Example usage for android.graphics BitmapFactory decodeByteArray

List of usage examples for android.graphics BitmapFactory decodeByteArray

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Introduction

In this page you can find the example usage for android.graphics BitmapFactory decodeByteArray.

Prototype

public static Bitmap decodeByteArray(byte[] data, int offset, int length)

Source Link

Document

Decode an immutable bitmap from the specified byte array.

Usage

From source file:com.androidrocks.bex.util.ImageUtilities.java

/**
 * Loads an image from the specified URL with the specified cookie.
 *
 * @param url The URL of the image to load.
 * @param cookie The cookie to use to load the image.
 *
 * @return The image at the specified URL or null if an error occured.
 *//*w w w  . j  a v  a2  s .  co  m*/
public static ExpiringBitmap load(String url, String cookie) {
    ExpiringBitmap expiring = new ExpiringBitmap();

    final HttpGet get = new HttpGet(url);
    if (cookie != null)
        get.setHeader("cookie", cookie);

    HttpEntity entity = null;
    try {
        final HttpResponse response = HttpManager.execute(get);
        if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
            setLastModified(expiring, response);

            entity = response.getEntity();

            InputStream in = null;
            OutputStream out = null;

            try {
                in = entity.getContent();
                if (FLAG_DECODE_BITMAP_WITH_SKIA) {
                    expiring.bitmap = BitmapFactory.decodeStream(in);
                } else {
                    final ByteArrayOutputStream dataStream = new ByteArrayOutputStream();
                    out = new BufferedOutputStream(dataStream, IOUtilities.IO_BUFFER_SIZE);
                    IOUtilities.copy(in, out);
                    out.flush();

                    final byte[] data = dataStream.toByteArray();
                    expiring.bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
                }
            } catch (IOException e) {
                android.util.Log.e(LOG_TAG, "Could not load image from " + url, e);
            } finally {
                IOUtilities.closeStream(in);
                IOUtilities.closeStream(out);
            }
        }
    } catch (IOException e) {
        android.util.Log.e(LOG_TAG, "Could not load image from " + url, e);
    } finally {
        if (entity != null) {
            try {
                entity.consumeContent();
            } catch (IOException e) {
                android.util.Log.e(LOG_TAG, "Could not load image from " + url, e);
            }
        }
    }

    return expiring;
}

From source file:com.example.android.camera.CameraActivity.java

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

    Camera.PreviewCallback previewCallback = new Camera.PreviewCallback() {

        @Override/*from   w  w  w . j  a va2s . c om*/
        public void onPreviewFrame(byte[] data, Camera camera) {

            if (notRequesting && mPreview.faces.size() >= 1 && imageFormat == ImageFormat.NV21) {

                // Block Request.
                notRequesting = false;

                try {
                    Camera.Parameters parameters = camera.getParameters();
                    Size size = parameters.getPreviewSize();

                    textServerView.setText("Preparing Image to send");
                    YuvImage previewImg = new YuvImage(data, parameters.getPreviewFormat(), size.width,
                            size.height, null);
                    pWidth = previewImg.getWidth();
                    pHeight = previewImg.getHeight();

                    Log.d("face View", "Width: " + pWidth + " x Height: " + pHeight);
                    prepareMatrix(matrix, 0, pWidth, pHeight);
                    List<Rect> foundFaces = getFaces();

                    for (Rect cRect : foundFaces) {
                        // Cropping
                        ByteArrayOutputStream bao = new ByteArrayOutputStream();
                        previewImg.compressToJpeg(cRect, 100, bao);
                        byte[] mydata = bao.toByteArray();

                        // Resizing
                        ByteArrayOutputStream sbao = new ByteArrayOutputStream();
                        Bitmap bm = BitmapFactory.decodeByteArray(mydata, 0, mydata.length);
                        Bitmap sbm = Bitmap.createScaledBitmap(bm, 100, 100, true);
                        bm.recycle();
                        sbm.compress(Bitmap.CompressFormat.JPEG, 100, sbao);
                        byte[] mysdata = sbao.toByteArray();

                        RequestParams params = new RequestParams();
                        params.put("upload", new ByteArrayInputStream(mysdata), "tmp.jpg");

                        textServerView.setText("Sending Image to the Server");

