Question

I am trying to use the following code to obtain the result value, but the it never seems to update. I am checking the result in the class called startPosting():

public class PostDataThread extends AsyncTask<Void, Void, Void> {

  String [] data;
  Context context;
  int result = 0;

  public int startPosting(int type,String data[], Context c) {
    this.data = data;
    this.context = c;
    this.execute();
    return result;
  }

  @Override
  protected Void doInBackground(Void... params) {
    Connect c = new Connect();
    c.start(Constant.RECEIVED_MESSAGE, data, context);
    result = 444;
    return null;
  }

  protected void onPostExecute(Integer result) {
    //          
  }

}

Answer 1

The reason result is not getting updated is because you’re attempting to check it immediately after you call the AsyncTask.

Here’s how you could re-structure it:

public class PostDataThread extends AsyncTask<Void, Void, Integer> {

  String [] data;
  Context context;
  int res = 0;

  public PostDataThread(int type, String data[], Context c) {
    this.data = data;
    this.context = c;
  }

  @Override
  protected Void doInBackground(Void... params) {
    Connect c = new Connect();
    c.start(Constant.RECEIVED_MESSAGE, data, context);
    res = 444;
    return res;
  }

  @Override
  protected void onPostExecute(Integer result) {
    Log.d(TAG, "Result is: " +result);
  }

}

And to call it:

PostDataThread p = new PostDataThread(type, data, context);
p.execute();

Then modify onPostExecuteto do whatever you need to with result.