如何在Android应用中利用ViewPager撤消左右滑动切换功能

import android.content.Context; 
import android.support.v4.view.ViewPager; 
import android.util.AttributeSet; 
import android.view.MotionEvent; 
public class IndexViewPager extends ViewPager { 
 private boolean isCanScroll = false; 
 public IndexViewPager(Context context) { 
  super(context); 
 } 
 public IndexViewPager(Context context, AttributeSet attrs) { 
  super(context, attrs); 
 } 
 public void setScanScroll(boolean isCanScroll) { 
  this.isCanScroll = isCanScroll; 
 } 
 @Override 
 public void scrollTo(int x, int y) { 
  super.scrollTo(x, y); 
 } 
 @Override 
 public boolean onTouchEvent(MotionEvent arg0) { 
  // TODO Auto-generated method stub 
  if (isCanScroll) { 
   return super.onTouchEvent(arg0); 
  } else { 
   return false; 
  } 
 } 
 @Override 
 public void setCurrentItem(int item, boolean smoothScroll) { 
  // TODO Auto-generated method stub 
  super.setCurrentItem(item, smoothScroll); 
 } 
 @Override 
 public void setCurrentItem(int item) { 
  // TODO Auto-generated method stub 
  super.setCurrentItem(item); 
 } 
 @Override 
 public boolean onInterceptTouchEvent(MotionEvent arg0) { 
  // TODO Auto-generated method stub 
  if (isCanScroll) { 
   return super.onInterceptTouchEvent(arg0); 
  } else { 
   return false; 
  } 
 } 
}