                        FaceMatchClient.post(":8080/match", params, new JsonHttpResponseHandler() {
                            @Override
                            public void onSuccess(JSONArray result) {
                                Log.d("face onSuccess", result.toString());

                                try {
                                    JSONObject myJson = (JSONObject) result.get(0);
                                    float dist = (float) Double.parseDouble(myJson.getString("dist"));
                                    Log.d("distance", "" + dist);
                                    int level = (int) ((1 - dist) * 100);
                                    if (level > previousMatchLevel) {
                                        textView.setText("Match " + level + "% with " + myJson.getString("name")
                                                + " <" + myJson.getString("email") + "> ");

                                        loadImage(myJson.getString("classes"), myJson.getString("username"));
                                    }

                                    previousMatchLevel = level;
                                    trialCounter++;

                                    if (trialCounter < 100 && level < 74) {
                                        textServerView.setText("Retrying...");
                                        notRequesting = true;
                                    } else if (trialCounter == 100) {
                                        textServerView.setText("Fail...");
                                    } else {
                                        textServerView.setText("Found Good Match? If not try again!");
                                        fdButtonClicked = false;
                                        trialCounter = 0;
                                        previousMatchLevel = 0;
                                        mCamera.stopFaceDetection();
                                        button.setText("StartFaceDetection");
                                    }

                                } catch (JSONException e) {
                                    // TODO Auto-generated catch block
                                    e.printStackTrace();
                                }

                                //                                        informationView.showInfo(myJson);
                            }

                        });
                    }

                    textServerView.setText("POST Sent");
                    textServerView.setText("Awaiting for response");

                } catch (Exception e) {
                    e.printStackTrace();
                    textServerView.setText("Error AsyncPOST");
                }
            }
        }
    };

    // Open the default i.e. the first rear facing camera.
    mCamera = Camera.open();
    mCamera.setPreviewCallback(previewCallback);

    // To use front camera
    //        mCamera = Camera.open(CameraActivity.getFrontCameraId());
    mPreview.setCamera(mCamera);
    parameters = mCamera.getParameters();
    imageFormat = parameters.getPreviewFormat();
    PreviewSize = parameters.getPreviewSize();
}

From source file:net.peterkuterna.android.apps.devoxxfrsched.util.ImageDownloader.java

Bitmap downloadBitmap(String url) {
    final int IO_BUFFER_SIZE = 4 * 1024;

    File cacheFile = null;//from w  ww .  j  a  va  2  s.  com
    try {
        MessageDigest mDigest = MessageDigest.getInstance("SHA-1");
        mDigest.update(url.getBytes());
        final String cacheKey = bytesToHexString(mDigest.digest());
        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
            cacheFile = new File(Environment.getExternalStorageDirectory() + File.separator + "Android"
                    + File.separator + "data" + File.separator + mContext.getPackageName() + File.separator
                    + "cache" + File.separator + "bitmap_" + cacheKey + ".tmp");
        }
    } catch (NoSuchAlgorithmException e) {
        // Oh well, SHA-1 not available (weird), don't cache bitmaps.
    }

    HttpGet getRequest = null;
    try {
        getRequest = new HttpGet(url);
    } catch (IllegalArgumentException e) {
        Log.e(TAG, "Error while constructing get request: " + e.getMessage());
        return null;
    }

    try {
        HttpResponse response = mClient.execute(getRequest);
        final int statusCode = response.getStatusLine().getStatusCode();
        if (statusCode != HttpStatus.SC_OK) {
            Log.w("ImageDownloader", "Error " + statusCode + " while retrieving bitmap from " + url);
            return null;
        }

        final HttpEntity entity = response.getEntity();
        if (entity != null) {
            final byte[] respBytes = EntityUtils.toByteArray(entity);

            if (cacheFile != null) {
                try {
                    cacheFile.getParentFile().mkdirs();
                    cacheFile.createNewFile();
                    FileOutputStream fos = new FileOutputStream(cacheFile);
                    fos.write(respBytes);
                    fos.close();
                } catch (FileNotFoundException e) {
                    Log.w(TAG, "Error writing to bitmap cache: " + cacheFile.toString(), e);
                } catch (IOException e) {
                    Log.w(TAG, "Error writing to bitmap cache: " + cacheFile.toString(), e);
                }
            }

            return BitmapFactory.decodeByteArray(respBytes, 0, respBytes.length);
        }
    } catch (IOException e) {
        getRequest.abort();
        Log.w(TAG, "I/O error while retrieving bitmap from " + url, e);
    } catch (IllegalStateException e) {
        getRequest.abort();
        Log.w(TAG, "Incorrect URL: " + url);
    } catch (Exception e) {
        getRequest.abort();
        Log.w(TAG, "Error while retrieving bitmap from " + url, e);
    }
    return null;
}

