自定義適配器要重寫4個方法:
//返回數量 public int getCount() { return list.size(); } //返回position處的內容 public Object getItem(int position) { return list.get(position); } //返回position處的索引 public long getItemId(int position) { return position; } //返回具體佈局 public View getView(int position, View convertView, ViewGroup parent) { return convertView; }