Android AsyncTask sending data via http Post

Question

I have this script.

I have gone through many variations of the problem on stack overflow and used the solution to try and build the knowledge to do this but it seems to be failing everytime, can someone help?

public class Main extends Activity implements OnClickListener {

    private EditText value;
    private Button btn;
    private ProgressBar pb;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        value = (EditText) findViewById(R.id.editText1);
        btn = (Button) findViewById(R.id.button1);
        pb = (ProgressBar) findViewById(R.id.progressBar1);
        pb.setVisibility(View.GONE);
        btn.setOnClickListener(this);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    public void onClick(View v) {
        // TODO Auto-generated method stub
        if (value.getText().toString().length() < 1) {
            // out of range
            Toast.makeText(this, "please enter something", Toast.LENGTH_LONG)
                    .show();
        } else {
            pb.setVisibility(View.VISIBLE);
            new MyAsyncTask().execute("hey");
        }

    }

    private class MyAsyncTask extends AsyncTask<String, Integer, Double> {

        @Override
        protected Double doInBackground(String... params) {
            // TODO Auto-generated method stub
            postData(params[0]);
            return null;
        }

        protected void onPostExecute(Double result) {
            pb.setVisibility(View.GONE);
            Toast.makeText(getApplicationContext(), "command sent",
                    Toast.LENGTH_LONG).show();
        }

        protected void onProgressUpdate(Integer... progress) {
            pb.setProgress(progress[0]);
        }

        public void postData(String valueIWantToSend) {
            // Create a new HttpClient and Post Header
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost(
                    "http://users.aber.ac.uk/bym1/group/androidto.php");

            try {
                // Add your data
                List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
                nameValuePairs.add(new BasicNameValuePair("myHttpData",
                        valueIWantToSend));
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

                // Execute HTTP Post Request
                HttpResponse response = httpclient.execute(httppost);

            } catch (ClientProtocolException e) {
                // TODO Auto-generated catch block
            } catch (IOException e) {
                // TODO Auto-generated catch block
            }
        }   
    }
}

I found this code on the net and I'm just trying to get it to work so i have a working prototype to work off and build my own but I keep getting this in my log file:

    01-28 22:30:07.030: W/dalvikvm(27142): threadid=11: thread exiting with uncaught exception (group=0x40bc2498)
01-28 22:30:07.030: E/test(27142): Exception
01-28 22:30:07.060: E/AndroidRuntime(27142): FATAL EXCEPTION: AsyncTask #1
01-28 22:30:07.060: E/AndroidRuntime(27142): java.lang.RuntimeException: An error occured while executing doInBackground()
01-28 22:30:07.060: E/AndroidRuntime(27142):    at android.os.AsyncTask$3.done(AsyncTask.java:299)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at java.util.concurrent.FutureTask.run(FutureTask.java:137)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at java.lang.Thread.run(Thread.java:856)
01-28 22:30:07.060: E/AndroidRuntime(27142): Caused by: java.lang.SecurityException: Permission denied (missing INTERNET permission?)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at java.net.InetAddress.lookupHostByName(InetAddress.java:418)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at java.net.InetAddress.getAllByName(InetAddress.java:214)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at com.example.httpasync.Main$MyAsyncTask.postData(Main.java:98)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at com.example.httpasync.Main$MyAsyncTask.doInBackground(Main.java:70)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at com.example.httpasync.Main$MyAsyncTask.doInBackground(Main.java:1)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at android.os.AsyncTask$2.call(AsyncTask.java:287)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
01-28 22:30:07.060: E/AndroidRuntime(27142):    ... 5 more
01-28 22:30:07.060: E/AndroidRuntime(27142): Caused by: libcore.io.GaiException: getaddrinfo failed: EAI_NODATA (No address associated with hostname)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at libcore.io.Posix.getaddrinfo(Native Method)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at libcore.io.ForwardingOs.getaddrinfo(ForwardingOs.java:55)
01-28 22:30:07.060: E/AndroidRuntime(27142):    at java.net.InetAddress.lookupHostByName(InetAddress.java:405)
01-28 22:30:07.060: E/AndroidRuntime(27142):    ... 19 more
01-28 22:30:07.060: E/AndroidRuntime(27142): Caused by: libcore.io.ErrnoException: getaddrinfo failed: EACCES (Permission denied)
01-28 22:30:07.060: E/AndroidRuntime(27142):    ... 22 more

Manifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.httpasync"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.httpasync.Main"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Internet permissions are set, I have looked up the exceptions but the answers dont seem to relate to my code, any ideas?

Answer 1

The clue is in the logcat:

Caused by: java.lang.SecurityException: Permission denied (missing INTERNET permission?)

You are missing android.permission.INTERNET permission in your AndroidManifest. Add this line:

<uses-permission android:name="android.permission.INTERNET"></uses-permission>

just below:

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="18" />