Android-使用ScrollView实现布局自动滚动

1、  获得ScrollView对象和ScrollView中包含的布局对象

mScrollView = (ScrollView) findViewById(R.id.l_rp_ques_main_scrollview);

mLayout = (LinearLayout) findViewById(R.id.l_rp_ques_main_scrolllayout);

2、定义一个Handler

private final mHandler = newHandler();

 

3、  实现一个线程

 1     /**
 2      * 滚屏的线程
 3      */
 4     private Runnable ScrollRunnable = new Runnable() {
 5 
 6         @SuppressLint("NewApi")
 7         @Override
 8         public void run() {
 9             // TODO Auto-generated method stub
10             int off = mLayout.getMeasuredHeight() - mScrollView.getHeight();// 判断高度
11             if (off > 0) {
12                 mScrollView.scrollBy(0, 50);
13                 if (mScrollView.getScaleY() == off) {
14                     Thread.currentThread().interrupt();
15                 } else {
16                         mHandler.postDelayed(this, 1000);
17                 }
18             }
19         }
20     };

4、  开始滚动

mHandler.post(ScrollRunnable);

5、  暂停滚动

mHandler.removeCallbacks(ScrollRunnable);

 

6、ScrollView强制滑到底部 
mScrollView.fullScroll(View.FOCUS_DOWN)