CODEWITHSUNDEEP
javaandroidbluetooth
Tryam
Tryam

Reputation: 405

Can't write hex bytes through bluetooth

I have a byte array, I need to convert it to hex values and send them through bluetooth. Everything I found is to convert bytes to hex string, but I can't do it because I can write only byte arrays or int.

public static byte[][] commandsArray = new byte[5][5];

...
connectedThr.write(ConstantsVariables.commandsArray[i]);

...

public void write(byte[] bytes) {
   try {
      mmOutStream.write(bytes);
   } catch (IOException e) {
      Log.d("CONNECTTHREAD","Could not write: " + e.toString());
   }
}

Everything with sending is ok, I can write simple byte array. Problem is with hex values and how to send them.

UPD: I tried this code, but I have such logs:

09-26 20:39:57.324 26848-26848/shkatovl.btandroid I/TEST: 28
09-26 20:39:57.324 26848-26848/shkatovl.btandroid I/TEST___2: [B@3ae4f930

Formatter formatter = new Formatter();
                    formatter.format("%02x", ConstantsVariables.commandsArray[i][j]);
                    String hex = formatter.toString();
                Log.i("TEST", hex);
                Log.i("TEST___2", hex.getBytes().toString());

Upvotes: 0

Views: 438

Answers (1)

Joakim
Joakim

Reputation: 3284

Have you tried the String class's getBytes() method? There are also Similar methods on the Primitive Object Wrappers (Integer etc.) if that is what you need.

Upvotes: 1

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