Example usage for android.graphics BitmapFactory decodeByteArray

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, Options opts) 

Source Link

Document

Decode an immutable bitmap from the specified byte array.

Usage

From source file:com.daiv.android.twitter.services.SendTweet.java

public Bitmap getBitmapToSend(Uri uri, Context context) throws IOException {
    InputStream input = context.getContentResolver().openInputStream(uri);
    int reqWidth = 750;
    int reqHeight = 750;

    byte[] byteArr = new byte[0];
    byte[] buffer = new byte[1024];
    int len;/*from w  w  w .  j  a  v  a2  s  . c  om*/
    int count = 0;

    try {
        while ((len = input.read(buffer)) > -1) {
            if (len != 0) {
                if (count + len > byteArr.length) {
                    byte[] newbuf = new byte[(count + len) * 2];
                    System.arraycopy(byteArr, 0, newbuf, 0, count);
                    byteArr = newbuf;
                }

                System.arraycopy(buffer, 0, byteArr, count, len);
                count += len;
            }
        }

        final BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeByteArray(byteArr, 0, count, options);

        options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
        options.inPurgeable = true;
        options.inInputShareable = true;
        options.inJustDecodeBounds = false;
        options.inPreferredConfig = Bitmap.Config.ARGB_8888;

        Bitmap b = BitmapFactory.decodeByteArray(byteArr, 0, count, options);

        ExifInterface exif = new ExifInterface(IOUtils.getPath(uri, context));
        int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                ExifInterface.ORIENTATION_UNDEFINED);

        return rotateBitmap(b, orientation);

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

        return null;
    }
}

---

From source file:com.yk.notification.util.BitmapUtil.java

/**
 * ??bitmap//w  ww  .  j  a  v a  2  s . c  om
 * 
 * @param data
 *            Bitmapbyte
 * @param offset
 *            imagebyte?
 * @param length
 *            the number of bytes, offset
 * @param reqWidth
 *            
 * @param reqHeight
 *            
 */
public static Bitmap getBitmapFromByteArray(byte[] data, int offset, int length, int reqWidth, int reqHeight) {
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;
    BitmapFactory.decodeByteArray(data, offset, length, options);
    options = calculateInSampleSize(options, reqWidth, reqHeight);
    return BitmapFactory.decodeByteArray(data, offset, length, options);
}

---

From source file:com.life.wuhan.util.ImageDownloader.java

private Bitmap downloadBitmap(final String imageUrl) {

    // AndroidHttpClient is not allowed to be used from the main thread
    final HttpClient client = new DefaultHttpClient();
    // ??/*from   w w  w  .j  ava  2s  . c  o  m*/
    if (NetworkUtil.getNetworkType(mContext) == NetworkUtil.APN_CMWAP) {
        HttpHost proxy = new HttpHost(NetworkUtil.getHostIp(), NetworkUtil.getHostPort());
        client.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
    }

    final HttpGet getRequest = new HttpGet(imageUrl);
    try {
        HttpResponse response = client.execute(getRequest);
        final int statusCode = response.getStatusLine().getStatusCode();
        if (statusCode != HttpStatus.SC_OK) {
            return null;
        }
        final HttpEntity entity = response.getEntity();
        if (entity != null) {
            final byte[] respBytes = EntityUtils.toByteArray(entity);
            writeImageFile(imageUrl, entity, respBytes);
            // Decode the bytes and return the bitmap.
            return BitmapFactory.decodeByteArray(respBytes, 0, respBytes.length, null);

        }
    } catch (IOException e) {
        getRequest.abort();
    } catch (OutOfMemoryError e) {
        clearCache();
        System.gc();
    } catch (IllegalStateException e) {
        getRequest.abort();
    } catch (Exception e) {
        getRequest.abort();
    } finally {
    }
    return null;
}

---

From source file:se.dw.okhttpwrapper.ImageRequest.java

private Bitmap downloadBitmap(String url) {
    OkHttpClient client = OkHttpWrapper.getClient();

    if (client == null) {
        Log.w(LOG_TAG, "OkHttpWrapper not initialized, " + url);
        return null;
    }/*from w  w  w  .j ava2 s  .  c o  m*/

    InputStream in = null;
    HttpURLConnection connection = null;
    try {

        connection = client.open(new URL(url));

        /*
         * http://stackoverflow.com/questions/10550349/retriving-image-from-server-to-android-app
         * Reading directly from stream sometimes BitmapFactory returns null.
         */

        in = connection.getInputStream();
        BufferedInputStream bis = new BufferedInputStream(in, 8190);

        ByteArrayBuffer baf = new ByteArrayBuffer(50);
        int current = 0;
        while ((current = bis.read()) != -1) {
            baf.append((byte) current);
        }
        byte[] imageData = baf.toByteArray();

        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;

        BitmapFactory.decodeByteArray(imageData, 0, imageData.length, options);

        int reqWidth = maxImageWidth;
        int reqHeight = maxImageHeight;

        options.inJustDecodeBounds = false;

        options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);

        Bitmap bitmap = BitmapFactory.decodeByteArray(imageData, 0, imageData.length, options);

        return bitmap;

    } catch (IOException e) {
        Log.w(LOG_TAG, "I/O error while retrieving bitmap from " + url + "\n" + e.toString());
    } catch (IllegalStateException e) {
        Log.w(LOG_TAG, "Incorrect URL: " + url);
    } catch (Exception e) {
        Log.w(LOG_TAG, "Error while retrieving bitmap from " + url, e);
    } finally {
        if (in != null) {
        }
        if (connection != null) {
        }
    }

    return null;
}

---

From source file:biz.varkon.shelvesom.util.ImageUtilities.java

/**
 * Loads an image from the specified URL with the specified cookie.
 * /*from   www.ja va 2 s  .  c  om*/
 * @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.
 */
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();

                    final double ratio = getScale(in);

                    final BitmapFactory.Options bitmapOptions = new BitmapFactory.Options();
                    bitmapOptions.inSampleSize = getPowerOfTwoForSampleRatio(ratio);
                    bitmapOptions.inDither = true;
                    bitmapOptions.inPreferredConfig = Bitmap.Config.ARGB_8888;

                    expiring.bitmap = BitmapFactory.decodeByteArray(data, 0, data.length, bitmapOptions);
                }
            } catch (IOException e) {
                android.util.Log.e(LOG_TAG, "Could not load image from " + url, e);
            } catch (OutOfMemoryError oom) {
                expiring.bitmap = null;
            } 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.android.browser.BookmarksPageCallbacks.java

static Bitmap getBitmap(Cursor cursor, int columnIndex, Bitmap inBitmap) {
    byte[] data = cursor.getBlob(columnIndex);
    if (data == null) {
        return null;
    }//from w  w w  .  j  av a 2 s. co  m
    Options opts = sOptions.get();
    opts.inBitmap = inBitmap;
    opts.inSampleSize = 1;
    opts.inScaled = false;
    try {
        return BitmapFactory.decodeByteArray(data, 0, data.length, opts);
    } catch (IllegalArgumentException ex) {
        // Failed to re-use bitmap, create a new one
        return BitmapFactory.decodeByteArray(data, 0, data.length);
    }
}

---

From source file:com.silentcircle.contacts.list.ShortcutIntentBuilder.java

private Drawable getPhotoDrawable(byte[] bitmapData, String displayName, String lookupKey) {
    if (bitmapData != null) {
        Bitmap bitmap = BitmapFactory.decodeByteArray(bitmapData, 0, bitmapData.length, null);
        return new BitmapDrawable(mContext.getResources(), bitmap);
    } else {//from w ww  . j  a  v  a  2  s. c om
        return ContactPhotoManagerNew.getDefaultAvatarDrawableForContact(mContext.getResources(), false,
                new DefaultImageRequest(displayName, lookupKey, false));
    }
}

---

From source file:com.android.contacts.common.list.ShortcutIntentBuilder.java

private Drawable getPhotoDrawable(byte[] bitmapData, String displayName, String lookupKey) {
    if (bitmapData != null) {
        Bitmap bitmap = BitmapFactory.decodeByteArray(bitmapData, 0, bitmapData.length, null);
        return new BitmapDrawable(mContext.getResources(), bitmap);
    } else {/* www  .  j  a v a  2 s.  co m*/
        return ContactPhotoManager.getDefaultAvatarDrawableForContact(mContext.getResources(), false,
                new DefaultImageRequest(displayName, lookupKey, false));
    }
}

---

From source file:com.bamobile.fdtks.util.Tools.java

public static Bitmap getBitmapFromURL(Context context, String imageUrl, int width, int height) {
    if (imageUrl != null && imageUrl.length() > 0) {
        HttpClient client = new DefaultHttpClient();
        HttpGet get = new HttpGet(imageUrl.replace(" ", "%20"));
        try {/*from   www.  ja  v  a  2s.  c o m*/
            HttpResponse response = client.execute(get);
            byte[] content = EntityUtils.toByteArray(response.getEntity());
            //get the dimensions of the image
            BitmapFactory.Options opts = new BitmapFactory.Options();
            opts.inJustDecodeBounds = true;
            BitmapFactory.decodeByteArray(content, 0, content.length, opts);

            // get the image and scale it appropriately
            opts.inJustDecodeBounds = false;
            opts.inSampleSize = Math.max(opts.outWidth / width, opts.outHeight / height);

            Bitmap bitmap = BitmapFactory.decodeByteArray(content, 0, content.length, opts);
            if (bitmap == null) {
                return null;
            }

            int scaledWidth = bitmap.getWidth();
            int scaledHeight = bitmap.getHeight();

            if (scaledWidth < scaledHeight) {
                float scale = width / (float) scaledWidth;

                scaledWidth = width;
                scaledHeight = (int) Math.ceil(scaledHeight * scale);
                if (scaledHeight < height) {
                    scale = height / (float) scaledHeight;

                    scaledHeight = height;
                    scaledWidth = (int) Math.ceil(scaledWidth * scale);
                }
            } else {
                float scale = height / (float) scaledHeight;

                scaledHeight = height;
                scaledWidth = (int) Math.ceil(scaledWidth * scale);

                if (scaledWidth < width) {
                    scale = width / (float) scaledWidth;

                    scaledWidth = width;
                    scaledHeight = (int) Math.ceil(scaledHeight * scale);
                }
            }

            Bitmap bmp = Bitmap.createScaledBitmap(bitmap, scaledWidth, scaledHeight, false);

            bitmap.recycle();
            bitmap = null;

            return bmp;
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    return null;
}

---

From source file:free.yhc.feeder.model.Utils.java

/**
 * Decode image from file path(String) or raw data (byte[]).
 * @param image/*from   ww  w . ja  va2 s  .  c  o  m*/
 *   Two types are supported.
 *   String for file path / byte[] for raw image data.
 * @param opt
 * @return
 */
private static Bitmap decodeImageRaw(Object image, BitmapFactory.Options opt) {
    if (image instanceof String) {
        return BitmapFactory.decodeFile((String) image, opt);
    } else if (image instanceof byte[]) {
        byte[] data = (byte[]) image;
        return BitmapFactory.decodeByteArray(data, 0, data.length, opt);
    }
    eAssert(false);
    return null;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• »