public void mOnClick(View v) { switch (v.getId()) { case R.id.btn3: mItem.clear(); for (int i = 1001; i <= 1003; i++) { mItem.add(Integer.toString(i)); } mAdapter.notifyDataSetChanged(); break; case R.id.btn10: mItem.clear(); for (int i = 1001; i <= 1010; i++) { mItem.add(Integer.toString(i)); } mAdapter.notifyDataSetChanged(); break; case R.id.btnalways: mList.setOverScrollMode(View.OVER_SCROLL_ALWAYS); break; case R.id.btnnever: mList.setOverScrollMode(View.OVER_SCROLL_NEVER); break; case R.id.btnifscroll: mList.setOverScrollMode(View.OVER_SCROLL_IF_CONTENT_SCROLLS); break; } }