how to implement handler pause on another activity running this activity finish next continue handler

Question

hi i am implementing gallery application in this gallery circular order draging left to right and right to left scrolling i am using one handler on gallery rotation another activity is gallery item clicking handler automatically running display the gallery image another action is click the gallery image display the clicked image my problem gallery image clicking and scorring stop handler and not scrolling clicking next continue to handler this functionality how can implemented please some suggestion its urgent some solution

clicking activity

 g.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View v, int position, long id) 
            {
                try {
                    imageid=position;
                    ((ImageView)findViewById(R.id.ImageViewlarge)).setImageResource(mImageIds[position]);
                    ((TextView)findViewById(R.id.TextViewImageName)).setText(imgNames[position]);
                     mp = MediaPlayer.create(SeaSpell.this,audioTrack[position]);

                        } catch (Exception e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                            }

                }
            });

handler gallery rotation

 class RefreshHandler extends Handler {


        @Override
        public void handleMessage(Message msg) {            
            SeaSpell.this.updateUI();
        }

        public void sleep(long delayMillis) {

            this.removeMessages(0);         
            if(isUpdateUI)
                sendMessageDelayed(obtainMessage(0), delayMillis);
        }
}
public void updateUI(){
    try
    {
     getImages();// this method is gallery  rotation in circular manner
        mRedrawHandler.sleep(3000);

    }

how can solve this problem please send some solution its urgent