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我在YouTube 文档中进行了搜索,但没有发现任何东西可以从 YouTube 视频中获取其他频道名称。

那是,

我目前想从视频中获取频道名称,我只有 URL,如何获取频道名称?

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3 回答 3

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您可以使用YouTube Data API v3轻松完成此操作。

URL 中“ http://www.youtube.com/watch?v= ”之后的最新部分是您的 VIDEO_ID。

只需使用设置 part="snippet"制作视频-> 列表。然后您可以在响应中获取snippet.channelId

请求将是:

获取https://www.googleapis.com/youtube/v3/videos?part=snippet&id=EhNWzcUqGbI&key= {YOUR_API_KEY}

以你为例。

您可以随时使用API explorer尝试这些。

很棒的示例代码可以帮助您入门。

于 2013-07-23T17:52:49.507 回答
5

您可以从 URL 中提取视频 ID,然后发出 HTTP GET 请求:

https://gdata.youtube.com/feeds/api/videos/dQw4w9WgXcQ?v=2&alt=json

dQw4w9WgXcQ您感兴趣的视频 ID 在哪里。这将返回 JSON 响应,并在author字段中包含频道名称(单击链接以获取示例)。

有关更多信息,请参阅检索单个视频的数据和 YouTube API 文档的其余部分。

请参阅例如如何使用正则表达式在字符串中查找所有 YouTube 视频 ID?有关从 YouTube URL 获取视频 ID 的一些方法。

于 2013-07-23T10:11:35.723 回答
2

对于迷路的新手:考虑一个示例函数,该函数将有助于理解获取、解析、显示等的整个周期,并将 youtube 频道的视频专门带到您的 tableview 中。我没有在这里写 tableview 部分

    -(void)initiateRequestToYoutubeApiAndGetChannelInfo
{
NSString * urlYouCanUseAsSample = @"https://www.googleapis.com/youtube/v3/search?key={YOUR_API_KEY_WITHOUT_CURLY_BRACES}&channelId={CHANNEL_ID_YOU_CAN_GET_FROM_ADDRESS_BAR_WITHOUT_CURLY_BRACES}&part=snippet,id&order=date&maxResults=20";



NSURL *url = [[NSURL alloc] initWithString: urlYouCanUseAsSample];

// Create your request
NSURLRequest *request = [NSURLRequest requestWithURL:url];



  // Send the request asynchronously remember to reload tableview on global thread
[NSURLConnection sendAsynchronousRequest:request queue:[[NSOperationQueue alloc] init] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {

    // Callback, parse the data and check for errors
    if (data && !connectionError) {
        NSError *jsonError;

        NSDictionary *jsonResult = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:&jsonError];

        if (!jsonError) {
        // better put a breakpoint here to see what is the result and how it is brought to you. Channel id name etc info should be there

            NSLog(@"%@",jsonResult);

        /// separating "items" dictionary and making array

            // 
    id keyValuePairDict = jsonResult;
    NSMutableArray * itemList = keyValuePairDict[@"items"];
            for (int i = 0; i< itemList.count; i++) {


        /// separating VIDEO ID dictionary from items dictionary and string video id
            id v_id0 = itemList[i];
            NSDictionary * vid_id = v_id0[@"id"];
            id v_id = vid_id;
            NSString * video_ID = v_id[@"videoId"];

       //you can fill your local array for video ids at this point

           //     [video_IDS addObject:video_ID];

        /// separating snippet dictionary from itemlist array
            id snippet = itemList[i];
            NSDictionary * snip = snippet[@"snippet"];

        /// separating TITLE and DESCRIPTION from snippet dictionary
            id title = snip;
            NSString * title_For_Video = title[@"title"];
            NSString * desc_For_Video = title[@"description"];

    //you can fill your local array for titles & desc at this point 

              //  [video_titles addObject:title_For_Video];
               // [video_description addObject:desc_For_Video];




        /// separating thumbnail dictionary from snippet dictionary

            id tnail = snip;
            NSDictionary * thumbnail_ = tnail[@"thumbnails"];

        /// separating highresolution url dictionary from thumbnail dictionary

            id highRes = thumbnail_;
            NSDictionary * high_res = highRes[@"high"];

        /// separating HIGH RES THUMBNAIL IMG URL from high res dictionary

            id url_for_tnail = high_res;
            NSString * thumbnail_url = url_for_tnail[@"url"];
   //you can fill your local array for titles & desc at this point

                [video_thumbnail_url addObject:thumbnail_url];


            }
         // reload your tableview on main thread   
    //[self.tableView    performSelectorOnMainThread:@selector(reloadData) withObject:nil waitUntilDone:NO];
     performSelectorOnMainThread:@selector(reloadInputViews) withObject:nil waitUntilDone:NO];


      // you can log all local arrays for convenience
         //   NSLog(@"%@",video_IDS);
          //  NSLog(@"%@",video_titles);
          //  NSLog(@"%@",video_description);
          //  NSLog(@"%@",video_thumbnail_url);
        }
        else
        {
            NSLog(@"an error occurred");
        }
    }
}];

}
于 2016-05-02T12:08:15.493 回答