안드로이드에서 버튼 텍스트 3초마다 변경하기

출처는 스택오버플로닷컴

public class ButtonTest extends Activity {


    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        Button subject = new Button(this);

        subject.setLayoutParams((new LayoutParams(LayoutParams.WRAP_CONTENT,

                LayoutParams.WRAP_CONTENT)));

        subject.setText("A");

        setContentView(subject);


        Timer timing = new Timer();

        timing.schedule(new Updater(subject), 3000, 3000);

    }


    private static class Updater extends TimerTask {

        private final Button subject;


        public Updater(Button subject) {

            this.subject = subject;

        }


        @Override

        public void run() {

            subject.post(new Runnable() {


                public void run() {

                    subject.setText(subject.getText() + "A");

                }

            });

        }

    }

}