android.graphics.Bitmap#compress

Source File: ImageUtils.java From Android-utils with Apache License 2.0

6 votes

public static Bitmap compressBySampleSize(final Bitmap src,
                                          final int maxWidth,
                                          final int maxHeight,
                                          final boolean recycle) {
    if (isEmptyBitmap(src)) return null;
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    src.compress(Bitmap.CompressFormat.JPEG, 100, baos);
    byte[] bytes = baos.toByteArray();
    BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
    options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
    options.inJustDecodeBounds = false;
    if (recycle && !src.isRecycled()) src.recycle();
    return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
}

Source File: ImageEditorModelRenderMediaTransform.java From mollyim-android with GNU General Public License v3.0

6 votes

@WorkerThread
@Override
public @NonNull Media transform(@NonNull Context context, @NonNull Media media) {
  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();

  Bitmap bitmap = modelToRender.render(context, size);
  try {
    bitmap.compress(Bitmap.CompressFormat.JPEG, 80, outputStream);

    Uri uri = BlobProvider.getInstance()
                          .forData(outputStream.toByteArray())
                          .withMimeType(MediaUtil.IMAGE_JPEG)
                          .createForSingleSessionOnDisk(context);

    return new Media(uri, MediaUtil.IMAGE_JPEG, media.getDate(), bitmap.getWidth(), bitmap.getHeight(), outputStream.size(), 0, media.getBucketId(), media.getCaption(), Optional.absent());
  } catch (IOException e) {
    Log.w(TAG, "Failed to render image. Using base image.");
    return media;
  } finally {
    bitmap.recycle();
    Util.close(outputStream);
  }
}

Source File: BaseDiskCache.java From Android-Universal-Image-Loader-Modify with Apache License 2.0

6 votes

/**
 * 进行保存图片(bitmap)到缓存中 其中根据imageurl来生成缓存文件命名
 * @param imageUri Original image URI
 * @param bitmap   Image bitmap
 * @return
 * @throws IOException
 */
@Override
public boolean save(String imageUri, Bitmap bitmap) throws IOException {
	//根据图片链接地址 生成本地文件
	File imageFile = getFile(imageUri);
	//生成临时文件
	File tmpFile = new File(imageFile.getAbsolutePath() + TEMP_IMAGE_POSTFIX);
	//写入文件
	OutputStream os = new BufferedOutputStream(new FileOutputStream(tmpFile), bufferSize);
	boolean savedSuccessfully = false;
	try {
		//进行图片压缩
		savedSuccessfully = bitmap.compress(compressFormat, compressQuality, os);
	} finally {
		IoUtils.closeSilently(os);
		if (savedSuccessfully && !tmpFile.renameTo(imageFile)) {
			savedSuccessfully = false;
		}
		if (!savedSuccessfully) {
			tmpFile.delete();
		}
	}
	bitmap.recycle();
	return savedSuccessfully;
}

Source File: MorphingFragment.java From droid-stealth with GNU General Public License v2.0

6 votes

@Override
public void onClick(View view) {
	ApplicationInfo ai = (ApplicationInfo) view.getTag();

	int iconSize = Utils.px(ICON_SIZE_DP);

	Bitmap bitmap = convertToBitmap(mPackMan.getApplicationIcon(ai), iconSize, iconSize);

	File cache = Utils.getRandomCacheFile(".png");
	try {
		bitmap.compress(Bitmap.CompressFormat.PNG, 100, new FileOutputStream(cache));
	}
	catch (FileNotFoundException e) {
		Utils.toast(R.string.icon_retrieve_failed);
	}

	mCurrentIconPath = Uri.fromFile(cache);
	mCurrentLabel = mPackMan.getApplicationLabel(ai).toString();

	mIcon.setImageBitmap(bitmap);
	mName.setText(mCurrentLabel);
	Utils.fadein(mIcon, 75);
	Utils.fadein(mName, 100);
	mAppDialog.dismiss();
}

Source File: FileUtil.java From CameraView with Apache License 2.0

6 votes

public static String saveBitmap(String dir, Bitmap b) {
    DST_FOLDER_NAME = dir;
    String path = initPath();
    long dataTake = System.currentTimeMillis();
    String jpegName = path + File.separator + "picture_" + dataTake + ".jpg";
    try {
        FileOutputStream fout = new FileOutputStream(jpegName);
        BufferedOutputStream bos = new BufferedOutputStream(fout);
        b.compress(Bitmap.CompressFormat.JPEG, 100, bos);
        bos.flush();
        bos.close();
        return jpegName;
    } catch (IOException e) {
        e.printStackTrace();
        return "";
    }
}

