n Stack<\/span>(<\/span>{<\/span>alignContent:<\/span>Alignment.<\/span>TopStart}<\/span>)<\/span>{<\/span>
\n ForEach<\/span>(<\/span>this<\/span>.<\/span>data,<\/span>(<\/span>item:<\/span>IResponseData)<\/span>=><\/span>{<\/span>
\n Flex<\/span>(<\/span>{<\/span>
\n direction:<\/span>FlexDirection.<\/span>Row,<\/span>
\n alignItems:<\/span>ItemAlign.<\/span>Center,<\/span>
\n justifyContent:<\/span>FlexAlign.<\/span>SpaceBetween
\n }<\/span>)<\/span> {<\/span>
\n Row<\/span>(<\/span>)<\/span>{<\/span>
\n Text<\/span>(<\/span>item?.<\/span>className)<\/span>.<\/span>fontSize<\/span>(<\/span>16<\/span>)<\/span>.<\/span>fontWeight<\/span>(<\/span>FontWeight.<\/span>Bold)<\/span>
\n }<\/span>.<\/span>layoutWeight<\/span>(<\/span>1<\/span>)<\/span>
\n if<\/span>(<\/span>item.<\/span>status===<\/span>DownloadStatus.<\/span>COMPLETED<\/span>)<\/span>{<\/span>
\n Image<\/span>(<\/span>$r<\/span>(<\/span>'app.media.ic_download_completed'<\/span>)<\/span>)<\/span>.<\/span>width<\/span>(<\/span>24<\/span>)<\/span>.<\/span>height<\/span>(<\/span>24<\/span>)<\/span>
\n }<\/span>else<\/span> if<\/span>(<\/span>item.<\/span>status===<\/span>DownloadStatus.<\/span>RUNNING<\/span>)<\/span> {<\/span>
\n this<\/span>.<\/span>imageAnimator<\/span>(<\/span>item)<\/span>;<\/span>
\n }<\/span>else<\/span> if<\/span>(<\/span>item.<\/span>status===<\/span>DownloadStatus.<\/span>FAILED<\/span>)<\/span>{<\/span>
\n Image<\/span>(<\/span>$r<\/span>(<\/span>'app.media.ic_download_fail'<\/span>)<\/span>)<\/span>.<\/span>width<\/span>(<\/span>24<\/span>)<\/span>.<\/span>height<\/span>(<\/span>24<\/span>)<\/span>
\n }<\/span>else<\/span> if<\/span>(<\/span>item.<\/span>status===<\/span>DownloadStatus.<\/span>PAUSE<\/span>)<\/span>{<\/span>
\n Image<\/span>(<\/span>$r<\/span>(<\/span>'app.media.ic_download_start'<\/span>)<\/span>)<\/span>.<\/span>width<\/span>(<\/span>24<\/span>)<\/span>.<\/span>height<\/span>(<\/span>24<\/span>)<\/span>
\n }<\/span>
\n }<\/span>.<\/span>width<\/span>(<\/span>'100%'<\/span>)<\/span>
\n .<\/span>height<\/span>(<\/span>44<\/span>)<\/span>
\n .<\/span>onClick<\/span>(<\/span>async<\/span> (<\/span>)<\/span>=><\/span>{<\/span>
\n if<\/span> (<\/span>item?.<\/span>status ===<\/span> DownloadStatus.<\/span>RUNNING<\/span>)<\/span> {<\/span> \/\/\u4e0b\u8f7d\u4e2d—->\u70b9\u51fb\u89e6\u53d1\u53d6\u6d88\u4e0b\u8f7d\u3010\u5220\u9664\u4e0b\u8f7d\u3011<\/span>
\n let<\/span> number<\/span> =<\/span> await<\/span> DownloaderUtil.<\/span>delete<\/span>(<\/span>item.<\/span>userId,<\/span>item.<\/span>downloadId)<\/span>;<\/span>
\n if<\/span>(<\/span>number<\/span>><\/span>0<\/span>)<\/span>{<\/span>
\n this<\/span>.<\/span>loadData<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span>
