Question

用户退出应用后我们如何恢复下载，而不仅仅是放入后台？

我的代码看起来像这样开始下载，我希望能够在这里确定问题是否可以恢复。

NSMutableURLRequest *nkRequest = [NSMutableURLRequest requestWithURL:url
                                                                 cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData
                                                             timeoutInterval:30.0];
        NKLibrary *library = [NKLibrary sharedLibrary];
        NKIssue *issue = [library addIssueWithName:[downloadInfo objectForKey:kPackageID] date:[NSDate date]];

        [[NKLibrary sharedLibrary] setCurrentlyReadingIssue:[[NKLibrary sharedLibrary] issueWithName:[downloadInfo objectForKey:kPackageID]]];
        NKAssetDownload *asset = [issue addAssetWithRequest:nkRequest];
        [asset setUserInfo:[NSDictionary dictionaryWithObjectsAndKeys:info,@"info", nil]];   
        [asset downloadWithDelegate:self];

Answer 1

嗯，看起来很简单。我正在做的方式（以及Apple似乎如何做）是将以下代码放在AppDelegate方法应用程序中：didFinishLaunchingWithOptions：

// Get the Library
NKLibrary *nkLib = [NKLibrary sharedLibrary];

// Loop through all 'queued' NKAssetDownloads and resume with a delegate
for(NKAssetDownload *asset in [nkLib downloadingAssets])
{
    [asset downloadWithDelegate:yourDownloadDelegate];
}

这应该就是你需要做的一切。在WWDC 2011的第504届会议上简要提到了这一点。该视频和幻灯片是报刊套件的好参考。我强烈建议你观看/阅读。这对我帮助很大。祝你好运！

应用程序关闭后，报亭恢复下载完全

1 个答案: