android - 按下按钮元素 ListView

Question

我有一张带有按钮的表格。我将事件处理程序分配给工作表的元素。当你得到他的位置。但我需要将事件分配给工作表此元素中的按钮。我在适配器中执行此操作并按下。但是我如何确定按下了工作表的哪个元素？

class RecordAdapter extends BaseAdapter implements View.OnClickListener {
    MediaPlayer mediaPlayer;
    private LayoutInflater inflater;
    ArrayList<RecordBean> recordBeans;
    Context ctx;

    public RecordAdapter(final Context ctx, ArrayList<RecordBean> recordBeans) {
        this.recordBeans =recordBeans;
        this.ctx=ctx;
        inflater = LayoutInflater.from(ctx);
    }

    @Override
    public int getCount() {
        return recordBeans.size();
    }

    @Override
    public Object getItem(int position) {
        return position;
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        View view = convertView;
        final ViewHolder holder;
        if (convertView == null) {
            view = inflater.inflate(R.layout.recorditem, parent, false);
            holder = new ViewHolder();
            holder.date = (TextView) view.findViewById(R.id.recordate);
            holder.from = (TextView) view.findViewById(R.id.recordFrom);
            holder.to = (TextView) view.findViewById(R.id.recordTo);
            holder.seekBar = (SeekBar) view.findViewById(R.id.seekBar);
            holder.start = (Button) view.findViewById(R.id.btnStart);
            holder.stop = (Button) view.findViewById(R.id.btnStop);

            view.setTag(holder);
        } else {
            holder = (ViewHolder) view.getTag();
        }
        holder.date.setText(" " + recordBeans.get(position).getDate());
        holder.from.setText(" " + recordBeans.get(position).getFrom());
        holder.to.setText(" " + recordBeans.get(position).getTo());
        holder.start.setOnClickListener(this);
        holder.stop.setOnClickListener(this);
        return view;
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()){
            case R.id.btnStart:
                mediaPlayer = MediaPlayer.create(ctx,Uri.parse(recordBeans.get(3).getFile()));
                mediaPlayer.start();
                break;
        }
    }

    private static class ViewHolder {
        TextView date;
        TextView from;
        TextView to;
        SeekBar seekBar;
        Button start;
        Button stop;
    }
    }
}

而不是 recordBeans.get(3).getFile() 我想写 recordBeans.get(itemPosition).getFile()

现在我对所有按钮都有相同的设置

Answer 1

你可以在你的 getView(...) 方法本身中做到这一点

     holder.start.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                    mediaPlayer = MediaPlayer.create(ctx,Uri.parse(recordBeans.get(position).getFile()));
                    mediaPlayer.start();

            }
        });

对于 stop 也是如此。

     holder.stop.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                  mediaPlayer.stop();

            }
        });