\n }<\/span> else<\/span> if<\/span> (<\/span>item?.<\/span>status ===<\/span> DownloadStatus.<\/span>FAILED<\/span>)<\/span> {<\/span> \/\/\u4e0b\u8f7d\u5931\u8d25—-> \u91cd\u65b0\u4e0b\u8f7d<\/span>
\n DownloaderUtil.<\/span>downloadFile<\/span>(<\/span>item)<\/span>;<\/span>
\n }<\/span> else<\/span> if<\/span> (<\/span>item?.<\/span>status ===<\/span> DownloadStatus.<\/span>PAUSE<\/span>)<\/span> {<\/span> \/\/\u4e0b\u8f7d\u6682\u505c—–>\u4ee3\u8868\u8981\u6062\u590d\u4e0b\u8f7d<\/span>
\n await<\/span> DownloaderUtil.<\/span>resume<\/span>(<\/span>item)<\/span>;<\/span>
\n }<\/span> else<\/span> if<\/span>(<\/span>item.<\/span>status===<\/span>DownloadStatus.<\/span>COMPLETED<\/span>)<\/span> {<\/span> \/\/\u4e0b\u8f7d\u5b8c\u6210 —->\u53bb\u64ad\u653e<\/span>
\n router.<\/span>pushUrl<\/span>(<\/span>{<\/span>
\n url:<\/span> 'pages\/VideoPlayerPage'<\/span>,<\/span>
\n params:<\/span>{<\/span>url:<\/span>'file:\/\/\/'<\/span>+<\/span>item.<\/span>filePath+<\/span>'\/'<\/span>+<\/span>item.<\/span>fileName,<\/span>}<\/span>
\n }<\/span>)<\/span>
\n }<\/span>else<\/span>{<\/span> \/\/\u672a\u4e0b\u8f7d –>\u53bb\u4e0b\u8f7d<\/span>
\n promptAction.<\/span>showToast<\/span>(<\/span>{<\/span>
\n message:<\/span>'\u5f00\u59cb\u4e0b\u8f7d'<\/span>,<\/span>
\n }<\/span>)<\/span>
\n DownloaderUtil.<\/span>downloadFile<\/span>(<\/span>item)<\/span>;<\/span>
\n }<\/span>
\n }<\/span>)<\/span>
\n .<\/span>padding<\/span>(<\/span>{<\/span>
\n left:<\/span> 16<\/span>,<\/span>
\n right:<\/span> 16<\/span>
\n }<\/span>)<\/span>
\n .<\/span>margin<\/span>(<\/span>{<\/span>
\n top:<\/span> 32<\/span>
\n }<\/span>)<\/span>
\n }<\/span>)<\/span>
\n }<\/span>.<\/span>layoutWeight<\/span>(<\/span>1<\/span>)<\/span>
\n Button<\/span>(<\/span>'\u67e5\u770b\u4e0b\u8f7d'<\/span>)<\/span>.<\/span>type<\/span>(<\/span>ButtonType.<\/span>Capsule)<\/span>.<\/span>onClick<\/span>(<\/span>(<\/span>)<\/span>=><\/span>{<\/span>
\n router.<\/span>pushUrl<\/span>(<\/span>{<\/span>
\n url:<\/span>'pages\/DownloadManagerPage'<\/span>,<\/span>
\n params:<\/span>{<\/span>
\n data:<\/span>this<\/span>.<\/span>data,<\/span>
\n userId:<\/span>this<\/span>.<\/span>userId
\n }<\/span>
\n }<\/span>)<\/span>
\n }<\/span>)<\/span>.<\/span>backgroundColor<\/span>(<\/span>Color.<\/span>Red)<\/span>
\n }<\/span>
\n .<\/span>height<\/span>(<\/span>'100%'<\/span>)<\/span>
\n .<\/span>width<\/span>(<\/span>'100%'<\/span>)<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u8fd0\u884cDemo\u6f14\u793a\u6548\u679c<\/h5>\n
    \n
  • demo \u8fd0\u884c git clone https:\/\/github.com\/yrjwcharm\/ohos_library.git<\/li>\n
  • \u5207\u6362\u5206\u652f git checkout feature\/ohos\/fileDownload<\/li>\n<\/ul>\n
    \u4e0b\u8f7d\u89c2\u770bDemo\u6f14\u793a\u6548\u679c\u2013\u9000\u51fa\u5e94\u7528\u7a0b\u5e8f\u6740\u6389\u8fdb\u7a0b\u540e\u6062\u590d\u4e0b\u8f7d<\/h5>\n

    \u70b9\u51fb\u4e0b\u8f7d\u89c6\u9891<\/p>\n

    \u4e0b\u8f7d\u89c2\u770bDemo\u6f14\u793a\u6548\u679c\u2013\u65e0\u7f51\u7edc\u60c5\u51b5\u4e0b\u6062\u590d\u7f51\u7edc\u540e\u7ee7\u7eed\u4fdd\u6301\u4e0b\u8f7d<\/h5>\n

    \u70b9\u51fb\u4e0b\u8f7d\u89c6\u9891<\/p>\n

    \u9e3f\u8499\u6280\u672f\u4ea4\u6d41QQ\u7fa4：783867484<\/h5>\n
    \u5f00\u6e90\u4e0d\u6613，\u5e0c\u671b\u60a8\u53ef\u4ee5\u52a8\u4e00\u52a8\u5c0f\u624b\u70b9\u70b9\u5c0f\u2b50\u2b50<\/h5>\n
    👴\u5e0c\u671b\u5927\u5bb6\u5982\u6709\u597d\u7684\u9700\u6c42\u8e0a\u8dc3\u63d0\u4ea4,\u5982\u6709\u95ee\u9898\u8bf7\u524d\u5f80github\u63d0\u4ea4issue，\u7a7a\u95f2\u65f6\u95f4\u4f1a\u6269\u5145\u4e0e\u4fee\u590d\u4f18\u5316<\/h5>\n

    🌏\u5f00\u6e90\u534f\u8bae<\/h4>\n

    \u672c\u9879\u76ee\u57fa\u4e8e Apache License 2.0 ，\u5728\u62f7\u8d1d\u548c\u501f\u9274\u4ee3\u7801\u65f6，\u8bf7\u5927\u5bb6\u52a1\u5fc5\u6ce8\u660e\u51fa\u5904\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb722\u6b21\uff0c\u70b9\u8d5e5\u6b21\uff0c\u6536\u85cf3\u6b21\u3002filedownload\u8fd9\u662f\u4e00\u6b3e\u652f\u6301\u5927\u6587\u4ef6\u65ad\u70b9\u4e0b\u8f7d\u7684\u5f00\u6e90\u63d2\u4ef6\uff0c\u9000\u51fa\u5e94\u7528\u7a0b\u5e8f\u8fdb\u7a0b\u6740\u6389\u4ee5\u540e\u6216\u65e0\u7f51\u7edc\u60c5\u51b5\u4e0b\u6062\u590d\u7f51\u7edc\u540e\uff0c\u53ef\u4ee5\u5728\u4e0a\u6b21\u4f4d\u7f6e\u7ee7\u7eed\u6062\u590d\u4e0b\u8f7d\u7b49<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3872,3871,1737],"topic":[],"class_list":["post-41993","post","type-post","status-publish","format-standard","hentry","category-server","tag-request-agent","tag-3871","tag-1737"],"yoast_head":"\nHarmonyNext\u4f7f\u7528request.agent.download\u5b9e\u73b0\u65ad\u70b9\u4e0b\u8f7d - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/41993.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HarmonyNext\u4f7f\u7528request.agent.download\u5b9e\u73b0\u65ad\u70b9\u4e0b\u8f7d - 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