Example usage for android.os AsyncTask AsyncTask

List of usage examples for android.os AsyncTask AsyncTask

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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:uk.bowdlerize.MainActivity.java

private void registerInBackground() {
    new AsyncTask<Void, Void, String>() {
        @Override/*from   ww w  .  j  av  a  2  s .  c o m*/
        protected String doInBackground(Void... params) {
            String msg = "";
            try {
                if (gcm == null) {
                    gcm = GoogleCloudMessaging.getInstance(context);
                }
                regid = gcm.register(SENDER_ID);
                msg = "Device registered, registration ID=" + regid;

                // You should send the registration ID to your server over HTTP,
                // so it can use GCM/HTTP or CCS to send messages to your app.
                // The request to your server should be authenticated if your app
                // is using accounts.
                sendRegistrationIdToBackend();

                // For this demo: we don't need to send it because the device
                // will send upstream messages to a server that echo back the
                // message using the 'from' address in the message.

                // Persist the regID - no need to register again.
                storeRegistrationId(context, regid);
            } catch (IOException ex) {
                msg = "Error :" + ex.getMessage();
                // If there is an error, don't just keep trying to register.
                // Require the user to click a button again, or perform
                // exponential back-off.
            }

            return msg;
        }

        @Override
        protected void onPostExecute(String msg) {
            //mDisplay.append(msg + "\n");
        }
    }.execute(null, null, null);
}

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

/**
 * ???./*from w  w w .  ja v  a2 s . co  m*/
 * 
 * @param deviceId ?ID
 * @param sessionKey ID
 * @param listener 
 */
public static void asyncUnregisterDiscovery(final String deviceId, final String sessionKey,
        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();
                HttpDelete request = new HttpDelete(
                        DISCOVERY_CHANGE_URI + "?deviceId=" + deviceId + "&sessionKey=" + sessionKey);
                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.example.caique.educam.Activities.TimelineActivity.java

private void retrievePosts(String user, String type) {
    mAsyncTask = new AsyncTask<String, Void, Request>() {
        private JSONObject rawJson = new JSONObject();
        private Request checkReq = new Request();

        @Override//from   ww  w . j  av  a  2s.  co  m
        protected void onPreExecute() {
            super.onPreExecute();
            mProgressBar.setVisibility(View.VISIBLE);
            mProgressBar.setEnabled(true);
        }

        @Override
        protected Request doInBackground(String... strings) {
            try {
                if (!strings[0].isEmpty()) {
                    rawJson.put("user", strings[0]);
                }
                if (!strings[1].isEmpty()) {
                    rawJson.put("type", strings[1]);
                    checkReq.setType(strings[1]);
                }

                checkReq.setResponse(POST(rawJson));
                return checkReq;
            } catch (IOException e) {
                e.printStackTrace();
            } catch (JSONException e) {
                e.printStackTrace();
                Toast.makeText(getApplicationContext(), "Falha na conexo", Toast.LENGTH_SHORT).show();
            }
            return null;
        }

        @Override
        protected void onPostExecute(Request request) {
            try {
                mProgressBar.setVisibility(View.INVISIBLE);
                mProgressBar.setEnabled(false);
                handleConnection(request);
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
    };

    mAsyncTask.execute(user, type);
}

From source file:com.stepsdk.android.api.APIClient.java

public void post(final String address, final Map<String, String> params, final Map<String, String> files,
        final APIRequestHandler handler) {
    log(TAG, "POST: " + address + "(" + params.toString() + ")");

    new AsyncTask<Void, Void, Void>() {

        private boolean mInterrupt = false;

        @Override//from  w  ww . j av a  2 s  .  c om
        protected void onPreExecute() {
            handler.before();
        };

        @Override
        protected Void doInBackground(Void... nothing) {
            Integer retryRemaining = 3;

            while (retryRemaining > 0) {
                try {
                    if (!NetworkUtil.isOnline(mContext)) {
                        handler.onException(new NetworkDownException());
                        return null;
                    }

