用asihttprequest下载/检索pdf [英] Download / retrieve pdf with asihttprequest

问题描述

我正在尝试使用此功能将iPad内容中的内容下载到本地文件系统（cachedDir？）
中：

I'm trying to download content with an URL to a local file system in my iPad (cachedDir ? ) with this function:

- (IBAction)download:(id)sender {

NSURL *url = [NSURL URLWithString:@"http:www.google.de"];

ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
[request setDelegate:self];
[request startAsynchronous];
[request setDownloadDestinationPath:@"/Users/ben/Desktop/my_file.pdf"]; // Which //directory??

}

如果我的路径我必须选择哪个目录想要尽可能长时间地存储数据，而不会被Apple拒绝，
，如何检索我保存的数据？

Which directory do I have to choose for my path if I want to store the data as long as possible without getting rejected by Apple, and how do I retrieve the data I've saved?

有人可以帮忙吗？

推荐答案

存储文件的最佳位置是您的应用程序的文档。您可以这样找到路径：

The best place to store documents that you want to keep around is your application's Documents directly. You can find the path to it like so:

// Returns the URL to the application's Documents directory.
- (NSURL *)applicationDocumentsDirectory
{
    return [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
}

苹果有一个关于iOS文件系统的文档，特定类型的文件： http：//开发人员.apple.com / library / mac /＃documentation / FileManagement / Conceptual / FileSystemProgrammingGUide / FileSystemOverview / FileSystemOverview.html

Apple have a useful piece of documentation about the iOS file system and where to store particular types of files: http://developer.apple.com/library/mac/#documentation/FileManagement/Conceptual/FileSystemProgrammingGUide/FileSystemOverview/FileSystemOverview.html

这篇关于用asihttprequest下载/检索pdf的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！