适用于iOS的Google Drive API下载文件

本文介绍了适用于iOS的Google Drive API下载文件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在使用以下代码下载文件:

I am using this code below for download file:

- (void)downloadFileContentWithService:(GTLServiceDrive *)service file:(GTLDriveFile *)file completionBlock:(void (^)(NSData *, NSError *))completionBlock { if (file.downloadUrl != nil) { GTMHTTPFetcher *fetcher = [service.fetcherService fetcherWithURLString:file.downloadUrl]; [fetcher beginFetchWithCompletionHandler:^(NSData *data, NSError *error) { if (error == nil) { // Success. completionBlock(data, nil); } else { NSLog(@"An error occurred: %@", error); completionBlock(nil, error); } }]; } else { completionBlock(nil, [NSError errorWithDomain:NSURLErrorDomain code:NSURLErrorBadURL userInfo:nil]); }

似乎一切正常，过了一段时间，我从服务器上检索了我的文件.但是文件大小约为250 MB的问题.

Seems everything goes well and after some time I retrieve my file from the server. But the problem that the file size is About 250 MB.

我的问题是，如果文件太大，应用程序将在设备上崩溃.我们需要做一些限制或类似的事情吗?我已经下载了pdf文件.

My question is will app crash on the device if the file size is too big. Do we need to make some restriction or something like this. I have downloaded pdf file.

推荐答案

该应用程序可能会崩溃，因为它在下载到内存期间非常快地增加了内存.您可以直接下载到磁盘上以避免这种情况.似乎您可以使用NSFileHandle * downloadFileHandle; 属性="nofollow"> GTMHTTPFetcher .

The app may crash since it's increasing memory quite fast during downloading into the memory. You can download directly to disk to avoid this. Seems like you can use NSFileHandle *downloadFileHandle; property of GTMHTTPFetcher for this purpose.