Question

我正在使用quickblox开发一个Android应用程序，我使用自定义对象为每个用户存储一个文件。我做多个下载请求，我下载多个图像，所有文件都正确下载，但我需要知道每个下载文件的用户ID ...我尝试从回调中获取此信息，但我无法获取有关事件的此信息每个下载文件的onComplete。有一种方法可以了解用户所有者吗？

这是我的代码：

QBCustomObjectRequestBuilder requestBuilder = new QBCustomObjectRequestBuilder();
            requestBuilder.setPagesLimit(100);
            requestBuilder.or("idutente", lista);

            QBCustomObjects.getObjects("foto", requestBuilder, new QBCallbackImpl() {
                @Override
                public void onComplete(Result result) {
                    if (result.isSuccess()) {

                        QBCustomObjectLimitedResult coresult = (QBCustomObjectLimitedResult) result;
                        final ArrayList<QBCustomObject> co = coresult.getCustomObjects();

                        for (int i = 0 ; i < co.size() ; i++) {

                            QBCustomObject qbCustomObject = new QBCustomObject("foto", String.valueOf(co.get(i).getCustomObjectId()));
                            QBCustomObjectsFiles.downloadFile(qbCustomObject, "immagine", new QBCallbackImpl() {

                                @Override
                                public void onComplete(Result result) {
                                    QBFileDownloadResult downloadResult = (QBFileDownloadResult) result;

                                    if (result.isSuccess()) {

此处我需要知道下载文件的用户名

                                        // extract file
                                        byte[] content = downloadResult.getContent();       // that's downloaded file content
                                        InputStream is = downloadResult.getContentStream(); // that's downloaded file content

                                        File sdCard = Environment.getExternalStorageDirectory();
                                        File dir = new File (sdCard.getAbsolutePath() + "/quenchat/");
                                        dir.mkdirs();
                                        File cacheFile = new File(dir, "profilo_"+downloadResult.toString()+".png");

                                        BufferedOutputStream bos;
                                        try {
                                            bos = new BufferedOutputStream(new FileOutputStream(cacheFile));
                                            bos.write(content);
                                            bos.flush();
                                            bos.close();
                                        } catch (FileNotFoundException e) {
                                            // TODO Auto-generated catch block
                                            e.printStackTrace();
                                        } catch (IOException e) {
                                            // TODO Auto-generated catch block
                                            e.printStackTrace();
                                        }


                                    }
                                }
                            });
                        }

                    }
                }
            });

谢谢

Answer 1

您可以将上下文用于此目的

在此处了解有关上下文的更多信息http://quickblox.com/developers/Android#Performing_actions_with_context

正确答案是：

QBCustomObject qbCustomObject = new QBCustomObject("foto", String.valueOf(co.get(i).getCustomObjectId()));

String userID = String.valueOf(qbCustomObject.getUserId());

QBCustomObjectsFiles.downloadFile(qbCustomObject, "immagine", new QBCallbackImpl() {

    @Override
    public void onComplete(Result result, Object context) {
        QBFileDownloadResult downloadResult = (QBFileDownloadResult) result;
        if (result.isSuccess()) {
            int userID = Integer.parseInt((String)context);
        }
    }
}, userID);

Quickblox，如何从自定义对象的下载文件中获取用户ID

1 个答案: