在查看Iphone SDK之前先下载视频 [英] Download video before view Iphone sdk

问题描述

我正在开发一个需要播放一些视频的应用程序. 但是，我不想将视频与应用程序打包在一起.相反，我想在NSDocumentDirectory中下载视频，然后使用MPMoviePlayerController从那里播放.

I am developing an application that requires to play some video. However I do not want to pack the videos with application. Instead I would like to download videos in the NSDocumentDirectory and then play from there using MPMoviePlayerController.

任何人，我怎么能从URL下载视频?

Anybody any Idea how could I download the video from a url?

感谢， 吉济姆

推荐答案

尝试以下方法:

NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setHTTPMethod:@"GET"];
NSError *error;
NSURLResponse *response;

NSString *documentFolderPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSString *videosFolderPath = [documentFolderPath stringByAppendingPathComponent:@"videos"]; 

//Check if the videos folder already exists, if not, create it!!!
BOOL isDir;
if (([fileManager fileExistsAtPath:videosFolderPath isDirectory:&isDir] && isDir) == FALSE) {
    [[NSFileManager defaultManager] createDirectoryAtPath:videosFolderPath attributes:nil];
}


NSData *urlData;
NSString *downloadPath = @"http://foo.com/videos/bar.mpeg";
[request setURL:[NSURL URLWithString:downloadPath]];
urlData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *filePath = [videosFolderPath stringByAppendingPathComponent:@"bar.mpeg"];
BOOL written = [urlData writeToFile:filePath atomically:NO];
if (written)
    NSLog(@"Saved to file: %@", filePath);

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