package org.anddev.android.webstuff;
import java.io.ByteArrayInputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.apache.http.util.ByteArrayBuffer;
import android.app.Activity;
import android.app.NotificationManager;
import android.net.http.EventHandler;
import android.net.http.Headers;
import android.net.http.RequestQueue;
import android.net.http.SslCertificate;
import android.os.Bundle;
import android.util.Log;
public class HTTPPostExample extends Activity {
// ===========================================================
// Fields
// ===========================================================
private final String DEBUG_TAG = "httpPostExample";
// ===========================================================
// 'Constructors'
// ===========================================================
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
/* Create a new HTTP-RequestQueue. */
android.net.http.RequestQueue rQueue = new RequestQueue(this);
/* Prepare the Post-Text we are going to send. */
String POSTText = null;
try {
POSTText = "mydata=" + URLEncoder.encode("HELLO, ANDROID HTTPPostExample - by anddev.org", "UTF-8");
} catch (UnsupportedEncodingException e) {
return;
}
/* And put the encoded bytes into an BAIS,
* where a function later can read bytes from. */
byte[] POSTbytes = POSTText.getBytes();
ByteArrayInputStream baos = new ByteArrayInputStream(POSTbytes);
/* Create a header-hashmap */
Map<String, String> headers = new HashMap<String, String>();
/* and put the Default-Encoding for html-forms to it. */
headers.put("Content-Type", "application/x-www-form-urlencoded");
/* Create a new EventHandler defined above, to handle what gets returned. */
MyEventHandler myEvH = new MyEventHandler(this);
/* Now we call a php-file I prepared. It is exactly this:
* <?php
* echo "POSTed data: '".$_POST['data']."'";
* ?>*/
rQueue.queueRequest("http://www.anddev.org/postresponse.php", "POST",
headers, myEvH, baos, POSTbytes.length,false);
/* Wait until the request is complete.*/
rQueue.waitUntilComplete();
}
// ===========================================================
// Worker Class
// ===========================================================
private class MyEventHandler implements EventHandler {
private static final int RANDOM_ID = 0x1337;
/** Will hold the data returned by the URLCall. */
ByteArrayBuffer baf = new ByteArrayBuffer(20);
/** Needed, as we want to show the results as Notifications. */
private Activity myActivity;
MyEventHandler(Activity activity) {
this.myActivity = activity; }
public void data(byte[] bytes, int len) {
baf.append(bytes, 0, len); }
public void endData() {
String text = new String(baf.toByteArray());
myShowNotificationAndLog("Data loaded: n" + text); }
public void status(int arg0, int arg1, int arg2, String s) {
myShowNotificationAndLog("status [" + s + "]"); }
public void error(int i, String s) {
this.myShowNotificationAndLog("error [" + s + "]"); }
public void handleSslErrorRequest(int arg0, String arg1, SslCertificate arg2) { }
public void headers(Iterator arg0) { }
public void headers(Headers arg0) { }
private void myShowNotificationAndLog(String msg) {
/* Print msg to LogCat and show Notification. */
Log.d(DEBUG_TAG, msg);
NotificationManager nm = (NotificationManager) this.myActivity
.getSystemService(Activity.NOTIFICATION_SERVICE);
nm.notifyWithText(RANDOM_ID, msg, NotificationManager.LENGTH_LONG, null);
}
}
