//runOnUiThread

class MyThread extends Thread{

@Override

public void run() {

runOnUiThread(new Runnable() //run on ui thread

{

public void run()

{

Log.i("timeleft",""+timeleft);

//update ui

}

});

}

}

MyThread t1 =new MyThread();

t1.start();

/*

txtv.post(new Runnable() {

public void run(){

//TODO

txtv.setText("hi");

}

});

*/

//other thread

class Multi3 implements Runnable{

public void run(){

System.out.println("thread is running...");

}

Multi3 m1=new Multi3();

Thread t1 =new Thread(m1);

t1.start();