Question

我有一个水平recyclerView，当我点击每个元素时，LinearLayout里面有setVisibility(VISIBLE)，这很好。

所以我现在想要的是，当我点击当前项目LinearLayout setVisibilty(VISIBLE)（同上）时，如果我之前点击了另一个项目，LinearLayout里面它setVisibility(GONE)。

到目前为止我尝试了什么

 viewHolder.container.setOnClickListener(new View.OnClickListener() {
  @Override
   public void onClick(View v) {
   if(viewHolder.linearLayout.getVisibility() == View.VISIBLE){
        //hide
        viewHolder.linearLayout.setVisibility(View.GONE);
    }else{
        int nowClickedId = 0;
        //hide LinearLayout of other position that clicked before
        if(nowClickedId !=  position){
            viewHolder.linearLayout.setVisibility(View.GONE);
        }

         //show for current clicked item
          viewHolder.linearLayout.setVisibility(View.VISIBLE);

         //get current item position store at the array
          nowClickedId = viewHolder.getAdapterPosition();
        }
    }
});

到目前为止，我只能控制当前位置的项目，如何控制之前点击的项目？

Answer 1

创建一个变量来存储所单击项目的位置并将其全局声明。

 Sheets("Sheet1").Protect "password", UserInterFaceOnly:= True

现在，只要点击位置，你的视图中就会将它存储到全局变量并调用private int nowclicked=-1;，通知适配器数据已被更改。

notifyDataSetChanged()

在private class Sample extends RecyclerView.ViewHolder{ public Sample(View itemView) { super(itemView); viewHolder.container.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { nowclicked = getAdapterPosition(); notifyDataSetChanged(); } }); } }中，如果位置相等，则显示onBindViewHolder，否则将其隐藏。

linearLayout

Answer 2

尝试在onBindViewHolder（）方法中编写此代码并确保编写

    set @up_counter = 1
    set @dynamic_sql_1 = 'UPDATE '
    ' material_forecast_series sfs '
    ' JOIN material_forecast sf ON sfs.F_ID = sf.F_ID '
    ' JOIN material_demand sd ON sd.date_ID = sf.date_ID '
    ' AND sd.D_ID = sfs.D_ID '
    ' JOIN material_demand_series ds ON sfs.D_ID = ds.D_ID '
    ' JOIN OMG_membership om ON ds.item_ID = om.item_ID '
    ' JOIN material_FE sfe ON sfe.F_ID = sf.F_ID '
    'SET sfe.v'

    set @dynamic_sql_2 = CONCAT(@up_counter,' = IF(sf.v',',@up_counter,' = 0, NULL, (sd.quantity - sf.v',@up_counter,') / sf.v',@up_counter,')')

    Set @dynamic_sql_2 = '  WHERE '
    'sfs.forecast_ID = 15 '
    ' AND ds.demand_ID = 9 '
    ' AND ds.O_ID = 2 '
    ' AND om.OG_ID = 318 '
    ' AND sd.date_ID = 275 '
    ' AND sfe.date_ID = %s '

    Set @final_sql = CONCAT(@dynamic_sql_1,@dynamic_sql_2,@dynamic_sql_2)

    PREPARE stmt1 FROM @final_sql; 
    EXECUTE stmt1 ; 
    DEALLOCATE PREPARE stmt1; 

    set @up_counter = @up_counter + 1

根据职位，你可以做任何你想做的事。

如何控制recyclerview中的其他项目？

2 个答案: