Gridview Collapse扩展android

Question

我需要帮助。展开或折叠网格视图。

让我用语言解释，

gidview中有6行。这将在展开时显示。崩溃时Gridview将缩小到一行。

希望这有助于理解我的要求。

Answer 1

expandButton.setonClickListener(new View.onClickListener(){
  @Override
  public void onClick(View v)
  {
   gridlist.addAll(templist); // adding all rows which are stored in temp list
   gridviewadapter.notifyDataSetChanged(); // will reflect and refreshes the ui to show 6 rows
  }

 });

collapseButton.setonClickListener(new View.onClickListener(){
  @Override
  public void onClick(View v)
  {
   gridlist.removeAll();// removing all rows
   gridlist.Add(templist.get(0));
   gridlist.Add(templist.get(1)); //adding only two items to list
   gridviewadapter.notifyDataSetChanged(); // will reflect and refreshes the ui to show 1st row 
 }

});