Convert byte array to a string - - With Performace Android

Question

Bitmap foto = b.getBitmap();

byte[] bytes = null;
ByteArrayOutputStream ba = new ByteArrayOutputStream();
foto.compress(Bitmap.CompressFormat.JPEG, 100, ba);
foto.recycle();
foto = null;

bytes = ba.toByteArray();

String bBytes = Arrays.toString(bytes);

I'd like this method to return a String of the Byte values. For example, it would be : "12,23,34 ....".

So you expect folks to first translate your question?

devnull
– devnull

2014-03-13 16:32:40 +00:00
Commented Mar 13, 2014 at 16:32 — devnull
– devnull, Commented Mar 13, 2014 at 16:32
I've tried to fix what I've understood in his question.

Manitoba
– Manitoba

2014-03-13 16:35:03 +00:00
Commented Mar 13, 2014 at 16:35 — Manitoba
– Manitoba, Commented Mar 13, 2014 at 16:35
Which method do you mean by this method?!

Mohsen Kamrani
– Mohsen Kamrani

2014-03-13 16:40:50 +00:00
Commented Mar 13, 2014 at 16:40 — Mohsen Kamrani
– Mohsen Kamrani, Commented Mar 13, 2014 at 16:40

peter.petrov · Accepted Answer · 2014-03-13 16:38:10Z

1

Here is how you can do it.

import java.util.Arrays;

public class Test {

    public static void main(String[] args) {
        byte[] bytes = {1,2,3,12};
        String bBytes = Arrays.toString(bytes);
        bBytes = bBytes.replaceAll(" ", "");
        bBytes = bBytes.replaceAll("\\[", "");
        bBytes = bBytes.replaceAll("\\]", "");
        System.out.println(bBytes);     
    }

}

answered Mar 13, 2014 at 16:38

peter.petrov

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3 Comments

ISJ Over a year ago

when small bitmap, works perfect, but when and large bitmap, this conversion takes too long, already thought about doing that with NDK, maybe the performace is excellent. The problem is this line: String bBytes = Arrays.toString(bytes);

peter.petrov Over a year ago

First time you mention about performance issues. Post another question, I would suggest.

ISJ Over a year ago

stackoverflow.com/questions/22385728/…

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