Question

I am trying to implement Timer() in the main activity. But, somehow it is not working as I expect. I will show key code section to you.
ERROR :
icon is not changed

public class X extends Activity {
       private Timer timer = new Timer () ;
       setContentView(R.layout.main);
       public void onCreate(Bundle a) {
              //..
              timer.scheduleAtFixedRate( new Device(),  1000, 1000  );

       }

}

public class Device extends TimerTask {
       Image e;
       View w;
       public void run() {
           e = ( ImageView ) w.findViewById(R.id.imageView1);
           if ( isVolited ( ))
                   e.setBackground(w.getResources().getDrawable(R.drawable.icon1));
               else
                   e.setBackground(w.getResources().getDrawable(R.drawable.icon2));

LOG :

 01-29 14:25:51.175: E/TabletStatusBar(2172): closing mini mode apps panel
 01-29 14:25:51.255: E/TabletStatusBar(2172): closing mini mode apps panel
 01-29 14:25:56.510: E/lights(2051): write_int failed to open /sys/class/sec/sec_touchkey/brightness
 01-29 14:25:59.105: E/lights(2051): write_int failed to open /sys/class/sec/sec_touchkey/brightness
 01-29 14:26:00.060: E/TODmobile(3509): onReceive action=android.intent.action.TIME_TICK
 01-29 14:26:00.060: E/TODmobile(3509): hour : 14    minute : 26
 01-29 14:26:00.060: E/DigitalClockWidget(3509): updateWidgets
 01-29 14:26:00.065: E/TODmobile(3509): hour : 14    minute : 26
 01-29 14:26:10.725: E/Watchdog(2051): !@Sync 504

Answer 1

Try this code, it is working

Timer time = new Timer();
TimerTask doThis;

int delay = 1000; // delay for 5 sec.
int period = 1000; // repeat every sec.
doThis = new TimerTask() {
    public void run() {

        e = (ImageView) findViewById(R.id.imageView1);

        runOnUiThread(new Runnable() {
            public void run() {


                e.setImageResource(R.drawable.ic_launcher);

            }

        });

    }
};
time.scheduleAtFixedRate(doThis, delay, period);