使用twitterkit在twitter上发布图片

Question

我正在尝试使用具有自定义UI的Twitters新TwitterKit发布图片和推特。他们提供的唯一文档是如何用他们的观点来做这件事。

这样我就可以不需要图像就知道怎么做了

NSMutableDictionary *message = [[NSMutableDictionary alloc] initWithObjectsAndKeys:[params objectForKey:@"description"],@"status",@"true",@"wrap_links", nil];

NSURLRequest* request = [twAPIClient URLRequestWithMethod:@"POST" URL:@"https://api.twitter.com/1.1/statuses/update.json" parameters:message error:nil];

[twAPIClient sendTwitterRequest:request completion:^(NSURLResponse* response, NSData* data, NSError* connectionError){



}];

但它们的URLRequestWithMethod方法并不是可变的。我将如何添加一个图像到它。您以前在SLRequest中使用

[postRequest addMultipartData:UIImageJPEGRepresentation(image, 0.5) withName:@"media" type:@"image/jpeg" filename:@"image.png"];

Answer 1

我已经想明白了。

首先，您需要将图片发布到twitter上。

NSString *media = @"https://upload.twitter.com/1.1/media/upload.json";

NSData *imageData = UIImageJPEGRepresentation(image, 0.9);

NSString *imageString = [corgiData base64EncodedStringWithOptions:0];               

NSURLRequest *request = [client URLRequestWithMethod:@"POST" URL:media parameters:@{@"media":imageString} error:&requestError];

[[[Twitter sharedInstance] APIClient] sendTwitterRequest:request completion:^(NSURLResponse *urlResponse, NSData *data, NSError *connectionError) {


}];

然后在response对象中使用media_id_string并将其添加到我问题中的代码参数中。

所以

NSMutableDictionary *message = [[NSMutableDictionary alloc] initWithObjectsAndKeys:[params objectForKey:@"description"],@"status",@"true",@"wrap_links",mediaIDString, @"media_ids", nil];

NSURLRequest* request = [twAPIClient URLRequestWithMethod:@"POST" URL:@"https://api.twitter.com/1.1/statuses/update.json" parameters:message error:nil];

[twAPIClient sendTwitterRequest:request completion:^(NSURLResponse* response, NSData* data, NSError* connectionError){

 NSDictionary *responseDict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&parsingError];

}];

注意来自第一个请求的响应的media_ids对象

NSMutableDictionary *message = [[NSMutableDictionary alloc] initWithObjectsAndKeys:[params objectForKey:@"description"],@"status",@"true",@"wrap_links",[responseDict objectForKey:@"media_id_string"], @"media_ids", nil];

所以你可以把它放在完成块里面，然后它会发布图片和推特。

Answer 2

截至2016年4月，Fabric的TwitterKit 2.0 (或更新版本)推出了一种新的uploadMedia方法来覆盖媒体上传部分。下面是一些适用于我的objc代码。

(earlier)
self.userID = [[Twitter sharedInstance] sessionStore].session.userID;

- (void)tweetImage:(UIImage*)image {
        NSAssert([NSThread currentThread].isMainThread && self.userID, @"Twitterkit needs main thread, with self.userID set");
        if (!self.userID)
            return;
        NSString *tweetStr = @"Look at me! I'm tweeting! #hashtag";

        TWTRAPIClient *twitterClient = [[TWTRAPIClient alloc] initWithUserID:self.userID];
        NSData *imgData = UIImageJPEGRepresentation(image, 0.6f);
        if (!imgData) {
            NSAssert(false, @"ERROR: could not make nsdata out of image");
            return;
        }
        [twitterClient uploadMedia:imgData contentType:@"image/jpeg" completion:^(NSString * _Nullable mediaID, NSError * _Nullable error) {
            if (error) {
                NSAssert(false, @"ERROR: error uploading collage to twitter");
                return;
            }

            NSError *urlerror = nil;
            NSURLRequest *request = [twitterClient URLRequestWithMethod:@"POST" URL:@"https://api.twitter.com/1.1/statuses/update.json" parameters:@{ @"status":tweetStr, @"media_ids":mediaID } error:&urlerror];
            if (urlerror) {
                NSAssert(false, @"ERROR creating twitter URL request: %@", urlerror);
                return;
            }
            [twitterClient sendTwitterRequest:request completion:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) {
                if (!connectionError && ((NSHTTPURLResponse*)response).statusCode != 200) {
                    DDLogInfo(@"TwitterHelper tweetImage: non-200 response: %d. Data:\n%@", (int)((NSHTTPURLResponse*)response).statusCode, [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]);
                }
            }];
        }];
    }

Answer 3

斯威夫特

func post (tweetString: String, tweetImage: NSData) {

    let uploadUrl = "https://upload.twitter.com/1.1/media/upload.json"
    let updateUrl = "https://api.twitter.com/1.1/statuses/update.json"
    let imageString = tweetImage.base64EncodedStringWithOptions(NSDataBase64EncodingOptions())
    let request = Twitter.sharedInstance().APIClient.URLRequestWithMethod("POST",
        URL: uploadUrl, parameters: ["media": imageString], error: nil)
    Twitter.sharedInstance().APIClient.sendTwitterRequest(request, completion: { (urlResponse, data, connectionError) -> Void in

        if let mediaDict = self.nsdataToJSON(data!) {
            let validTweetString = TweetValidator().validTween(tweetString)
            let message = ["status": validTweetString, "media_ids": mediaDict["media_id_string"]]
            let request = Twitter.sharedInstance().APIClient.URLRequestWithMethod("POST",
                URL: updateUrl, parameters: message, error:nil)

                Twitter.sharedInstance().APIClient.sendTwitterRequest(request, completion: { (response, data, connectionError) -> Void in
            })
        }
    })
}

func nsdataToJSON (data: NSData) -> AnyObject? {
    do {
        return try NSJSONSerialization.JSONObjectWithData(data, options: .MutableContainers)
    } catch let myJSONError {
        print(myJSONError)
    }
    return nil
}