                    HttpEntity response = null;
                    if (files == null || files.size() == 0)
                        response = postRequest(address, params);
                    else
                        response = postRequest(address, params, files);
                    handler.onResponse(response);
                    break;
                } catch (ClientProtocolException e) {
                    if (retryRemaining-- < 0) {
                        handler.onException(e);
                    }
                } catch (IOException e) {
                    if (retryRemaining-- < 0) {
                        handler.onException(e);
                    }
                } catch (NetworkDownException e) {
                    if (retryRemaining-- < 0) {
                        handler.onException(e);
                    }
                } catch (HttpGetException e) {
                    if (retryRemaining-- < 0) {
                        handler.onException(e);
                    }
                } catch (Exception e) {
                    if (retryRemaining-- < 0) {
                        handler.onException(e);
                    }
                }
            }

            return null;
        };

        @Override
        protected void onPostExecute(Void result) {
            if (!mInterrupt)
                handler.after();
        };

    }.execute();
}

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

public static void DownloadFromUrl(final String media, final String messageId, final Context ctx,
        final ImageView container, final Object object, final String timelineId, final String localId,
        final Long fileSize) {

    new AsyncTask<Void, Void, Boolean>() {
        private boolean retry = true;
        private Bitmap imageDownloaded;
        private BroadcastReceiver mDownloadCancelReceiver;
        private HttpGet job;
        private AccountManager am;
        private Account account;
        private String authToken;

        @Override/*  ww  w  .j a va 2s  .c  o  m*/
        protected void onPreExecute() {
            IntentFilter downloadFilter = new IntentFilter(ConstantKeys.BROADCAST_CANCEL_PROCESS);
            mDownloadCancelReceiver = new BroadcastReceiver() {
                @Override
                public void onReceive(Context context, Intent intent) {
                    String localIdToClose = (String) intent.getExtras().get(ConstantKeys.LOCALID);
                    if (localId.equals(localIdToClose)) {
                        try {
                            job.abort();
                        } catch (Exception e) {
                            log.debug("The process was canceled");
                        }
                        cancel(false);
                    }
                }
            };

            // registering our receiver
            ctx.getApplicationContext().registerReceiver(mDownloadCancelReceiver, downloadFilter);
        }

        @Override
        protected void onCancelled() {
            File file1 = new File(FileUtils.getDir(), localId + ConstantKeys.EXTENSION_JPG);
            File file2 = new File(FileUtils.getDir(), localId + ConstantKeys.EXTENSION_3GP);

            if (file1.exists()) {
                file1.delete();
            }
            if (file2.exists()) {
                file2.delete();
            }

            file1 = null;
            file2 = null;
            System.gc();
            try {
                ctx.getApplicationContext().unregisterReceiver(mDownloadCancelReceiver);
            } catch (Exception e) {
                log.debug("Receriver unregister from another code");
            }

            for (int i = 0; i < AppUtils.getlistOfDownload().size(); i++) {
                if (AppUtils.getlistOfDownload().get(i).equals(localId)) {
                    AppUtils.getlistOfDownload().remove(i);
                }
            }

            DataBasesAccess.getInstance(ctx.getApplicationContext()).MessagesDataBaseWriteTotal(localId, 100);

            Intent intent = new Intent();
            intent.setAction(ConstantKeys.BROADCAST_DIALOG_DOWNLOAD_FINISH);
            intent.putExtra(ConstantKeys.LOCALID, localId);
            ctx.sendBroadcast(intent);

            if (object != null) {
                ((ProgressDialog) object).dismiss();
            }
        }

        @Override
        protected Boolean doInBackground(Void... params) {
            try {
                File file1 = new File(FileUtils.getDir(), localId + ConstantKeys.EXTENSION_JPG);
                File file2 = new File(FileUtils.getDir(), localId + ConstantKeys.EXTENSION_3GP);
                // firt we are goint to search the local files
                if ((!file1.exists()) && (!file2.exists())) {
                    account = AccountUtils.getAccount(ctx.getApplicationContext(), false);
                    am = (AccountManager) ctx.getSystemService(Context.ACCOUNT_SERVICE);
                    authToken = ConstantKeys.STRING_DEFAULT;
                    authToken = am.blockingGetAuthToken(account, ctx.getString(R.string.account_type), true);

                    MessagingClientService messageService = new MessagingClientService(
                            ctx.getApplicationContext());

                    URL urlObj = new URL(Preferences.getServerProtocol(ctx), Preferences.getServerAddress(ctx),
                            Preferences.getServerPort(ctx), ctx.getString(R.string.url_get_content));