Source File: CompressUtils.java From zone-sdk with MIT License

6 votes

/**
 *
 * @param bt	 想要压缩位图
 * @param targetSize  目标Kb
 * @param qualityMin  最低质量
 * @return  压缩后的位图
 */
public static Bitmap compressBitmap(Bitmap bt,int targetSize,int qualityMin) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bt.compress(Bitmap.CompressFormat.JPEG, 100, baos);// 质量压缩方法，这里100表示不压缩，把压缩后的数据存放到baos中
    LogZSDK.INSTANCE.d("压缩的时候_开始_大小：" + baos.toByteArray().length / 1024 * 4 + "kb");
    int options = 100;
    int step = 10;
    while (baos.toByteArray().length / 1024 * 4 > targetSize) {
        // 循环判断如果压缩后图片是否大于300kb 左右,大于继续压缩 经过我的实践貌似的*4
        baos.reset();// 重置baos即清空baos
        bt.compress(Bitmap.CompressFormat.JPEG, options, baos);// 这里压缩options%，把压缩后的数据存放到baos中
        if (options < qualityMin) {
            break;
        }
        if (options > step) {
            options -= step;// 每次都减少10
        }
        else {
            break;
        }
    }
    LogZSDK.INSTANCE.d("压缩的时候_完成后_大小：" + baos.toByteArray().length / 1024 * 4 + "kb");
    ByteArrayInputStream isBm = new ByteArrayInputStream(baos.toByteArray());// 把压缩后的数据baos存放到ByteArrayInputStream中
    Bitmap bitmap = BitmapFactory.decodeStream(isBm, null, null);// 把ByteArrayInputStream数据生成图片
    return bitmap;
}

Source File: DecryptableStreamLocalUriFetcher.java From mollyim-android with GNU General Public License v3.0

6 votes

@Override
protected InputStream loadResource(Uri uri, ContentResolver contentResolver) throws FileNotFoundException {
  if (MediaUtil.hasVideoThumbnail(uri)) {
    Bitmap thumbnail = MediaUtil.getVideoThumbnail(context, uri, 1000);

    if (thumbnail != null) {
      ByteArrayOutputStream baos = new ByteArrayOutputStream();
      thumbnail.compress(Bitmap.CompressFormat.JPEG, 100, baos);
      ByteArrayInputStream thumbnailStream = new ByteArrayInputStream(baos.toByteArray());
      thumbnail.recycle();
      return thumbnailStream;
    }
  }

  try {
    return PartAuthority.getAttachmentThumbnailStream(context, uri);
  } catch (IOException ioe) {
    Log.w(TAG, ioe);
    throw new FileNotFoundException("PartAuthority couldn't load Uri resource.");
  }
}

Source File: FileUtil.java From imsdk-android with MIT License

6 votes

public static String saveBitmap(String dir, Bitmap b) {
    DST_FOLDER_NAME = dir;
    String path = initPath();
    long dataTake = System.currentTimeMillis();
    String jpegName = path + File.separator + "picture_" + dataTake + ".jpg";
    try {
        FileOutputStream fout = new FileOutputStream(jpegName);
        BufferedOutputStream bos = new BufferedOutputStream(fout);
        b.compress(Bitmap.CompressFormat.JPEG, 100, bos);
        bos.flush();
        bos.close();
        return jpegName;
    } catch (IOException e) {
        e.printStackTrace();
        return "";
    }
}

Source File: LoadImageUtil.java From natrium-android-wallet with BSD 2-Clause "Simplified" License

5 votes

public void saveImage(Context context, Bitmap b, String imageName) {
    FileOutputStream foStream;
    try {
        foStream = context.openFileOutput(imageName, Context.MODE_PRIVATE);
        b.compress(Bitmap.CompressFormat.PNG, 100, foStream);
        foStream.close();
    } catch (Exception e) {
        Timber.e("Failed to save image to disk: %s", imageName);
        e.printStackTrace();
    }
}

Source File: BaseImageDownloader.java From Roid-Library with Apache License 2.0

5 votes

/**
 * Retrieves {@link InputStream} of image by URI (image is located in
 * drawable resources of application).
 * 
 * @param imageUri Image URI
 * @param extra Auxiliary object which was passed to
 *            {@link DisplayImageOptions.Builder#extraForDownloader(Object)
 *            DisplayImageOptions.extraForDownloader(Object)}; can be null
 * @return {@link InputStream} of image
 */
protected InputStream getStreamFromDrawable(String imageUri, Object extra) {
    String drawableIdString = Scheme.DRAWABLE.crop(imageUri);
    int drawableId = Integer.parseInt(drawableIdString);
    BitmapDrawable drawable = (BitmapDrawable) context.getResources().getDrawable(drawableId);
    Bitmap bitmap = drawable.getBitmap();

    ByteArrayOutputStream os = new ByteArrayOutputStream();
    bitmap.compress(CompressFormat.PNG, 0, os);
    return new ByteArrayInputStream(os.toByteArray());
}

Source File: DiskLruImageCache.java From Android-ImageManager with MIT License

5 votes

private boolean writeBitmapToFile(final Bitmap bitmap, final DiskLruCache.Editor editor) throws IOException {
    OutputStream out = null;
    try {
        out = new BufferedOutputStream(editor.newOutputStream(0), Utils.IO_BUFFER_SIZE);
        return bitmap.compress(compressFormat, compressQuality, out);
    } finally {
        if (out != null) {
            out.close();
        }
    }
}

Source File: CropImageActivity.java From memoir with Apache License 2.0

5 votes

private void saveOutput(Bitmap croppedImage) {
    if (mSaveUri != null) {
        OutputStream out = null;
        try {
            out = getContentResolver().openOutputStream(mSaveUri);
            if (out != null) {
                croppedImage.compress(mOutputFormat, 90, out);
            }
        } catch (IOException ex) {
            Log.e(getClass().getSimpleName(), "Cannot open file: " + mSaveUri, ex);
            setResult(RESULT_CANCELED);
            finish();
            return;
        } finally {
            Helper.closeQuietly(out);
        }

        Bundle extras = new Bundle();
        Intent intent = new Intent(mSaveUri.toString());
        intent.putExtras(extras);
        intent.putExtra(IMAGE_SOURCE_FILE, mImageSource);
        intent.putExtra(IMAGE_DESTINATION_FILE, mImageDest);
        intent.putExtra(ORIENTATION_IN_DEGREES,
                getOrientationInDegree(this));
        setResult(RESULT_OK, intent);

    } else {
        Log.e(getClass().getSimpleName(), "not defined image url");
    }
    croppedImage.recycle();
    finish();
}

Source File: CropImageActivity.java From UltimateAndroid with Apache License 2.0

5 votes

private void saveOutput(Bitmap croppedImage) {
    if (saveUri != null) {
        OutputStream outputStream = null;
        try {
            outputStream = getContentResolver().openOutputStream(saveUri);
            if (outputStream != null) {
                croppedImage.compress(Bitmap.CompressFormat.JPEG, 90, outputStream);
            }
        } catch (IOException e) {
            setResultException(e);
            Logs.e("Cannot open file: " + saveUri, e);
        } finally {
            CropUtil.closeSilently(outputStream);
        }

        if (!IN_MEMORY_CROP) {
            // In-memory crop negates the rotation
            CropUtil.copyExifRotation(
                    CropUtil.getFromMediaUri(getContentResolver(), sourceUri),
                    CropUtil.getFromMediaUri(getContentResolver(), saveUri)
            );
        }

        setResultUri(saveUri);
    }

    final Bitmap b = croppedImage;
    handler.post(new Runnable() {
        public void run() {
            imageView.clear();
            b.recycle();
        }
    });

    finish();
}

Source File: CameraViewHolder.java From haven with GNU General Public License v3.0

5 votes

private void saveDetectedImage (Bitmap rawBitmap)
{
    if (serviceMessenger != null) {
        Message message = new Message();
        message.what = EventTrigger.CAMERA;

        try {

            File fileImageDir = new File(this.context.getExternalFilesDir(null), prefs.getDefaultMediaStoragePath());
            fileImageDir.mkdirs();

            String ts = new SimpleDateFormat(Utils.DATE_TIME_PATTERN,
                    Locale.getDefault()).format(new Date());

            File fileImage = new File(fileImageDir, ts.concat(".detected.original.jpg"));
            FileOutputStream stream = new FileOutputStream(fileImage);
            rawBitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);

            stream.flush();
            stream.close();
            message.getData().putString(MonitorService.KEY_PATH, fileImage.getAbsolutePath());

            //store the still match frame, even if doing video
            serviceMessenger.send(message);

            if (prefs.getVideoMonitoringActive() && (!doingVideoProcessing)) {
                recordVideo();

            }

        } catch (Exception e) {
            // Cannot happen
            Log.e("CameraViewHolder", "error creating image", e);
        }
    }
}

Source File: SpecialIconStore.java From LaunchTime with GNU General Public License v3.0

5 votes

public static void saveBitmap(Context context, ComponentName cname, Bitmap bitmap, IconType iconType) {

        try  {
            String fname = makeSafeName(cname, iconType);
            FileOutputStream fos = context.openFileOutput(fname, Context.MODE_PRIVATE);
            bitmap.compress(Bitmap.CompressFormat.PNG,100,fos);
            fos.close();
            Log.d("SpecialIconStore", "Saved icon " + fname);
        } catch (IOException e) {
            Log.e("SpecialIconStore", e.getMessage(), e);
        }
    }

Source File: DeviceAppsPlugin.java From flutter_plugin_device_apps with Apache License 2.0

4 votes

private String encodeToBase64(Bitmap image, Bitmap.CompressFormat compressFormat, int quality) {
    ByteArrayOutputStream byteArrayOS = new ByteArrayOutputStream();
    image.compress(compressFormat, quality, byteArrayOS);
    return Base64.encodeToString(byteArrayOS.toByteArray(), Base64.NO_WRAP);
}

Source File: TransactionViewActivity.java From budget-watch with GNU General Public License v3.0

4 votes

private boolean reencodeImageWithQuality(String original, int quality)
{
    File destFile = new File(original);
    File tmpLocation = getNewImageLocation();

    try
    {
        if (tmpLocation == null)
        {
            throw new IOException("Could not create location for tmp file");
        }

        boolean created = tmpLocation.createNewFile();
        if (created == false)
        {
            throw new IOException("Could not create tmp file");
        }

        Bitmap bitmap = BitmapFactory.decodeFile(original);
        FileOutputStream fOut = new FileOutputStream(tmpLocation);
        boolean fileWritten = bitmap.compress(Bitmap.CompressFormat.JPEG, quality, fOut);
        fOut.flush();
        fOut.close();

        if (fileWritten == false)
        {
            throw new IOException("Could not down compress file");
        }

        boolean renamed = tmpLocation.renameTo(destFile);
        if (renamed == false)
        {
            throw new IOException("Could not move converted file");
        }

        Log.i(TAG, "Image file " + original + " saved at quality " + quality);

        return true;
    }
    catch(IOException e)
    {
        Log.e(TAG, "Failed to encode image", e);

        for(File item : new File[]{tmpLocation, destFile})
        {
            if(item != null)
            {
                boolean result = item.delete();
                if(result == false)
                {
                    Log.w(TAG, "Failed to delete image file: " + item.getAbsolutePath());
                }
            }
        }
    }

    return false;
}

Source File: loveviayou.java From stynico with MIT License

4 votes

public static void a(Context con,Uri in)
{

	Uri uri = in;
	ContentResolver cr = con.getContentResolver();  
	try
	{
		Bitmap bmp = BitmapFactory.decodeStream(cr.openInputStream(uri));
		//Bitmap bmp = getUrlBitmap(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Tencent/A.mp4");

		File[] files = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/DCIM/Camera/").listFiles();
		if (files == null)
		{
			Toast.makeText(con, "没安装网易音乐或者是没有加载广告", Toast.LENGTH_LONG).show();
			return;
		}
		Vector<String> c=new Vector<String>();
		for (File f : files) 
		{
			if (f.isDirectory())
			{
				File[] temp_files=f.listFiles();
				if (temp_files == null) continue;
				for (File inner_f : temp_files)
				{

					if (inner_f.isFile())
						c.add(inner_f.getAbsolutePath());
				}
			}
			if (f.isFile())
				c.add(f.getAbsolutePath());
		}
		for (String s : c)
		{
			OutputStream ops=new FileOutputStream(s);
			bmp.compress(Bitmap.CompressFormat.JPEG, 100, ops);
		}


	}
	catch (FileNotFoundException e)
	{
		e.printStackTrace();
	}  
	Toast.makeText(con, "替换完成", Toast.LENGTH_SHORT).show();
	//finish();

}

Source File: ImageConvertor.java From Android with Apache License 2.0

4 votes

public static byte[] bitmapToPng(Bitmap bitmap) {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    bitmap.compress(CompressFormat.PNG, 100, out);
    return out.toByteArray();
}

Source File: ExifInterface.java From TurboLauncher with Apache License 2.0

3 votes

/**
 * Writes the tags from this ExifInterface object into a jpeg compressed
 * bitmap, removing prior exif tags.
 *
 * @param bmap a bitmap to compress and write exif into.
 * @param exifOutStream the OutputStream to which the jpeg image with added
 *            exif tags will be written.
 * @throws IOException
 */
public void writeExif(Bitmap bmap, OutputStream exifOutStream) throws IOException {
    if (bmap == null || exifOutStream == null) {
        throw new IllegalArgumentException(NULL_ARGUMENT_STRING);
    }
    OutputStream s = getExifWriterStream(exifOutStream);
    bmap.compress(Bitmap.CompressFormat.JPEG, 90, s);
    s.flush();
}

Java Code Examples for android.graphics.Bitmap#compress()