From source file:com.appdevper.mediaplayer.ui.PlaybackControlsFragment.java

private Bitmap downloadBitmap(String mediaId) {
    String url = MusicProvider.getInstance().getMusic(mediaId)
            .getString(MusicProviderSource.CUSTOM_METADATA_TRACK_SOURCE);
    final MediaMetadataRetriever metaRetriever = new MediaMetadataRetriever();
    metaRetriever.setDataSource(url, new HashMap<String, String>());
    try {/*from   w w  w  .java  2s  .  co m*/
        final byte[] art = metaRetriever.getEmbeddedPicture();
        return BitmapFactory.decodeByteArray(art, 0, art.length);
    } catch (Exception e) {
        Log.d(TAG, "Couldn't create album art: " + e.getMessage());
        return BitmapFactory.decodeResource(getResources(), R.drawable.ic_default_art);
    }
}

From source file:org.ubicompforall.cityexplorer.gui.PoiDetailsActivity.java

/**
 * Method fetches information for the current PoI, and shows it in the GUI.
 * @param poi The poi to fetch information from.
 *//*w w w .  jav a 2s  .c o m*/
private void showPoiDetails(Poi poi) {
    title.setText(poi.getLabel());
    description.setText(poi.getDescription());
    //      address.setText(   poi.getAddress().getStreet() + "\n" + poi.getAddress().getZipCode() + "\n" + poi.getAddress().getCity()); // ZIP code removed

    address.setText(poi.getAddress().getStreet() + "\n" + poi.getAddress().getCity());
    category.setText(poi.getCategory());
    telephone.setText(poi.getTelephone());
    openingHours.setText(poi.getOpeningHours());
    webPage.setText(poi.getWebPage());

    if (!poi.getImageURL().equals("")) {
        final String imageURL = poi.getImageURL();

        new Thread(new Runnable() {
            public void run() {
                try {

                    DefaultHttpClient httpClient = new DefaultHttpClient();
                    HttpGet httpGet = new HttpGet(imageURL); //have user-inserted url
                    HttpResponse httpResponse;
                    final HttpEntity entity;

                    httpResponse = httpClient.execute(httpGet);
                    if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                        entity = httpResponse.getEntity();

                        // TODO: The picture is not shown on Honeycomb SDK or higher (web service calls should be made on a separate thread)
                        // Code should be upgraded to use the Async Task 

                        if (entity != null) {
                            //converting into bytemap and inserting into imageView
                            poiImage.post(new Runnable() {
                                public void run() {
                                    byte[] imageBytes = new byte[0];
                                    try {
                                        imageBytes = EntityUtils.toByteArray(entity);
                                    } catch (Throwable t) {
                                        debug(0, "t is " + t);
                                        //                                 t.printStackTrace();
                                    }
                                    poiImage.setImageBitmap(
                                            BitmapFactory.decodeByteArray(imageBytes, 0, imageBytes.length));
                                }
                            });

                        } else {
                            debug(0, "entity == null?");
                        }
                    } else {
                        debug(0, "(httpResponse.getStatusLine().getStatusCode() == not OK ");
                    }

                } catch (UnknownHostException e) {
                    //Toast.makeText(PoiDetailsActivity.this, "Enable Internet to show Picture", Toast.LENGTH_SHORT );
                    debug(0, "Enable Internet to show Picture: " + imageURL);
                } catch (Exception e) {
                    debug(-1, "Error fetching image: " + imageURL);
                    e.printStackTrace();
                } //try-catch
            }//run
        }//new Runnable class
        ).start();
    } else {
        poiImage.setImageBitmap(null);
    } //if img, else blank
}

From source file:org.blanco.techmun.android.cproviders.MensajesFetcher.java

public List<Mensaje> getMensajes() {
    List<Mensaje> result = null;

    //Do not force the cache load first in order to know if the cache is old or not
    //   result = tryToLoadFromCache(context, false);
    //   if (result != null){
    //      //If loaded from cache
    //      return result;
    //   }/*from w  ww  .  jav a  2 s .c  o m*/

    HttpResponse response;
    boolean retrieved = true;
    try {
        result = new ArrayList<Mensaje>();
        HttpGet req = new HttpGet(TechMunContentProvider.MESAS_REST_SERVICE_BSAE_URI + "/mensajes");
        response = client.execute(req);
        HttpEntity entity = response.getEntity();
        JSONArray mensajes = XmlParser.parseJSONArrayFromHttpEntity(entity);
        for (int i = 0; i < mensajes.length(); i++) {
            JSONObject joMensaje = mensajes.getJSONObject(i);
            String sMensaje = joMensaje.getString("mensaje");
            long id = joMensaje.getLong("id");
            String sFecha = joMensaje.getString("fecha");
            Usuario autor = null;
            if (joMensaje.has("autor")) {
                JSONObject joUsuario = joMensaje.getJSONObject("autor");
                String saNombre = joUsuario.getString("nombre");
                String saCorreo = joUsuario.getString("correo");
                autor = new Usuario(saNombre, saCorreo);
            }
            Mensaje mensaje = new Mensaje(sMensaje, autor);
            mensaje.setFecha(new Date(Date.parse(sFecha)));
            mensaje.setId(id);
            //try to load the foto of the mensaje
            String encoded_foto = joMensaje.getString("encoded_foto");
            if (encoded_foto != null && !encoded_foto.equals("")) {
                byte foto[] = Base64Coder.decode(encoded_foto.toCharArray());
                mensaje.setFoto(BitmapFactory.decodeByteArray(foto, 0, foto.length));
            }

            result.add(mensaje);
        }
    } catch (Exception e) {
        Log.e("techmun2011", "Error Retrieving Mensajes from internet", e);
        retrieved = false;
    }
    //If there is an error with the connection try to load mensajes from cache
    if (!retrieved) {
        result = tryToLoadFromCache(context, true);
        return result;
    }
    //saveOnCache(context, result);
    return result;
}

From source file:com.example.android.apis.graphics.FingerPaint.java

private Bitmap loadBitmap() {
    SharedPreferences shre = PreferenceManager.getDefaultSharedPreferences(this);
    String previouslyEncodedImage = shre.getString("paint_image_data", "");

    if (!previouslyEncodedImage.equalsIgnoreCase("")) {
        byte[] b = Base64.decode(previouslyEncodedImage, Base64.DEFAULT);
        Bitmap bitmap = BitmapFactory.decodeByteArray(b, 0, b.length);
        Bitmap mutableBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true);
        return mutableBitmap;
    }//from  w  w  w  .  j a v  a2 s  .co m

    Display display = getWindowManager().getDefaultDisplay();
    @SuppressWarnings("deprecation")
    int width = display.getWidth();

    @SuppressWarnings("deprecation")
    int height = display.getHeight();

    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    return bitmap;
}

From source file:com.ijiaban.yinxiang.MainActivity.java

@SuppressLint("HandlerLeak")
@Override//from  www.  j  a  v a2s .  co m
protected void onCreate(Bundle savedInstanceState) {
    Log.w("MainActivity: onCreate()", "ONCREATE");

    super.onCreate(savedInstanceState);
    ANIMAL = getResources().getString(R.string.Animal);
    CARTOON = getResources().getString(R.string.Cartoon);
    LOVE = getResources().getString(R.string.Love);
    MUSIC = getResources().getString(R.string.Music);
    SPORTS = getResources().getString(R.string.Sports);
    BUSINESS = getResources().getString(R.string.Business);
    CARS = getResources().getString(R.string.Cars);
    DISHES = getResources().getString(R.string.Dishes);

    LOCAL = getResources().getString(R.string.Local);

    setContentView(R.layout.activity_main);
    MobclickAgent.updateOnlineConfig(this);
    LinearLayout layout = (LinearLayout) findViewById(R.id.adlayoutmainfragment);
    mAdView = new AdView(this);
    mAdView.setAdUnitId(getResources().getString(R.string.ad_unit_id));
    mAdView.setAdSize(AdSize.BANNER);
    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
            LinearLayout.LayoutParams.MATCH_PARENT);
    layout.addView(mAdView, params);
    mAdView.loadAd(new AdRequest.Builder().build());

