TextSwitcher를 공부하던중 글자들이 나오는 속도는 어떻게 변화할수 있는지가 궁금합니다.^^

가령, 한번 TextSwitcher를 해놓으니까 변하는 속도는 조절이 불가능하더군요. (가령 10초후 자동 변환등...)

어떻게 해야할지.... 머리가 점점 굳어가네요 ㅠㅠ

++++++++++++++++++++++++++JAVA
package my.Wt;  
 
import android.app.Activity;  
import android.os.Bundle;  
import android.view.Gravity;  
import android.view.View;  
import android.view.View.OnClickListener;  
import android.view.animation.Animation;  
import android.view.animation.AnimationUtils;  
import android.widget.TextSwitcher;  
import android.widget.TextView;  
import android.widget.ViewSwitcher.ViewFactory;  
 
public class Wt extends Activity implements ViewFactory {  
    private TextSwitcher timeSwitcher;  
 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.main);  
          
        timeSwitcher = (TextSwitcher) findViewById(R.id.time_switcher);  
        timeSwitcher.setFactory(this);  
        timeSwitcher.setOnClickListener(new OnClickListener() {  
            public void onClick(View v) {  
                Wt.this.nextText();  
            }  

        });  
        Animation in = AnimationUtils.loadAnimation(this,  
                android.R.anim.fade_in);  
        Animation out = AnimationUtils.loadAnimation(this,  
                android.R.anim.fade_out);  
        timeSwitcher.setInAnimation(in);  
        timeSwitcher.setOutAnimation(out);  
        timeSwitcher.setText("1번");   
      
    }  
 
    protected void nextText() {  
        timeSwitcher.setText("2번");  
        timeSwitcher.setText("3번");
        timeSwitcher.setText("4번");
        timeSwitcher.setText("5번");
    }  
    public View makeView() {  
        TextView t = new TextView(this);  
        t.setGravity(Gravity.TOP | Gravity.CENTER_HORIZONTAL);  
        t.setTextSize(12);  
      
        return t;  
    }  
}