将多个图像上传到DropBox

Question

我会尽量保持清醒。 我正在尝试从自定义图库中选择多个图像到To dropbox。从自定义库中选择图像时，它返回所选图像的路径数组。我将此数组转换为File []数组。然后将File []传递给Asynctask以将图像上载到dropbox。 问题是只有数组中的第一个图像被上传。

这是Upload.java文件的代码。

    public class UploadFile extends AsyncTask<Void, Long, Boolean> {

private DropboxAPI<?> mApi;
private String mPath;
private File mFile;
private File[] fileMultipleUpload;
private long mFileLen;
private UploadRequest mRequest;
private Context mContext;
private ProgressDialog mDialog;
final static private String ACCOUNT_PREFS_NAME = "prefs";
private int flag;

private String mErrorMsg;
public UploadFile(Context context, DropboxAPI<?> api, String dropboxPath,
                  File[] file) {
    flag = 2;
    mContext = context;

    mApi = api;
    mPath = dropboxPath;
    fileMultipleUpload = file;

    mDialog = new ProgressDialog(context);
    mDialog.setMax(fileMultipleUpload.length);
    mDialog.setMessage("Uploading...");
    mDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
    mDialog.setCancelable(false);
    mDialog.setProgress(0);
    mDialog.setButton("Cancel", new OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
            // This will cancel the putFile operation
            mRequest.abort();
        }
    });
    mDialog.show();

}

@Override
protected void onPreExecute() {
    super.onPreExecute();
}

@Override
protected Boolean doInBackground(Void... params) {
    try {        
            FileInputStream fis;
            for (int j = 0; j < fileMultipleUpload.length; j++) {

                File mfile = fileMultipleUpload[j];

                publishProgress(Long.parseLong("" + j));

                fis = new FileInputStream(mfile);
                String path = mPath + mfile.getName();
                mRequest = mApi.putFileOverwriteRequest(path, fis, mfile.length(), null);
                    mRequest.upload();
                    return true;
            }


    } catch (DropboxUnlinkedException e) {
        // This session wasn't authenticated properly or user unlinked
        mErrorMsg = "This app wasn't authenticated properly.";
    } catch (DropboxFileSizeException e) {
        // File size too big to upload via the API
        mErrorMsg = "This file is too big to upload";
    } catch (DropboxPartialFileException e) {
        // We canceled the operation
        mErrorMsg = "Upload canceled";
    } catch (DropboxServerException e) {
        // Server-side exception. These are examples of what could happen,
        // but we don't do anything special with them here.
        mErrorMsg = "1";
        if (e.error == DropboxServerException._401_UNAUTHORIZED) {
            // Unauthorized, so we should unlink them. You may want to
            // automatically log the user out in this case.
            mErrorMsg = "2";
        } else if (e.error == DropboxServerException._403_FORBIDDEN) {
            // Not allowed to access this
            mErrorMsg = "3";
        } else if (e.error == DropboxServerException._404_NOT_FOUND) {
            // path not found (or if it was the thumbnail, can't be
            // thumbnailed)
            mErrorMsg = "4";
        } else if (e.error == DropboxServerException._507_INSUFFICIENT_STORAGE) {
            // user is over quota
            mErrorMsg = "5";
        } else {
            // Something else
            mErrorMsg = "6";
        }
        // This gets the Dropbox error, translated into the user's language
        mErrorMsg = e.body.userError;
        if (mErrorMsg == null) {
            mErrorMsg = e.body.error;
        }
    } catch (DropboxIOException e) {
        e.printStackTrace();
        // Happens all the time, probably want to retry automatically.
        mErrorMsg = "Network error.  Try again.";
    } catch (DropboxParseException e) {
        // Probably due to Dropbox server restarting, should retry
        mErrorMsg = "Dropbox error.  Try again.";
    } catch (DropboxException e) {
        // Unknown error
        mErrorMsg = "Unknown error.  Try again.";
    } catch (FileNotFoundException e) {
        mErrorMsg = "7";
    }
    return false;
}

@Override
protected void onProgressUpdate(Long... progress) {
    if (flag == 1) {
        int percent = (int) (100.0 * (double) progress[0] / mFileLen + 0.5);
        mDialog.setProgress(percent);
    } else if (flag == 2) {
        mDialog.setProgress(Integer.parseInt("" + progress[0]));
        super.onProgressUpdate(progress);
    }
}

@Override
protected void onPostExecute(Boolean result) {
    mDialog.dismiss();
    if (result) {
        showToast("Successfully uploaded");
    } else {
        showToast(mErrorMsg);
    }
}

我已检查fileMultipleUpload []中的值，并且它具有我要上传的文件的正确路径。 For循环中有什么问题吗？