                    String url = ConstantKeys.STRING_DEFAULT;
                    url = Uri.parse(urlObj.toString()).buildUpon().build().toString() + timelineId + "/"
                            + messageId + "/" + "content";

                    job = new HttpGet(url);
                    // first, get free space
                    FreeUpSpace(ctx, fileSize);
                    messageService.getContent(authToken, media, messageId, timelineId, localId, false, false,
                            fileSize, job);
                }

                if (file1.exists()) {
                    imageDownloaded = decodeSampledBitmapFromPath(file1.getAbsolutePath(), 200, 200);
                } else if (file2.exists()) {
                    imageDownloaded = ThumbnailUtils.createVideoThumbnail(file2.getAbsolutePath(),
                            MediaStore.Images.Thumbnails.MINI_KIND);
                }

                if (imageDownloaded == null) {
                    return false;
                }
                return true;
            } catch (Exception e) {
                deleteFiles();
                return false;
            }
        }

        @Override
        protected void onPostExecute(Boolean result) {
            // We have the media
            try {
                ctx.getApplicationContext().unregisterReceiver(mDownloadCancelReceiver);
            } catch (Exception e) {
                log.debug("Receiver was closed on cancel");
            }

            if (!(localId.contains(ConstantKeys.AVATAR))) {
                for (int i = 0; i < AppUtils.getlistOfDownload().size(); i++) {
                    if (AppUtils.getlistOfDownload().get(i).equals(localId)) {
                        AppUtils.getlistOfDownload().remove(i);
                    }
                }

                DataBasesAccess.getInstance(ctx.getApplicationContext()).MessagesDataBaseWriteTotal(localId,
                        100);

                Intent intent = new Intent();
                intent.setAction(ConstantKeys.BROADCAST_DIALOG_DOWNLOAD_FINISH);
                intent.putExtra(ConstantKeys.LOCALID, localId);
                ctx.sendBroadcast(intent);
            }

            if (object != null) {
                ((ProgressDialog) object).dismiss();
            }

            // Now the only container could be the avatar in edit screen
            if (container != null) {
                if (imageDownloaded != null) {
                    container.setImageBitmap(imageDownloaded);
                } else {
                    deleteFiles();
                    imageDownloaded = decodeSampledBitmapFromResource(ctx.getResources(),
                            R.drawable.ic_error_loading, 200, 200);
                    container.setImageBitmap(imageDownloaded);
                    Toast.makeText(ctx.getApplicationContext(),
                            ctx.getApplicationContext().getText(R.string.donwload_fail), Toast.LENGTH_SHORT)
                            .show();
                }
            } else {
                showMedia(localId, ctx, (ProgressDialog) object);
            }

        }

        private void deleteFiles() {
            File file1 = new File(FileUtils.getDir(), localId + ConstantKeys.EXTENSION_JPG);
            File file2 = new File(FileUtils.getDir(), localId + ConstantKeys.EXTENSION_3GP);
            if (file1.exists()) {
                file1.delete();
            }
            if (file2.exists()) {
                file2.delete();
            }
        }

    }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
}

From source file:com.google.plus.wigwamnow.social.FacebookProvider.java

/**
 * Create a share action for the {@link Wigwam} on the Open Graph.
 *//*from   www  .  j  a v a2 s.c om*/
@Override
public boolean structuredShare(Wigwam wigwam, Activity activity) {

    Session session = Session.getActiveSession();
    if (session == null || !session.isOpened()) {
        return false;
    }
    if (!hasPublishPermissions()) {
        // Get user's permission to post OG Actions
        requestPublishPermissions(session, activity);
        return false;
    }

    final Activity hostActivity = activity;

    String postingString = activity.getResources().getString(R.string.posting);
    showProgressDialog(postingString, activity);

    final Wigwam toShare = wigwam;
    AsyncTask<Void, Void, Response> task = new AsyncTask<Void, Void, Response>() {

        @Override
        protected Response doInBackground(Void... params) {
            ShareAction shareAction = GraphObject.Factory.create(ShareAction.class);
            WigwamGraphObject wigwamObject = GraphObject.Factory.create(WigwamGraphObject.class);
            // Set wigwam URL
            String host = hostActivity.getResources().getString(R.string.external_host);
            String wigwamUrl = host + "/wigwams/" + toShare.getId().toString();
            wigwamObject.setUrl(wigwamUrl);
            // Add wigwam
            shareAction.setWigwam(wigwamObject);
            // Post to OpenGraph
            Request request = new Request(Session.getActiveSession(), SHARE_ACTION_PATH, null, HttpMethod.POST);
            request.setGraphObject(shareAction);
            return request.executeAndWait();
        }

