1，

ScrollView sc = (ScrollView) findViewById(R.id.scroll);//获得scroll对象 
 LinearLayout mlayout = (LinearLayout) findViewById(R.id.mlayout);//scrollView中包含的布局对象 

2，定义一个Handler private final Handler mHandler = new Handler();

3,实现一个线程 Java代码

        private Runnable ScrollRunnable= new Runnable() {  
   @Override  
   public void run() {  
int off = mlayout.getMeasuredHeight() - sc.getHeight();//判断高度
if (off > 0) {  
   sc.scrollBy(0, 30);  
   if (sc.getScrollY() == off) {  
   Thread.currentThread().interrupt();  
   } else {  
   mHandler.postDelayed(this, 1000);  
   }  
   }  
   }  
   };

4，开始滚动 mHandler.post(ScrollRunnable);

5，暂停滚动 mHandler.removeCallbacks(ScrollRunnable);
ScrollView强制滑到底部 scroll.fullScroll(View.FOCUS_DOWN)