I have used ListView to create my order cards. In which I had run a continuous timer for each card using handler to check how much time has been spent. I have used code in adapter. But my problem is when there is more then one order then the timer time overlaps on each card. For example, if I have 3 cards then ist card will show time of 1,2,3 one by one at interval of one second and 2nd will show time of 2 n 3 and for 3rd timer is stop. Another problem is timer stops after a particular amount if time. Help me regarding this.
This is my piece of code of custom adapter:
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View vv = LayoutInflater.from(mContext).inflate(R.layout.adapter_listview_newpage_card,null,false);
menuModels = new ArrayList<>();
// menuModels.clear();
order_time = (TextView) vv.findViewById(R.id.order_time);
// This is my handler of timer:
final Handler myHandler = new Handler(); //declare this line in class
myHandler.postDelayed( // called this line from createlaytout function first time
new Runnable() {
public void run() {
TimeZone tz = TimeZone.getTimeZone("Asia/Kolkata");
// Log.e("TAG", "timezone "+tz );
Calendar cd = Calendar.getInstance(tz);
int min0 = cd.get(Calendar.MINUTE);
int sec0 = cd.get(Calendar.SECOND);
int hour0 = cd.get(Calendar.HOUR_OF_DAY);
// int ampm0 = cd.get(Calendar.AM_PM);
int total = (hour0 * 60 * 60) + (min0 * 60) + sec0;
int finalTime = total - Integer.parseInt(data.getTimer_time());
int hoursnew = 0;
int seconds = finalTime;
int minutes = seconds / 60;
seconds = seconds % 60;
if (minutes > 59) {
hoursnew = minutes / 60;
minutes = minutes % 60;
}
// Log.e("TAG", "timer" + minutes + "-" + seconds + "$$" + data.getOrder_id());
order_time.setText(" " + data.getOrder_id() + "&" + String.format("%02d", hoursnew) + ":" + String.format("%02d", minutes) + ":" + String.format("%02d", seconds));
myHandler.postDelayed(this, 1000);
}
}, 0);
// Here order_time is textview where I add time.
}
Updated code
Hi, I was able to run timer in my code but the problem is that now i am having null pointer exception at adapter.setnotifydata change. My code for adapter where I set time on textview
public class customadapetr_new extends BaseAdapter {
public customadapetr_new(ArrayList<DataModel> dataModels, Context context, NewPageActivity objNewPageActivity) {
this.dataSet=dataModels;
this.mContext=context;
this.objNewPageActivity = objNewPageActivity;
}
private void setTime(final int order_time, final TextView tv) {
TimeZone tz = TimeZone.getTimeZone("Asia/Kolkata");
// Log.e("TAG", "timezone "+tz );
Calendar cd = Calendar.getInstance(tz);
int min0 = cd.get(Calendar.MINUTE);
int sec0 = cd.get(Calendar.SECOND);
int hour0 = cd.get(Calendar.HOUR_OF_DAY);
// int ampm0 = cd.get(Calendar.AM_PM);
int total = (hour0 * 60 * 60) + (min0 * 60) + sec0;
int finalTime = total - order_time;
int hoursnew = 0;
int seconds = finalTime;
int minutes = seconds / 60;
seconds = seconds % 60;
if (minutes > 59) {
hoursnew = minutes / 60;
minutes = minutes % 60;
}
tv.setText(" " + String.format("%02d", hoursnew) + ":" + String.format("%02d", minutes));
}
}
And my code from where I have called handler
public class NewPageActivity extends Fragment{
private final Runnable timerRunnable = new Runnable() {
@Override
public void run() {
Log.e("TAG", "run:timer run run " );
adapter.notifyDataSetChanged();
timerHandler.postDelayed(this, 60000); //run every minute
}
};
}
I am getting error at adapter.notifyDataSetChanged() and attaching scrrenshot link of error i.e http://prntscr.com/dmxjr9
