Only the original thread that created a view hierarchy can touch its views. On android [duplicate]

Answer 1

This exception is not coming due to title.clearComposingText(). even this line is not useful ,we can remove this line. This exception is coming in to title() function because a non UI-Thread is trying to modify view. so we need to call this function in a UI Thread or Handler.

private void startingUp() {
        Thread timer = new Thread() { //new thread         
            public void run() {
                boolean b = true;
                try {
                    do {
                        counter++;

                        sleep(1000);
                        runOnUiThread(new Runnable() {

                            @Override
                            public void run() {
                                  title();
                                //title.clearComposingText();//not useful

                            }
                        });


                    }
                    while (b == true);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                finally {
                }
            };
        };
        timer.start();
    }