Example usage for android.os AsyncTask AsyncTask

Introduction

In this page you can find the example usage for android.os AsyncTask AsyncTask.

Prototype

public AsyncTask() 

Source Link

Document

Creates a new asynchronous task.

Usage

From source file:com.foundstone.certinstaller.CertInstallerActivity.java

/**
 * Build a connection using the custom Trust Manager and Socket Factory to
 * grab the certificates./*w w  w . j  a  v  a 2  s  .c o m*/
 * 
 * @param urlString
 * @param proxyIP
 * @param proxyPort
 */
public void grabCerts(final String urlString, final String proxyIP, final String proxyPort) {
    new AsyncTask<Void, Void, Void>() {
        @Override
        protected Void doInBackground(Void... params) {

            SchemeRegistry schemeRegistry = new SchemeRegistry();
            schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
            schemeRegistry
                    .register(new Scheme("https", new EasySSLSocketFactory(CertInstallerActivity.this), 443));

            HttpParams httpParams = new BasicHttpParams();
            httpParams.setParameter(ConnManagerPNames.MAX_TOTAL_CONNECTIONS, 30);
            httpParams.setParameter(ConnManagerPNames.MAX_CONNECTIONS_PER_ROUTE, new ConnPerRouteBean(30));
            httpParams.setParameter(HttpProtocolParams.USE_EXPECT_CONTINUE, false);
            Log.d(TAG, proxyIP);
            Log.d(TAG, proxyPort);
            httpParams.setParameter(ConnRoutePNames.DEFAULT_PROXY,
                    new HttpHost(proxyIP, Integer.parseInt(proxyPort)));
            HttpProtocolParams.setVersion(httpParams, HttpVersion.HTTP_1_1);

            ClientConnectionManager cm = new ThreadSafeClientConnManager(httpParams, schemeRegistry);

            DefaultHttpClient defaultClient = new DefaultHttpClient(cm, httpParams);
            HttpGet httpget = new HttpGet();
            try {
                httpget.setURI(new URI("https://" + urlString));
                Log.d(TAG, urlString);

                HttpResponse httpResponse = defaultClient.execute(httpget);
                InputStream in = httpResponse.getEntity().getContent();
                // Once this connection is made the certs are grabbed
                BufferedReader reader = new BufferedReader(new InputStreamReader(in));

                in.close();
            } catch (Exception e) {
                e.printStackTrace();
            }

            return null;
        }

    }.execute();
}

---

From source file:net.sourceforge.kalimbaradio.androidapp.activity.SelectPlaylistActivity.java

public void validateSubsonicUserReg() {
    new AsyncTask<Void, Void, String>() {

        @Override//from   w ww. j  a v  a 2  s.c om
        protected String doInBackground(Void... params) {
            try {

                if (session.getUserDetails().get(SessionManager.KEY_CC) != null
                        && session.getUserDetails().get(SessionManager.KEY_MOBILENUMBER) != null) {
                    HttpClient httpClient = new DefaultHttpClient();
                    HttpContext localContext = new BasicHttpContext();

                    httpClient = new DefaultHttpClient();
                    localContext = new BasicHttpContext();

                    String URL = Constants.PREFERENCES_REST_SERVER_ADDRESS
                            + "/RESTFull/REST/WebService/AddUser?cc="
                            + URLEncoder.encode(session.getUserDetails().get(SessionManager.KEY_CC), "UTF-8")
                            + "&mobile_no="
                            + URLEncoder.encode(session.getUserDetails().get(SessionManager.KEY_MOBILENUMBER),
                                    "UTF-8")
                            + "&gcm_regid=" + URLEncoder.encode(regId, "UTF-8");
                    System.out.print(URL);
                    //Toast.makeText(getApplicationContext(), "URL: " +URL,Toast.LENGTH_LONG).show();
                    HttpGet httpGet = new HttpGet(URL);
                    HttpResponse response = httpClient.execute(httpGet, localContext);
                    String status = EntityUtils.toString(response.getEntity());
                    if (status.equals("1")) {
                        session.setUserReg();
                    }

                } else {
                    logout();
                    Intent i = new Intent(getApplicationContext(), loginActivity.class);
                    startActivity(i);
                    finish();
                }
            } catch (Exception e) {
                e.printStackTrace();
                // session.logoutUser();
            }
            return "Works";
        }

        /* @Override
         protected void onPostExecute(String msg) {
        if(session.getUserDetails().get(SessionManager.KEY_CC)!=null && session.getUserDetails().get(SessionManager.KEY_MOBILENUMBER)!=null) {
            Intent i = new Intent(getApplicationContext(), SelectPlaylistActivity.class);
            i.putExtra("regId", regId);
            startActivity(i);
            finish();
        }
        else{
            validateBttn.setEnabled(true);
        }
         }*/

    }.execute(null, null, null);
}

---

From source file:edu.cens.loci.ui.PlaceViewActivity.java

public void onQueryComplete(int token, Object cookie, final Cursor cursor) {
    final ArrayList<Entity> oldEntities = mEntities;
    (new AsyncTask<Void, Void, ArrayList<Entity>>() {
        @Override//w  w w.j  a  v  a2s  . c o  m
        protected ArrayList<Entity> doInBackground(Void... params) {
            ArrayList<Entity> newEntities = new ArrayList<Entity>(cursor.getCount());
            EntityIterator iterator = Places.newEntityIterator(cursor);
            try {
                while (iterator.hasNext()) {
                    Entity entity = iterator.next();
                    newEntities.add(entity);
                }
            } finally {
                iterator.close();
            }
            return newEntities;
        }

        @Override
        protected void onPostExecute(ArrayList<Entity> newEntities) {
            if (newEntities == null) {
                // There was an error loading.
                return;
            }
            synchronized (PlaceViewActivity.this) {
                if (mEntities != oldEntities) {
                    // Multiple async tasks were in flight and we
                    // lost the race.
                    return;
                }
                mEntities = newEntities;
                mHasEntities = true;
            }
            considerBindData();
        }
    }).execute();
}

---

From source file:info.guardianproject.otr.app.im.app.WelcomeActivity.java

private void completeShutdown() {
    new AsyncTask<String, Void, String>() {

        private ProgressDialog dialog;

        @Override//w w  w .j  a  va 2s .  c o m
        protected void onPreExecute() {
            if (mApp.getActiveConnections().size() > 0) {
                dialog = new ProgressDialog(WelcomeActivity.this);
                dialog.setCancelable(true);
                dialog.setMessage(getString(R.string.signing_out_wait));
                dialog.show();
            }
        }

        @Override
        protected String doInBackground(String... params) {

            boolean stillConnected = true;

            while (stillConnected) {

                try {
                    IImConnection conn = mApp.getActiveConnections().iterator().next();

                    if (conn.getState() == ImConnection.DISCONNECTED
                            || conn.getState() == ImConnection.LOGGING_OUT) {
                        stillConnected = false;
                    } else {
                        conn.logout();
                        stillConnected = true;
                    }

                    Thread.sleep(500);
                } catch (Exception e) {
                }

            }

            return "";
        }

        @Override
        protected void onPostExecute(String result) {
            super.onPostExecute(result);

            if (dialog != null)
                dialog.dismiss();

            mApp.forceStopImService();

            Imps.clearPassphrase(mApp);

            if (mCacheWord != null) {
                mCacheWord.manuallyLock();
            }

            Intent cacheWordIntent = CacheWordService.getBlankServiceIntent(getApplicationContext());
            stopService(cacheWordIntent);
            finish();
        }
    }.execute();

}

---

From source file:export.UploadManager.java

private void doUpload(final Uploader uploader) {
    final ProgressDialog copySpinner = mSpinner;
    final SQLiteDatabase copyDB = mDBHelper.getWritableDatabase();

    copySpinner.setMessage("Uploading " + uploader.getName());

    new AsyncTask<Uploader, String, Uploader.Status>() {

        @Override//from  w w w  .j a v  a 2  s .  co m
        protected Uploader.Status doInBackground(Uploader... params) {
            try {
                return params[0].upload(copyDB, mID);
            } catch (Exception ex) {
                ex.printStackTrace();
                return Uploader.Status.ERROR;
            }
        }

        @Override
        protected void onPostExecute(Uploader.Status result) {
            switch (result) {
            case CANCEL:
                disableUploader(disableUploaderCallback, uploader, false);
                return;
            case SKIP:
            case ERROR:
            case INCORRECT_USAGE:
                nextUploader();
                return;
            case OK:
                uploadOK(uploader, copySpinner, copyDB, mID);
                nextUploader();
                return;
            case NEED_AUTH: // should be handled inside connect "loop"
                handleAuth(new Callback() {
                    @Override
                    public void run(String uploaderName, Uploader.Status status) {
                        switch (status) {
                        case CANCEL:
                            disableUploader(disableUploaderCallback, uploader, false);
                            return;
                        case SKIP:
                        case ERROR:
                        case INCORRECT_USAGE:
                        case NEED_AUTH: // should be handled inside
                                        // connect "loop"
                            nextUploader();
                            return;
                        case OK:
                            doUpload(uploader);
                            return;
                        }
                    }
                }, uploader, result.authMethod);
                return;
            }
        }
    }.execute(uploader);
}

---

From source file:com.perm.DoomPlay.PlayingService.java

private void loadMusic() {
    dispose();//from ww  w  .ja va 2  s.c o  m

    //TODO: sometimes it throws  java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0 , it's need to be fixed
    if (audios == null || audios.size() == 0)
        return;
    updateWidgets();
    sendBroadcast(new Intent(actionTrackChanged));
    if (isPlaying)
        sendBroadcast(new Intent(actionIconPause));
    else
        sendBroadcast(new Intent(actionIconPlay));

    startNotif();
    setBroadcast();

    new AsyncTask<Void, String, Void>() {
        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            isLoadingTrack = true;

            if (loadingListener != null)
                loadingListener.onLoadingTrackStarted();
        }

        @Override
        protected Void doInBackground(Void... params) {
            try {
                if (isOnline)
                    bassPlayer.prepareNet(audios.get(indexCurrentTrack).getUrl());

                else
                    bassPlayer.prepareFile(audios.get(indexCurrentTrack).getUrl());
            } catch (IOException e) {
                cancel(false);
                e.printStackTrace();
            }

            return null;
        }

        @Override
        protected void onCancelled() {
            super.onCancelled();

            isLoadingTrack = false;
            if (loadingListener != null)
                loadingListener.onLoadingTrackEnded();

            Toast.makeText(getBaseContext(), getResources().getString(R.string.error), Toast.LENGTH_SHORT)
                    .show();
            isPlaying = false;

            sendBroadcast(new Intent(actionIconPlay));
            sendBroadcast(new Intent(SmallWidget.actionUpdateWidget));
            startNotif();
        }

        @Override
        protected void onPostExecute(Void aVoid) {
            super.onPostExecute(aVoid);
            isPrepared = true;

            isLoadingTrack = false;
            if (loadingListener != null)
                loadingListener.onLoadingTrackEnded();

            if (isPlaying) {
                bassPlayer.start();
            }

            Bitmap tempBitmap = AlbumArtGetter.getBitmapFromStore(audios.get(indexCurrentTrack).getAid(),
                    getBaseContext());

            if (tempBitmap == null)
                downloadAlbumArt(audios.get(indexCurrentTrack));
            else
                tempBitmap.recycle();
        }
    }.execute();

}

---

From source file:com.firescar96.nom.GCMIntentService.java

/**
 * Sends the registration ID to your server over HTTP, so it can use GCM/HTTP
 * or CCS to send messages to your app. Not needed for this demo since the
 * device sends upstream messages to a server that echoes back the message
 * using the 'from' address in the message.
 * @return //from   w  w w  .  jav  a2 s  .c  om
 */
public static String sendRegistrationIdToBackend() {
    String msg = "";
    new AsyncTask<Object, Object, Object>() {
        @Override
        protected Object doInBackground(Object... param) {
            String msg = "";
            InputStream inputStream = null;

            try {
                // 1. create HttpClient
                HttpClient httpclient = new DefaultHttpClient();

                // 2. make POST request to the given URL
                HttpPost httpPost = new HttpPost("http://nchinda2.mit.edu:666");

                String json = "";

                // 3. build jsonObject
                JSONObject jsonObject = new JSONObject();
                jsonObject.accumulate("regId", regId);
                jsonObject.accumulate("host", MainActivity.appData.getString("host"));

                // 4. convert JSONObject to JSON to String
                json = jsonObject.toString();

                // 5. set json to StringEntity
                StringEntity se = new StringEntity(json);

                // 6. set httpPost Entity
                httpPost.setEntity(se);

                // 7. Set some headers to inform server about the type of the content   
                httpPost.setHeader("Accept", "application/json");
                httpPost.setHeader("Content-type", "application/json");

                HttpParams httpParams = httpclient.getParams();
                HttpConnectionParams.setConnectionTimeout(httpParams, 5000);
                HttpConnectionParams.setSoTimeout(httpParams, 5000);
                httpPost.setParams(httpParams);

                // 8. Execute POST request to the given URL
                System.out.println("executing" + json);
                HttpResponse httpResponse = httpclient.execute(httpPost);
                // 9. receive response as inputStream
                inputStream = httpResponse.getEntity().getContent();

                // 10. convert inputstream to string
                if (inputStream != null)
                    msg = convertInputStreamToString(inputStream);
                else
                    msg = "Did not work!";

            } catch (Exception e) {
                e.printStackTrace();
                ;
            }
            System.out.println(msg);
            return msg;
        }
    }.execute(null, null, null);
    System.out.println(msg);
    return msg;
}

---

From source file:eu.nubomedia.nubomedia_kurento_health_communicator_android.kc_and_communicator.util.FileUtils.java

private static void showMedia(final String localId, final Context ctx, final ProgressDialog dialog) {
    new AsyncTask<Void, Void, Boolean>() {

        private boolean noMedia = false;

        @Override/*  w ww  .  ja  v  a 2 s.c  o  m*/
        protected Boolean doInBackground(Void... params) {
            File file1 = new File(FileUtils.getDir(), localId + ConstantKeys.EXTENSION_JPG);
            File file2 = new File(FileUtils.getDir(), localId + ConstantKeys.EXTENSION_3GP);

            Intent mediaPlayer = new Intent(Intent.ACTION_VIEW);

            if (file1.exists()) {
                mediaPlayer.setDataAndType(Uri.fromFile(file1), "image/*");
            } else if (file2.exists()) {
                mediaPlayer.setDataAndType(Uri.fromFile(file2), "video/*");

            } else {
                noMedia = true;
                return false;
            }
            ctx.startActivity(mediaPlayer);
            return true;
        }

        @Override
        protected void onPostExecute(Boolean result) {
            if (dialog != null) {
                dialog.dismiss();
            }
            if (noMedia) {
                Toast.makeText(ctx.getApplicationContext(),
                        ctx.getApplicationContext().getText(R.string.no_media), Toast.LENGTH_SHORT).show();
                noMedia = false;
            }
        }

    }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);

}

---

From source file:org.deviceconnect.android.deviceplugin.sonycamera.utils.DConnectUtil.java

/**
 * ???ID???./*  w w w . ja  va2s . co  m*/
 * 
 * @param deviceId ?ID
 * @param listener 
 */
public static void asynTakePhoto(final String deviceId, final DConnectMessageHandler listener) {
    AsyncTask<Void, Void, DConnectMessage> task = new AsyncTask<Void, Void, DConnectMessage>() {
        @Override
        protected DConnectMessage doInBackground(final Void... params) {
            try {
                DConnectClient client = new HttpDConnectClient();
                HttpPost request = new HttpPost(MEDIASTREAM_RECORDING_URI + "?deviceId=" + deviceId + "&"
                        + DConnectMessage.EXTRA_ACCESS_TOKEN + "=" + accessToken);
                HttpResponse response = client.execute(request);
                return (new HttpMessageFactory()).newDConnectMessage(response);
            } catch (IOException e) {
                return new DConnectResponseMessage(DConnectMessage.RESULT_ERROR);
            }
        }

        @Override
        protected void onPostExecute(final DConnectMessage message) {
            if (listener != null) {
                listener.handleMessage(message);
            }
        }
    };
    task.execute();
}

---

From source file:com.afrozaar.jazzfestreporting.MainActivity.java

private void directTag(final VideoData video) {
    final Video updateVideo = new Video();
    VideoSnippet snippet = video.addTags(Arrays.asList(Constants.DEFAULT_KEYWORD,
            Upload.generateKeywordFromPlaylistId(Constants.UPLOAD_PLAYLIST)));
    updateVideo.setSnippet(snippet);/* w w w.  j  a  v  a 2 s.  c  o  m*/
    updateVideo.setId(video.getYouTubeId());

    new AsyncTask<Void, Void, Void>() {
        @Override
        protected Void doInBackground(Void... voids) {

            YouTube youtube = new YouTube.Builder(transport, jsonFactory, credential)
                    .setApplicationName(Constants.APP_NAME).build();
            try {
                youtube.videos().update("snippet", updateVideo).execute();
            } catch (UserRecoverableAuthIOException e) {
                startActivityForResult(e.getIntent(), REQUEST_AUTHORIZATION);
            } catch (IOException e) {
                Log.e(TAG, e.getMessage());
            }
            return null;
        }

    }.execute((Void) null);
    Toast.makeText(this, R.string.video_submitted_to_ytdl, Toast.LENGTH_LONG).show();
}

---

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