listview滑动监听事件 Android ListView监听滑动事件的方法(详解)

mListView.setOnTouchListener(new View.OnTouchListener() {
      @Override
      public boolean onTouch(View v, MotionEvent event) {
        switch (event.getAction()) {
          case MotionEvent.ACTION_DOWN:
            // 触摸按下时的操作

            break;
          case MotionEvent.ACTION_MOVE:
            // 触摸移动时的操作

            break;
          case MotionEvent.ACTION_UP:
            // 触摸抬起时的操作

            break;
        }
        return false;
      }
 });

  /**
   * Interface definition for a callback to be invoked when the list or grid
   * has been scrolled.
   */
  public interface OnScrollListener {

    /**
     * The view is not scrolling. Note navigating the list using the trackball counts as
     * being in the idle state since these transitions are not animated.
     */
    public static int SCROLL_STATE_IDLE = 0;

    /**
     * The user is scrolling using touch, and their finger is still on the screen
     */
    public static int SCROLL_STATE_TOUCH_SCROLL = 1;

    /**
     * The user had previously been scrolling using touch and had performed a fling. The
     * animation is now coasting to a stop
     */
    public static int SCROLL_STATE_FLING = 2;

    /**
     * Callback method to be invoked while the list view or grid view is being scrolled. If the
     * view is being scrolled, this method will be called before the next frame of the scroll is
     * rendered. In particular, it will be called before any calls to
     * {@link Adapter#getView(int, View, ViewGroup)}.
     *
     * @param view The view whose scroll state is being reported
     *
     * @param scrollState The current scroll state. One of
     * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}.
     */
    public void onScrollStateChanged(AbsListView view, int scrollState);

    /**
     * Callback method to be invoked when the list or grid has been scrolled. This will be
     * called after the scroll has completed
     * @param view The view whose scroll state is being reported
     * @param firstVisibleItem the index of the first visible cell (ignore if
     *    visibleItemCount == 0)
     * @param visibleItemCount the number of visible cells
     * @param totalItemCount the number of items in the list adaptor
     */
    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount,
        int totalItemCount);
  }

if (firstVisibleItem + visibleItemCount == totalItemCount && totalItemCount > 0) {
// 滚动到最后一行了
}

if (firstVisibleItem > oldVisibleItem) {
// 向上滑动
}
if (firstVisibleItem < oldVisibleItem) {
// 向下滑动
}
oldVisibleItem = firstVisibleItem;

ListView也为我们提供了一些封装好了的方法，来获取item的位置信息

// 获取当前可见区域内第一个item的id
mListView.getFirstVisiblePosition();

// 获取当前可见区域内最后一个item的id
mListView.getLastVisiblePosition();