java - How do i start converting my image string file into a byte array so I can store it in my data base?

Question

So this is the image file I got. Now, how do I convert this picturePath into a byte array so I can store it in my database?

Uri selectedImage = data.getData();
                    String[] filePathColumn = {MediaStore.Images.Media.DATA};
                    Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
                    cursor.moveToFirst();
                    int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
                    picturePath = cursor.getString(columnIndex);
                    cursor.close();
                    ivFoodPicture.setImageBitmap(BitmapFactory.decodeFile(picturePath));

Answer 1

You would need to get the Bitmap from the URI.

Pseduo:

Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), selectedImage);

And then to get the byte[] you can do:

   private byte[] toByteArray(@NonNull Bitmap bm)
    {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        bm.compress(Bitmap.CompressFormat.JPEG,100,baos);
        return baos.toByteArray();
    }

But do take care as these could Out Of Memory error with large files. Even base64Encoding these into a String can cause OOM.