通过iOS App在Twitter上分享视频

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 !");
    }
}];

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.

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)R_770_11845@ode :(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",@"@R_349_10586@l_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.