How to create a File from byte array and add it to the gallery in android

Question

I have a function::

    public void onPictureTaken(byte[] data, Camera camera) {

    //Creating the Image file here
    }



 public static void addImageToGallery(final String filePath, final Context context) {

        ContentValues values = new ContentValues();

        values.put(MediaStore.Images.Media.DATE_TAKEN, System.currentTimeMillis());
        values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
        values.put(MediaStore.MediaColumns.DATA, filePath);

        context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
    }

How to create a file from data properly.
I want to create a file and get the absolute path of the file
Finally I want to add the image into the gallery, for which I already have the function

did you see its javadocs: "Insert an image and create a thumbnail for it. Returns The URL to the newly created image, or null if the image failed to be stored for any reason." ? — pskink
– pskink, Commented Aug 26, 2017 at 5:14

Palak Darji · Accepted Answer · 2017-08-26 04:50:34Z

Try something like this..

private void createFile(byte[] fileData) {
            try {
                //Create directory..
                File root = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES + "/YOUR_FOLDER_NAME");
                File dir = new File(root + File.separator);
                if (!dir.exists()) dir.mkdir();

                //Create file..
                File file = new File(root + File.separator + "YOUR_IMAGE_NAME");
                file.createNewFile();

                FileOutputStream out = new FileOutputStream(file);
                out.write(fileData);
                out.close();

            }
            catch (FileNotFoundException e) {
                e.printStackTrace();
            }
            catch (IOException e) {
                e.printStackTrace();
            }
        }

RonTLV · Accepted Answer · 2017-08-26 04:57:53Z

2

Creating file from byte array:

FileOutputStream fos = new FileOutputStream("pathname");
fos.write(myByteArray);
fos.close();

or use Apache Commons IO (home):

FileUtils.writeByteArrayToFile(new File("pathname"), myByteArray)

edited Aug 26, 2017 at 4:57

answered Aug 26, 2017 at 4:51

RonTLV

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