android - onPostExecute 从未调用过？

Question

public static class TestTask extends AsyncTask<Void, Integer, Integer> {

    private String stacktrace;

    public TestTask (String stacktrace){

        this.stacktrace = stacktrace;
    }

    @Override
    protected Integer doInBackground(Void... params) {

        try {
            Log.i("async", "doInBackground 1"); //this gets logged
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost("http://xx.xx:8080/android/service.php");
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
            nameValuePairs.add(new BasicNameValuePair("action", "logexception"));
            nameValuePairs.add(new BasicNameValuePair("stacktrace", stacktrace));
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

            HttpResponse response = httpclient.execute(httppost);
            Log.i("async", "doInBackground 2"); //this gets logged
            return 1;

        } catch (Exception e) {
            e.printStackTrace();
            return 0;
        }

    }

    protected void onPreExecute(){
        Log.i("async", "onPreExecute"); //this gets logged
    }

    @Override
    protected void onPostExecute(Integer result) {
        Log.i("async", "onPostExecute"); //this doenst get logged!


    }
}

我一直在检查与此相关的其他 SO 线程，但根据他们的说法，据我所知，我的代码看起来是正确的。那么，为什么我永远达不到 Log.i("async", "onPostExecute");？谢谢

Answer 1

您是否在 UI 线程上创建了您的 AsyncTask？其他好像不错泛型和注解都很好。

所以可能的问题是您的 doInBackground 方法永远不会返回，因为 onPostExecute 是在 doInBackground 返回时自动调用的。