Android: Multiple simultaneous count-down timers in a ListView

Question

I am creating an app that requires a ListView with an undetermined number of elements, each of which has a timer that counts down from a variable number. I am able to succes

Answer 1

Here is another solution of using ListView with multiple CountDownTimer. Firstly, we create a class MyCustomTimer that holds the CountDownTimer:

public class MyCustomTimer{
    public MyCustomTimer() {
    }
    public void setTimer(TextView tv, long time) {
        new CountDownTimer(time, 1000) {
            public void onTick(long millisUntilFinished) {
                //Set formatted date to your TextView
                tv.setText(millisUntilFinished);
            }
            public void onFinish() {
                tv.setText("Done!");
            }
        }.start();
    }
}

Then, initilize the created class in your adapter:

public class MyAdapter extends BaseAdapter {
    private LayoutInflater mInflater;
    private MyCustomTimer myTimer;
    private ArrayList myItems;

    public MyAdapter(Context context, ArrayList data) {
        mInflater = LayoutInflater.from(context);
        myTimer= new MyCustomTimer();
        myItems = data;
    }

    //... implementation of other methods

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        convertView = mInflater.inflate(R.layout.listview_row, null);
        TextView tvTimer = (TextView) convertView.findViewById(R.id.textview_timer);
        TextView tvName = (TextView) convertView.findViewById(R.id.textview_name);

        Item item = data.get(position);

        tvName.setText(item.getName());
        myTimer.setTimer(tvTimer, item.getTime());

        return convertView;
    }
}