ios – 如何使用YouTube API V3？

>导航到API Console并为您的iOS应用程序生成一个新的简单API访问键.确保在提供的窗口中输入您的应用程序的包标识符.或者,您可以创建一个Server API密钥,以便使用基本请求进行测试,并从命令行卷曲.
>根据您的需要查找相关终端.要查找有关视频的信息,您需要使用Videos.list方法.

首先,设置你的URL.我将使用此URL作为示例：https://www.youtube.com/watch?v=AKiiekaEHhI

您将要为part参数指定一个值.从您的问题,您似乎想要传递片段,contentDetails和统计值(虽然对于喜欢和视图,您只需要统计值).

然后传入您的视频的ID(在这种情况下,AKiiekaEHhI,最多可以添加50个逗号分隔的ID)和您的API密钥.您的网址应如下所示：

https://www.googleapis.com/youtube/v3/videos?part=contentDetails%2C+snippet%2C+statistics&id=AKiiekaEHhI&key={YOUR_API_KEY}

你也可以在API Explorer这样做.

Swift实施：

// Set up your URL
let youtubeApi = "https://www.googleapis.com/youtube/v3/videos?part=contentDetails%2C+snippet%2C+statistics&id=AKiiekaEHhI&key={YOUR_API_KEY}"
let url = NSURL(string: youtubeApi)

// Create your request
let task = NSURLSession.sharedSession().dataTaskWithURL(url!,completionHandler: { (data,response,error) -> Void in
    do {
        if let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!,options: NSJSONReadingOptions.AllowFragments) as? [String : AnyObject] {

            print("Response from YouTube: \(jsonResult)")
        }
    }
    catch {
        print("json error: \(error)")
    }

})

// Start the request
task.resume()

Objective-C实现：

(此帖子已编辑为支持NSURLSession.对于使用NSURLConnection的实现,请检查编辑历史记录)

// Set up your URL
Nsstring *youtubeApi = @"https://www.googleapis.com/youtube/v3/videos?part=contentDetails%2C+snippet%2C+statistics&id=AKiiekaEHhI&key={YOUR_API_KEY}";
NSURL *url = [[NSURL alloc] initWithString:youtubeApi];

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

// Send the request asynchronously
[[[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData *data,NSURLResponse *response,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) {
            NSLog(@"Response from YouTube: %@",jsonResult);
        }
    }
}] resume];

您的日志将如下所示：

Response from YouTube: {
    etag = "\"NO6QTeg0-3ShswIeqLchQ_mzWJs/AAjIATmVK_8ySsAWwEuNfdZdjW4\"";
    items =     (
                {
            contentDetails =             {
                caption = false;
                deFinition = hd;
                dimension = 2d;
                duration = PT17M30S;
                licensedContent = 1;
            };
            etag = "\"NO6QTeg0-3ShswIeqLchQ_mzWJs/8v8ee5uPZQa1-ucVdjBdAVXzcZk\"";
            id = AKiiekaEHhI;
            kind = "youtube#video";
            snippet =             {
                categoryId = 20;
                channelId = UCkvdZX3SVgfDW8ghtP1L2Ug;
                channelTitle = "Swordless Link";
                description = "Follow me on Twitter! http://twitter.com/swordlesslink\n\nFollow me on TwitchTV for live video game streaming! http://twitch.tv/swordlesslink";
                livebroadcastContent = none;
                localized =                 {
                    description = "Follow me on Twitter! http://twitter.com/swordlesslink\n\nFollow me on TwitchTV for live video game streaming! http://twitch.tv/swordlesslink";
                    title = "The Legend of Zelda: Majora's Mask With Glitches - Part 17: Going Against the Flow";
                };
                publishedAt = "2015-05-04T10:01:43.000Z";
                thumbnails =                 {
                    default =                     {
                        height = 90;
                        url = "https://i.ytimg.com/vi/AKiiekaEHhI/default.jpg";
                        width = 120;
                    };
                    high =                     {
                        height = 360;
                        url = "https://i.ytimg.com/vi/AKiiekaEHhI/hqdefault.jpg";
                        width = 480;
                    };
                    medium =                     {
                        height = 180;
                        url = "https://i.ytimg.com/vi/AKiiekaEHhI/mqdefault.jpg";
                        width = 320;
                    };
                    standard =                     {
                        height = 480;
                        url = "https://i.ytimg.com/vi/AKiiekaEHhI/sddefault.jpg";
                        width = 640;
                    };
                };
                title = "The Legend of Zelda: Majora's Mask With Glitches - Part 17: Going Against the Flow";
            };
            statistics =             {
                commentCount = 54;
                dislikeCount = 3;
                favoriteCount = 0;
                likeCount = 265;
                viewCount = 6356;
            };
        }
    );
    kind = "youtube#videoListResponse";
    pageInfo =     {
        resultsPerPage = 1;
        totalResults = 1;
    };
} with error: nil

项目键的对象将是您传递给请求的每个视频ID的一系列信息.

通过挖掘这个回应,您将能够获得所需的信息.例如：

if let items = jsonResult["items"] as? [AnyObject]? {
    println(items?[0]["statistics"])
}

会给你一个视频的统计数据的字典(你可以得到喜欢的数量和观看次数).

{
    commentCount = 54;
    dislikeCount = 3;
    favoriteCount = 0;
    likeCount = 265;
    viewCount = 6356;
}

同样的方法可以用于现场直播.