        @Override
        protected void onPostExecute(Response response) {
            onPostActionResponse(response, hostActivity);
        }

    };

    task.execute();
    return true;
}

From source file:com.moki.touch.fragments.views.WebContent.java

private boolean setLogo() {
    final ImageView logoView = (ImageView) rootView.findViewById(R.id.logo);
    boolean shouldListenForLogo = false;
    if (SettingsUtil.getUploadLogo() != null && !SettingsUtil.getUploadLogo().isEmpty()) {
        final Bitmap bitmapLogo = getLogoBitmap();
        if (bitmapLogo == null) {
            shouldListenForLogo = true;/*from  www . j  av  a2 s .  co m*/
        } else {
            new AsyncTask<Void, Void, Void>() {
                @Override
                protected Void doInBackground(Void... params) {
                    return null;
                }

                @Override
                protected void onPostExecute(Void aVoid) {
                    super.onPostExecute(aVoid);
                    logoView.setImageBitmap(bitmapLogo);
                }
            }.execute();
        }
    } else {
        logoView.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.mt_web_logo));
    }
    return shouldListenForLogo;
}

From source file:com.abel.ooti.boss.DemoActivity.java

public void onClick(final View view) {

    if (view == findViewById(R.id.send)) {
        new AsyncTask<Void, Void, String>() {
            @Override// w  w w . j av a 2  s.c  o m
            protected String doInBackground(Void... params) {
                String msg = "";
                try {
                    Bundle data = new Bundle();
                    data.putString("my_message", "Hello World");
                    data.putString("my_action", "com.abel.ooti.gcm.ECHO_NOW");
                    String id = Integer.toString(msgId.incrementAndGet());
                    gcm.send(SENDER_ID + "@gcm.googleapis.com", id, data);
                    msg = "Sent message";
                } catch (IOException ex) {
                    msg = "Error :" + ex.getMessage();
                }
                return msg;
            }

            @Override
            protected void onPostExecute(String msg) {
                mDisplay.append(msg + "\n");
            }
        }.execute(null, null, null);
    } else if (view == findViewById(R.id.clear)) {
        mDisplay.setText("");
    }
}

From source file:ca.ualberta.cmput301.t03.user.FriendsListFragment.java

/**
 * {@inheritDoc}/* www  .ja  v  a2s .co m*/
 */
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    addFriendFab = (FloatingActionButton) getActivity().findViewById(R.id.addFriendFab);
    mListView = (ListView) getActivity().findViewById(R.id.friendsListListView);
    mSwipeRefreshLayout = (SwipeRefreshLayout) getActivity().findViewById(R.id.friendsListSwipeLayout);

    AsyncTask worker = new AsyncTask() {
        @Override
        protected Object doInBackground(Object[] params) {
            try {
                mModel = mUser.getFriends();
                mController = new FriendsListController(getContext(), mModel);

            } catch (IOException e) {
                e.printStackTrace();
            } catch (ServiceNotAvailableException e) {
                throw new RuntimeException("App is offline.", e);
            }
            return null;
        }

        @Override
        protected void onPostExecute(Object o) {
            populateFields();
        }
    };
    worker.execute();
}

From source file:org.jboss.aerogear.android.unifiedpush.gcm.AeroGearGCMPushRegistrar.java

@Override
public void unregister(final Context context, final Callback<Void> callback) {
    new AsyncTask<Void, Void, Exception>() {
        @Override/*from   w  ww.  jav a 2 s . c  o m*/
        protected Exception doInBackground(Void... params) {

            try {

                if (gcm == null) {
                    gcm = gcmProvider.get(context);
                }

                gcm.unregister();

                HttpProvider provider = httpProviderProvider.get(deviceRegistryURL, TIMEOUT);
                setPasswordAuthentication(variantId, secret, provider);

                try {
                    provider.delete(deviceToken);
                    deviceToken = "";
                    return null;
                } catch (HttpException ex) {
                    return ex;
                }

            } catch (Exception ex) {
                return ex;
            }

        }

        @SuppressWarnings("unchecked")
        @Override
        protected void onPostExecute(Exception result) {
            if (result == null) {
                callback.onSuccess(null);
            } else {
                callback.onFailure(result);
            }
        }

    }.execute((Void) null);
}