如何使用 iPhone SDK 下载文本文件? [英] How to download a text file with iPhone SDK?

问题描述

我是开发基于视图的 iPhone 应用程序的新手，我需要下载这个txt"文件从互联网上删除并将其保存到应用程序的文档文件夹中.谁能简单地告诉我如何做到这一点?txt 文件很小，所以我不会需要任何用户界面对象...

I am sort of new to developing view-based iPhone applications, and I need to download this "txt" file off the internet and save it into the documents folder of the app. Can anyone show me simply how I can do this? The txt file is of a tiny size, so I wouldn't need any User interface objects...

谢谢，

凯文

推荐答案

NSError *err = nil;
NSString *url = [[NSString stringWithFormat:@"http://myurl.com/mypage"] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *myTxtFile = [NSString stringWithContentsOfURL:[NSURL URLWithString:url] encoding:NSUTF8StringEncoding error:&err];
if(err != nil) {
    //HANDLE ERROR HERE
}

然后你可以使用:

[[NSUserDefaults standardUserDefaults] setObject:myTxtFile forKey:@"MyFile"];

并检索它:

NSString *myTxtFile = [[NSUserDefaults standardUserDefaults] stringForKey:@"MyFile"];

更新以反映 Joe 的意见

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