Question

我使用asynctask将用户数据上传到服务器，但是当我点击按钮时，progressdialog仍然显示很长时间，我在Asynctask的OnpostExecute（）方法中使用了dialog.cancel，但是它没有工作

Asynctask代码：

private class Userdataupload2 extends AsyncTask<String, Void, String> {

    @Override
    protected String doInBackground(String[] params) {
        // do above Server call here


        String s = "eroor";

                HttpClient httpClient = new DefaultHttpClient();
                HttpPost httpPost = new HttpPost("http://www.webdev1.comxa.com/sciencequiz/user.php");


                int mode = Activity.MODE_PRIVATE;
                SharedPreferences my2 = getSharedPreferences("fb", mode);
                String u = my2.getString("name", "error");
                String v = my2.getString("coin", "error");
                String ax = my2.getString("android_id", "error");
                String bx = my2.getString("device_model", "error");
                String cx = my2.getString("android_version", "error");
                String dx = my2.getString("cpu_info", "error");
                String ex = my2.getString("mem_info", "error");
                String fx = my2.getString("device_manufacturer", "error");

                List<NameValuePair> nameValuePair = new ArrayList<NameValuePair>(2);
                nameValuePair.add(new BasicNameValuePair("name", u));
                nameValuePair.add(new BasicNameValuePair("coin", v));
                nameValuePair.add(new BasicNameValuePair("androidId", ax));
                nameValuePair.add(new BasicNameValuePair("deviceModel", bx));
                nameValuePair.add(new BasicNameValuePair("androidVersion", cx));
                nameValuePair.add(new BasicNameValuePair("cpuInfo", dx));
                nameValuePair.add(new BasicNameValuePair("memInfo", ex));
                nameValuePair.add(new BasicNameValuePair("deviceManufacturer", fx));

                try {
                    httpPost.setEntity(new UrlEncodedFormEntity(nameValuePair));

                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                    //cancel(true);
                }

                try {
                    HttpResponse response = httpClient.execute(httpPost);
                    // write response to log
                    //tdt(response.toString());
                    Log.d("Http Post Response:", response.toString());

                    s = response.toString();
                } catch (ClientProtocolException e) {
                    // Log exception
                    //cancel(true);
                    e.printStackTrace();
                } catch (IOException e) {
                    // Log exception
                    //cancel(true);
                    e.printStackTrace();
                }
        return s;
    }


    @Override
    protected void onPostExecute(String message) {
        //process message

        int mode = Activity.MODE_PRIVATE;
        SharedPreferences data = getSharedPreferences("data", mode);
        SharedPreferences.Editor e = data.edit();
        e.putInt("aa",1);
        e.commit();
        dialog.cancel();
        goToActivity(onlineranking.class);
    }
    @Override
    public void onPreExecute()
    {

    }
}

按钮点击功能：

new Thread(new Runnable() {
            public void run() {

                try {
                    new Userdataupload2().get(10000,TimeUnit.MILLISECONDS);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                } catch (ExecutionException e) {
                    e.printStackTrace();
                } catch (TimeoutException e) {
                    e.printStackTrace();
                    dialog.cancel();
                }
            }
            }).start();

我使用了新的Userdataupload2().get(10000,TimeUnit.MILLISECONDS);因为如果没有互联网连接就停止了10秒的任务，

我在stackoverflow中尝试了很多例子，但是所有都是在下载数据的情况下，但我想发布/上传数据如何解决这个问题？

编辑：
我希望不仅在一段时间后取消progressdialog，只有在成功发布数据后才会取消或取消progressdialog

Answer 1

看起来你没有在按钮点击中启动你的线程。您的代码中缺少start()。

new Thread(new Runnable() {
        public void run() {

            try {
                new Userdataupload2().get(10000,TimeUnit.MILLISECONDS);
            } catch (InterruptedException e) {
                e.printStackTrace();
            } catch (ExecutionException e) {
                e.printStackTrace();
            } catch (TimeoutException e) {
                e.printStackTrace();
                dialog.cancel();
            }
        }
        }).start();

Answer 2

尝试dialog.dismiss()而不是dialog.cancel()

@Override
    protected void onPostExecute(String message) {
        //process message

        int mode = Activity.MODE_PRIVATE;
        SharedPreferences data = getSharedPreferences("data", mode);
        SharedPreferences.Editor e = data.edit();
        e.putInt("aa",1);
        e.commit();
        dialog.dismiss();
        goToActivity(onlineranking.class);
    }

Answer 3

可能是你在一个单独的线程中处理它的原因。我认为不需要在按钮点击中创建新线程。只需删除新的线程（新的Runnable ....，并编写代码而不创建新线程。就像
一样试试{

new Userdataupload2（）。get（10000，TimeUnit.MILLISECONDS）;

}

catch（InterruptedException e）{

e.printStackTrace（）;

}

catch（ExecutionException e）{

e.printStackTrace（）;

}

catch（TimeoutException e）{

e.printStackTrace（）;

dialog.cancel（）;

}

Android asynctask未完成其流程

3 个答案: