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通过iOS App在Twitter上分享视频

发布时间:2019-05-15 发布网站:脚本之家
脚本之家收集整理的这篇文章主要介绍了通过iOS App在Twitter上分享视频脚本之家小编觉得挺不错的,现在分享给大家,也给大家做个参考。
是否可以使用SLRequest共享视频?

我可以使用相同的方式共享图像

SLRequest *postRequest = [SLRequest requestForServiceType:SLServiceTypeTwitter requestMethod:SLRequestMethodPOST URL:requestURL parameters:message];

if (isImage)
{
    NSData *data = UIImagePNGRepresentation(imgSelected);
    [postRequest addMultipartData:data withName:@"media" type:@"image/png" filename:@"TestImage.png"];
}

postRequest.account = account;

[postRequest performRequestWithHandler:^(NSData *responseData,NSHTTPURLResponse *urlResponse,NSError *error)
{
    if (!error)
    {
        NSLog(@"Upload Sucess !");
    }
}];

解决方法

我一直在阅读Twitter视频上传API文档,它非常简单.您基本上需要向其API发出3个POST请求.您上传的视频也限制为15 MB.

Uploads using this endpoint require at least 3 calls,one to
initialize the request,which returns the media_id,one or more calls
to append/upload binary or base64 encoded data,and one last call to
finalize the upload and make the media_id usable with other resources.

它的工作原理如下:

>请求1:发送具有视频大小(以字节为单位)的init请求.这将返回我们必须在请求2和3中使用的媒体ID号.
>请求2:使用请求1中返回的媒体ID号上传视频数据.
>请求3:视频上传完成后,将“FINALIZE”请求发送回Twitter API.这让Twitter API知道视频文件的所有块都已完成上传.

注意Twitter API接受“块”中的视频上传.因此,如果您的视频文件很大,您可能希望将其拆分为多个文件,因此您必须多次重复“请求2”(不要忘记每次都增加“segment_index”数字).

我已经开始编写以下代码了.尝试一下并尝试一下.我稍后会更新我的答案以改进它.

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { 

    // Assign the mediatype to a string 
    NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];

    // Check the media type string so we can determine if its a video
    if ([mediaType isEqualToString:@"public.movie"]) {

        NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL];
        NSData *webData = [NSData dataWithContentsOfURL:videoURL];

        // Get the size of the file in bytes.
        NSString *yourPath = [NSString stringWithFormat:@"%",videoURL];
        NSFileManager *man = [NSFileManager defaultManager];
        NSDictionary *attrs = [man attributesOfItemAtPath:yourPath error: NULL];
        UInt32 result = [attrs fileSize];

        //[self tweetVideoStage1:webData :result];
        [self tweetVideo:webData :result :1 :@"n/a"];
    }
}

-(void)tweetVideo:(NSData *)videoData :(int)videoSize :(int)mode :(NSString *)mediaID {

    NSURL *twitterVideo = [NSURL URLWithString:@"https://upload.twitter.com/1.1/media/upload.json"];

    // Set the parameters for the first twitter video request.
     NSDictionary *postDict;

    if (mode == 1) {

        postDict = @{@"command": @"INIT",@"total_bytes" : videoSize,@"media_type" : @"video/mp4"};
    }

    else if (mode == 2) {

        postDict = @{@"command": @"APPEND",@"media_id" : mediaID,@"segment_index" : @"0",@"media" : videoData };
    }

    else if (mode == 3) {

        postDict = @{@"command": @"FINALIZE",@"media_id" : mediaID };
    }

    SLRequest *postRequest = [SLRequest requestForServiceType:SLServiceTypeTwitter requestMethod:SLRequestMethodPOST URL:requestURL:twitterVideo parameters:postDict];

    // Set the account and begin the request.
    postRequest.account = account;
    [postRequest performRequestWithHandler:^(NSData *responseData,NSError *error) {

        if (!error) {

            if (mode == 1) {

                // Parse the returned data for the JSON string
                // which contains the media upload ID.
                NSMutableDictionary *returnedData = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableContainers error:&error]
                NSString *tweetID = [NSString stringWithFormat:@"%@",[returnedData valueForKey:@"media_id_string"]];
                [self tweetVideo:videoData :result :2 :tweetID];
            }

            else if (mode == 2) {
                [self tweetVideo:videoData :result :3 :mediaID];
            }
        }

        else {
            NSLog(@"Error stage %d - %",mode,error);
        }
    }];
}

更新 – Twitter API错误 – https://dev.twitter.com/overview/api/response-codes

在回答您的第一条评论时,错误503表示Twitter服务器过载,无法立即处理您的请求.

503 Service Unavailable The Twitter servers are up,but overloaded with requests. Try again later.

总结

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