    //        mNameTextView           = (TextView) findViewById(R.id.nameTextView);
    //        mDescriptionTextView    = (TextView) findViewById(R.id.descriptionTextView);
    mIconImageView = (ImageView) findViewById(R.id.iconImageView);
    tabs = (PagerSlidingTabStrip) findViewById(R.id.maintabs);
    pager = (ViewPager) findViewById(R.id.pager);
    pagerAdapter = new CommonPagerAdapter(getSupportFragmentManager());
    pager.setAdapter(pagerAdapter);
    final int pageMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 4,
            getResources().getDisplayMetrics());
    pager.setPageMargin(pageMargin);
    tabs.setViewPager(pager);

    // Check whether we're recreating a previously destroyed instance
    if (savedInstanceState != null) {
        Log.d("MainActivity", "onRestoreInstanceState()");

        // Always call the superclass so it can restore the view hierarchy
        super.onRestoreInstanceState(savedInstanceState);

        // Restore state members from saved instance
        byte[] imageBytes = savedInstanceState.getByteArray(STORED_IMAGE);
        if (imageBytes != null) {
            mGeneratedBitmap = BitmapFactory.decodeByteArray(imageBytes, 0, imageBytes.length);
        }
        mContact = savedInstanceState.getParcelable(STORED_CONTACT);
        mHasPickedContact = savedInstanceState.getBoolean(STORED_PICKED);
        mScreenWidthInPixels = savedInstanceState.getInt(STORED_WIDTH);

        if (mHasPickedContact && mContact != null && mGeneratedBitmap != null) {
            Log.d("Restoring generated bitmap", mGeneratedBitmap.getHeight() + "");
            Log.d("Restoring contact object", mContact.getFullName());
            showContactData();
        }
    }

    if (!mHasPickedContact) {
        Log.d("MainActivity: onCreate()", "No contact picked yet.");
        pickContact();
    }
}

From source file:com.keithandthegirl.services.download.DownloadService.java

private void saveBitmap(String filename, String urlPath, File output) {
    Log.v(TAG, "saveBitmap : enter");

    try {//from  w  w  w. ja  va  2s.c  om
        ResponseEntity<byte[]> responseEntity = template.exchange(urlPath, HttpMethod.GET, entity,
                byte[].class);
        switch (responseEntity.getStatusCode()) {
        case OK:
            Log.v(TAG, "saveBitmap : file downloaded");

            byte[] bytes = responseEntity.getBody();
            Bitmap bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);

            FileOutputStream fos = new FileOutputStream(output);
            bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
            fos.flush();
            fos.close();

            result = FragmentActivity.RESULT_OK;

            break;
        default:
            Log.v(TAG, "saveBitmap : file not downloaded");

            break;
        }
    } catch (Exception e) {
        Log.e(TAG, "saveBitmap : exit, error", e);
    }

    Log.v(TAG, "saveBitmap : exit");
}

From source file:rpassmore.app.fillthathole.ViewHazardActivity.java

private void populateFromHazard() {
    locationDesc.setText(hazard.getLocationDesc());
    // Photo set from photo handlers
    hazardType.setSelection(hazard.getHazardType());
    locationDesc.setText(hazard.getHazardDesc());
    // display the thumbnail
    if (hazard.getPhoto() != null) {
        image.setImageBitmap(BitmapFactory.decodeByteArray(hazard.getPhoto(), 0, hazard.getPhoto().length));
    }/*  w  w  w.  j a  v a 2  s  . com*/

    additionalInfo.setChecked(hazard.isHasAdditionalInfo());

    hazardDepth.setText(Double.toString(hazard.getDepth()));
    hazardSize.setText(Double.toString(hazard.getSize()));
    hazardDistFromKerb.setText(Double.toString(hazard.getDistFromKerb()));
    onRedRoute.setChecked(hazard.isOnRedRoute());
    onLevelCrossing.setChecked(hazard.isOnLevelCrossing());
    onTowPath.setChecked(hazard.isOnTowPath());
}