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Android

Posted by Nanette Keir
Nanette Keir
17,666 Points

Stuck on "Moving work from the main thread to an asynctask" in Build a Blog Reader

Hello, I seem to be stuck on Challenge Task number 3. I know it's something I'm doing wrong but I think I have been starring at it too long…

Any help would be appreciated.

Thanks!

Nanette

package com.example;

import android.os.Bundle;
import android.view.View;
import java.io.IOException;
import java.net.MalformedURLException;
import android.util.Log;
import android.os.AsyncTask;

public class MainListActivity extends ListActivity {

    public static final String URL = "http://www.teamtreehouse.com";
    public static final String TAG = MainListActivity.class.getSimpleName();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_list);
        CustomAsyncTask getCustomAsyncTask = new CustomAsyncTask
         CustomAsyncTask.execute();


        private class CustomAsyncTask extends AsyncTask <Object, Void, String> {
          @Override
          protected String doInBackground(Object... args){
          return "";
            try {
            URL treehouseUrl = new URL(URL);
            HttpURLConnection connection = (HttpURLConnection) treehouseUrl.openConnection();
            connection.connect();
            int responseCode = connection.getResponseCode();
        }
        catch (MalformedURLException e) {
            Log.e(TAG, "MalformedURLException caught!", e);
        }
        catch (IOException e) {
            Log.e(TAG, "IOException caught!", e);
            }
    }
}

2 Answers

Ernest Grzybowski
Ernest Grzybowski
Treehouse Project Reviewer

Hey Nanette Keir you are really close!

The problem (from what I see) seems to be that you are calling CustomAsyncTask.execute(); instead of getCustomAsyncTask.execute();

Here is a complete answer for part three of the challenge:

package com.example;

import android.os.Bundle;
import android.view.View;
import java.io.IOException;
import java.net.MalformedURLException;
import android.util.Log;
import android.os.AsyncTask;

public class MainListActivity extends ListActivity {

    public static final String URL = "http://www.teamtreehouse.com";
    public static final String TAG = MainListActivity.class.getSimpleName();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_list);
                CustomAsyncTask myAsync = new CustomAsyncTask();
                myAsync.execute();

    }
  private class CustomAsyncTask extends AsyncTask<Object, Void, String>{
    @Override
    protected String doInBackground(Object... params){

       try {
            URL treehouseUrl = new URL(URL);
            HttpURLConnection connection = (HttpURLConnection) treehouseUrl.openConnection();
            connection.connect();
            int responseCode = connection.getResponseCode();
        }
        catch (MalformedURLException e) {
            Log.e(TAG, "MalformedURLException caught!", e);
        }
        catch (IOException e) {
            Log.e(TAG, "IOException caught!", e);
        }

      return "";
    }
  }
}
Nanette Keir
Nanette Keir
17,666 Points
Nanette Keir
Nanette Keir
17,666 Points

Hooray!! Thank you so much! I knew I was missing something!!