Android ketai Bluetooth read

Hi! I'm using the following code to communicate with arduino on Android, it works great, but can't figure out, how to read the stream until specified character received. Thanks in advance!

import android.content.Intent;

import android.os.Bundle;

import ketai.net.bluetooth.*;

import ketai.ui.*;

import ketai.net.*;


PFont fontMy;

boolean bReleased = true; //no permament sending when finger is tap

KetaiBluetooth bt;

boolean isConfiguring = true;

String info = "";
String asd = "";
KetaiList klist;

ArrayList devicesDiscovered = new ArrayList();


//********************************************************************

// The following code is required to enable bluetooth at startup.

//********************************************************************


void onCreate(Bundle savedInstanceState) {

 super.onCreate(savedInstanceState);

 bt = new KetaiBluetooth(this);

}


void onActivityResult(int requestCode, int resultCode, Intent data) {

 bt.onActivityResult(requestCode, resultCode, data);

}


void setup() {

 size(displayWidth, displayHeight);

 frameRate(10);

 orientation(PORTRAIT);

 background(0);

 

 //start listening for BT connections

 bt.start();

 //at app start select device…

 isConfiguring = true;

 //font size

 fontMy = createFont("SansSerif", 40);

 textFont(fontMy);

}


void draw() {

 //at app start select device

 if (isConfiguring)

 {

  ArrayList names;

  background(78, 93, 75);

  klist = new KetaiList(this, bt.getPairedDeviceNames());

  isConfiguring = false;

 }

 else

 {

  background(0,50,0);

  if((mousePressed) && (bReleased == true))

  {

 //send with BT

  byte[] data = {'s','w','i','t','c','h','\r'};

  bt.broadcast(data);

 //first tap off to send z next message

  bReleased = false;

  }

  if(mousePressed == false)

  {

  bReleased = true; //finger is up

  }

 //print received data

  fill(255);

  noStroke();

  textAlign(LEFT);

  text( info , 20, 104);

 }

}


void onKetaiListSelection(KetaiList klist) {

 String selection = klist.getSelection();

 bt.connectToDeviceByName(selection);

 //dispose of list for now

 klist = null;

}


//Call back method to manage data received

void onBluetoothDataEvent(String who, byte[] data) {

 if (isConfiguring)

 return;

 //received
 
 info = new String(data);

 //clean if string to long

 if(info.length() > 150)

 info = "";

}


// Arduino+Bluetooth+Processing 

// Arduino-Android Bluetooth communication