Question

我有一个显示人员列表的RecyclerView，我添加了一个onClickListener来循环显示交通灯颜色。所有这一切工作正常，但我试图在onClickListener中设置更新查询以更改数据库中的数据对该行：

    String name = pCursor.getString(pCursor.getColumnIndex(PlayerDetails.PlayerTableEntry.COLUMN_PLAYER_NAME));
    String number = pCursor.getString(pCursor.getColumnIndex(PlayerDetails.PlayerTableEntry.COLUMN_PLAYER_NUMBER));
    Long id = pCursor.getLong(pCursor.getColumnIndex(PlayerDetails.PlayerTableEntry._ID));
    holder.playerView.setTag(id);
    holder.itemView.setTag(id);
    holder.playerView.setText(name + "\n" + number);

    int answer = pCursor.getInt(pCursor.getColumnIndex(PlayerDetails.PlayerTableEntry.COLUMN_IS_PLAYING));

    if (answer == 0) {
        holder.redView.setVisibility(View.VISIBLE);
        holder.greenView.setVisibility(View.INVISIBLE);
        holder.amberView.setVisibility(View.INVISIBLE);

    } else if (answer == 1) {
        holder.greenView.setVisibility(View.VISIBLE);
        holder.amberView.setVisibility(View.INVISIBLE);
        holder.redView.setVisibility(View.INVISIBLE);

    } else if (answer == 2) {
        holder.amberView.setVisibility(View.VISIBLE);
        holder.redView.setVisibility(View.INVISIBLE);
        holder.greenView.setVisibility(View.INVISIBLE);
    }

    holder.allTheViews[0].setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {                                                         
            ManualPlayingChange.notToPlaying(holder);
        }
    });

    holder.allTheViews[1].setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {                 
            ManualPlayingChange.notToPlaying(holder);
        }
    });

    holder.allTheViews[2].setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {                 
            ManualPlayingChange.notToPlaying(holder);
        }
    });

我在想我需要将数据库传递给适配器类？然后运行更新查询，但是有没有办法只对数据库执行更新而不通过它？

SQLite数据库 - 在RecyclerView

0 个答案: