Android 使用服务将文件上传到带进度条的服务器

我已经使用 asynctask 实现了带有进度条的上传文件，但大文件或上传多个文件会挂起我的活动，现在我想做同样的事情，但使用服务而不是使用 asynctask。这是我的代码..

 private class UploadFileToServer extends AsyncTask<Void, Integer, String> {

        @Override
        protected void onPreExecute() {
            // setting progress bar to zero
            mBuilder.setProgress(100, 0, false);
            mNotifyManager.notify(0, mBuilder.build());
            super.onPreExecute();
        }

        @Override
        protected void onProgressUpdate(Integer... progress) {
            mBuilder.setProgress(100,
                    Integer.parseInt(String.valueOf(progress[0])), false);
            mNotifyManager.notify(0, mBuilder.build());
        }

        @Override
        protected String doInBackground(Void... params) {
            return uploadFile();
        }

        private String uploadFile() {
            String responseString = null;

            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost(***);

            try {
                AndroidMultiPartEntity entity = new AndroidMultiPartEntity(
                        new AndroidMultiPartEntity.ProgressListener() {
                            public void transferred(long num) {
                                publishProgress((int) ((num / (float) totalSize) * 100));
                            }
                        });

                File sourceFile = new File(orignal1);
                entity.addPart("image", new FileBody(sourceFile));
                totalSize = entity.getContentLength();
                httppost.setEntity(entity);

                // Making server call
                HttpResponse response = httpclient.execute(httppost);
                HttpEntity r_entity = response.getEntity();

                int statusCode = response.getStatusLine().getStatusCode();
                if (statusCode == 200) {
                    // Server response
                    responseString = EntityUtils.toString(r_entity);
                } else {
                    responseString = "Error occurred! Http Status Code: "
                            + statusCode;
                }

            } catch (ClientProtocolException e) {
                responseString = e.toString();
            } catch (IOException e) {
                responseString = e.toString();
            }
            return responseString;

        }

        @Override
        protected void onPostExecute(String result) {
         mBuilder.setContentText("Upload complete").setProgress(0, 0,false);
            mNotifyManager.notify(6532365, mBuilder.build());
            mNotifyManager.cancel(6532365);
            super.onPostExecute(result);
        }
    }

使用这个库

https://github.com/gotev/android-upload-service https://github.com/gotev/android-upload-service

通过此服务，您可以显示当前进度，它将在后台运行，这将帮助您保持应用程序的性能。