如何在Android应用中利用ViewPager撤消左右滑动切换功能

<span >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;   }  } }</span>