탭위젯의 tab 안의 공백을 어떻게 줄이거나 없앨수 있을까요?(그림참조)

 

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public class TabDemo extends Activity {
 @Override
 public void onCreate(Bundle savedInstanceState)  {
  super.onCreate(savedInstanceState);
  
  setContentView(R.layout.main);

  TabHost tabs=(TabHost)findViewById(R.id.tabhost);
  
  tabs.setup();
  
  TabHost.TabSpec spec=tabs.newTabSpec("tag1");
  
  spec.setContent(R.id.tab1);
  spec.setIndicator("시계");
  tabs.addTab(spec);
  
  spec=tabs.newTabSpec("tag2");
  spec.setContent(R.id.tab2);
  spec.setIndicator("버튼");
  tabs.addTab(spec);
  
  spec=tabs.newTabSpec("tag3");
  spec.setContent(R.id.tab3);
  spec.setIndicator("Start");
  tabs.addTab(spec);
  this.setupButton();
 }
 
  private void setupButton()
    {
      Button b = (Button)this.findViewById(R.id.startFAButtonId);
      b.setOnClickListener(
        new Button.OnClickListener() {
          public void onClick(View v)
          {
            parentButtonClicked(v);
          }
        });
    }
    private void parentButtonClicked(View v)
    {
      animate();
     
    }
    private void animate()
    {
      ImageView imgView = (ImageView)findViewById(R.id.imageView);
      imgView.setVisibility(ImageView.VISIBLE);
      imgView.setBackgroundResource(R.drawable.frame_animation);

      AnimationDrawable frameAnimation =
        (AnimationDrawable) imgView.getBackground();

      if (frameAnimation.isRunning())
      {       frameAnimation.stop();     }
      else
      {
        frameAnimation.stop();
        frameAnimation.start();
      }

    
       
       }

  
}