ListView中的CounDownTimer

Question

我想根据特定的“剩余时间”变量为ListView中的每一行添加一个Timer。每行已经有一些其他元素，我想为它们添加一个计时器。

这是我的适配器类：

public class TicketAdapter extends ArrayAdapter<TicketModel> implements View.OnClickListener{

    private ArrayList<TicketModel> dataSet;
    Context mContext;

    // View lookup cache
    private static class ViewHolder {
        TextView txtName;
        TextView txtType;
        TextView txtTempsRestant;
        TextView txtDate;
        TextView txtSLA;
        ImageView info;
        RelativeLayout layout;

    }



    public TicketAdapter(ArrayList<TicketModel> data, Context context) {
        super(context, R.layout.row_item_ticket, data);
        this.dataSet = data;
        this.mContext=context;

    }


    @Override
    public void onClick(View v) {
        int position=(Integer) v.getTag();
        Object object= getItem(position);
        TicketModel TicketModel=(TicketModel)object;

        switch (v.getId())
        {
            case R.id.item_info:

                Snackbar.make(v, "is Late? : " +TicketModel.isTicketEnRetard(), Snackbar.LENGTH_LONG)
                        .setAction("No action", null).show();
                break;
        }
    }

    private int lastPosition = -1;

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // Get the data item for this position
        TicketModel TicketModel = getItem(position);
        // Check if an existing view is being reused, otherwise inflate the view
        final ViewHolder viewHolder; // view lookup cache stored in tag

        final View result;

        if (convertView == null) {

            viewHolder = new ViewHolder();
            LayoutInflater inflater = LayoutInflater.from(getContext());
            convertView = inflater.inflate(R.layout.row_item_ticket, parent, false);
            viewHolder.txtName = (TextView) convertView.findViewById(R.id.titreTV);
            viewHolder.txtDate = (TextView) convertView.findViewById(R.id.dateTV);
            viewHolder.txtSLA = (TextView) convertView.findViewById(R.id.slaTV);
            viewHolder.txtTempsRestant = (TextView) convertView.findViewById(R.id.SLARestantTV);
            viewHolder.info = (ImageView) convertView.findViewById(R.id.item_info);
            viewHolder.layout = (RelativeLayout) convertView.findViewById(R.id.backgroundRow);

            result=convertView;

            convertView.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) convertView.getTag();
            result=convertView;
        }

        Animation animation = AnimationUtils.loadAnimation(mContext, (position > lastPosition) ? R.anim.up_from_bottom : R.anim.down_from_top);
        result.startAnimation(animation);
        lastPosition = position;


        viewHolder.txtName.setText(TicketModel.getTitreTicket());
        viewHolder.txtDate.setText(TicketModel.getDateTicket());
        viewHolder.txtSLA.setText(TicketModel.getSlaTicket());
        //viewHolder.txtTempsRestant.setText(TicketModel.getTempsRestantTicket());
        viewHolder.info.setImageResource(getIconUrgence(TicketModel.getUrgenceTicket()));
        viewHolder.layout.setBackgroundColor(getColorBG(TicketModel.isTicketEnRetard()));
        viewHolder.info.setOnClickListener(this);
        viewHolder.info.setTag(position);
        // Return the completed view to render on screen
        return convertView;
    }



    private int getColorBG(boolean ticketEnRetard) {
        int color;

        if (ticketEnRetard){
            color = Color.parseColor("#3caa0000");
        }
        else{
            color = Color.parseColor("#ffffff");
        }
        return color;
    }



    private int getIconUrgence(String urgenceTicket) {
        int icon;

        if((urgenceTicket.equals("Très basse"))||(urgenceTicket.equals("Basse"))){
            icon = R.drawable.basse;
        }
        else if((urgenceTicket.equals("Haute"))||(urgenceTicket.equals("Très haute"))){
            icon = R.drawable.haute;
        }
        else {
            icon = R.drawable.moyenne;
        }

        return icon;
    }


}

在这种情况下，txtTempsRestant是应该更新的TextView以显示计时器，而getTempsRestantTicket()是应该返回剩余时间的函数。

这是创建CountDownTimer和更新我的TextView（使用Handler）的常用方法：

public class TimerApp extends AppCompatActivity {

    Button start;
    TextView timeRemaining;
    CountDownTimer countDownTimer;
    long timeLeftMS = 60000; //1 min
    Runnable timeRun;

    Handler handlerTic = new Handler(){
        @Override
        public void handleMessage(Message msg) {
            timeRemaining = (TextView)findViewById(R.id.timeRemainingTV);

            int minute = (int)timeLeftMS / 60000;
            int seconde = (int)timeLeftMS % 60000 / 1000;

            String timeLeftText;

            timeLeftText = "" + minute;
            timeLeftText += ":";
            if (seconde<10) timeLeftText += "0";
            timeLeftText += seconde;

            timeRemaining.setText(timeLeftText);

        }
    };


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        start = (Button)findViewById(R.id.timeButton);


        start.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                countDownTimer = new CountDownTimer(timeLeftMS, 1000) {
                    @Override
                    public void onTick(long l) {
                        timeLeftMS = l;
                        handlerTic.sendEmptyMessage(0);
                    }

                    @Override
                    public void onFinish() {
                        //done
                    }
                }.start();
            }
        });

    }
}

我想保持这种工作方式，但是将其应用于我的适配器。