Gridview崩潰擴大android

Question

我需要幫助。展開或摺疊網格視圖。

讓我用言語解釋，

gidview中有6行。這將在展開中顯示。 Gridview會在收縮時收縮到一行。

希望這有助於理解我的要求。

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 
} 

});