7
Nella mia app, devo mostrare il conto alla rovescia per ogni oggetto in listview. Sono stato in grado di farlo usando CountDownTimer. Ma il problema è quando si scorre la vista elenco su o giù, il timer inizia a lampeggiare. Ho cercato molto ma non ho trovato una soluzione.ListView con timer a tempo reale. Timer sfarfallio durante lo scorrimento della listview
La mia classe adattatore
public class BuyListingListAdapter extends BaseAdapter {
private Context mContext;
private ArrayList<VehicleAttributes> mVehicleList = new ArrayList<VehicleAttributes>();
private Date currentDate;
//Saving position in map to check if timer has been //started for this row
private HashMap<Integer, Boolean> timerMap = new HashMap<Integer, Boolean>();
public BuyListingListAdapter(Context context,
ArrayList<VehicleAttributes> vehicleList, boolean showGridView) {
this.mContext = context;
this.mVehicleList = vehicleList;
this.showGridView = showGridView;
currentDate = new Date(System.currentTimeMillis());
int listSize = mVehicleList.size();
for (int i = 0; i < listSize; i++)
timerMap.put(i, false);
}
@Override
public int getCount() {
return mVehicleList.size();
}
@Override
public Object getItem(int position) {
return mVehicleList.get(position);
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
final ViewHolder holder;
if (convertView == null) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
convertView = inflater.inflate(R.layout.row_buy_listing_grid,
parent, false);
holder = new ViewHolder();
holder.timer_layout = (LinearLayout) convertView
.findViewById(R.id.timer_layout);
holder.txt_remaining_days = (RobotoCondensedBoldTextView) convertView
.findViewById(R.id.txt_remaining_days);
holder.txt_remaining_hours = (RobotoCondensedBoldTextView) convertView
.findViewById(R.id.txt_remaining_hours);
holder.txt_remaining_mins = (RobotoCondensedBoldTextView) convertView
.findViewById(R.id.txt_remaining_mins);
holder.txt_remaining_secs = (RobotoCondensedBoldTextView) convertView
.findViewById(R.id.txt_remaining_secs);
holder.listing_status = (ImageView) convertView
.findViewById(R.id.listing_status);
convertView.setTag(holder);
} else
holder = (ViewHolder) convertView.getTag();
final VehicleAttributes vehicleAttributes = mVehicleList.get(position);
AuctionModel mAuctionModel = vehicleAttributes.getAuctionDetailModel();
if (mAuctionModel != null) {
holder.img_auction.setVisibility(View.VISIBLE);
Date auctionStartDate = Util
.getDateFromString(mAuctionModel.getStarted_at(),
"yyyy-MM-dd hh:mm:ss", "GMT");
Date auctionEndDate = Util.getDateFromString(
mAuctionModel.getEnded_at(), "yyyy-MM-dd hh:mm:ss", "GMT");
long diff = currentDate.getTime() - auctionEndDate.getTime();
if (diff < 0)
diff = -diff;
else
diff = 0;
if (timerMap.get(position) == null || !timerMap.get(position)) {
timerMap.put(position, true);
MyCountDown countDown = new MyCountDown(position, diff, 1000,
holder.txt_remaining_days, holder.txt_remaining_hours,
holder.txt_remaining_mins, holder.txt_remaining_secs);
countDown.start();
}
}
return convertView;
}
private class MyCountDown extends CountDownTimer {
RobotoCondensedBoldTextView txt_remaining_days;
RobotoCondensedBoldTextView txt_remaining_hours;
RobotoCondensedBoldTextView txt_remaining_mins;
RobotoCondensedBoldTextView txt_remaining_secs;
int position;
public MyCountDown(int position, long millisInFuture, long countDownInterval,
RobotoCondensedBoldTextView txt_remaining_days,
RobotoCondensedBoldTextView txt_remaining_hours,
RobotoCondensedBoldTextView txt_remaining_mins,
RobotoCondensedBoldTextView txt_remaining_secs) {
super(millisInFuture, countDownInterval);
this.position = position;
this.txt_remaining_days = txt_remaining_days;
this.txt_remaining_hours = txt_remaining_hours;
this.txt_remaining_mins = txt_remaining_mins;
this.txt_remaining_secs = txt_remaining_secs;
}
@Override
public void onFinish() {
}
@Override
public void onTick(long millisUntilFinished) {
updateTimerLabel(position, millisUntilFinished, txt_remaining_days,
txt_remaining_hours, txt_remaining_mins, txt_remaining_secs);
}
}
private void updateTimerLabel(int position, long millis,
RobotoCondensedBoldTextView txt_remaining_days,
RobotoCondensedBoldTextView txt_remaining_hours,
RobotoCondensedBoldTextView txt_remaining_mins,
RobotoCondensedBoldTextView txt_remaining_secs) {
String days = String.format("%02d",
TimeUnit.MILLISECONDS.toDays(millis));
String hours = String.format(
"%02d",
TimeUnit.MILLISECONDS.toHours(millis)
- TimeUnit.DAYS.toHours(TimeUnit.MILLISECONDS
.toDays(millis)));
String mins = String.format(
"%02d",
TimeUnit.MILLISECONDS.toMinutes(millis)
- TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS
.toHours(millis)));
String secs = String.format(
"%02d",
TimeUnit.MILLISECONDS.toSeconds(millis)
- TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS
.toMinutes(millis)));
txt_remaining_days.setText(days);
txt_remaining_hours.setText(hours);
txt_remaining_mins.setText(mins);
txt_remaining_secs.setText(secs);
}
static class ViewHolder {
NetworkImageView mVehicleImage;
RobotoCondensedBoldTextView txt_remaining_days, txt_remaining_hours,
txt_remaining_mins, txt_remaining_secs;
LinearLayout timer_layout;
}
}
Un problema si perde la parte else di questo if (mAuctionModel! = Null) { – Amsheer
@Amsheer Ho adattato il mio codice e mostrato solo ciò che è rilevante. Inoltre, il timer sarà visibile solo se questo modello è presente – Nitish
lo hai testato su più dispositivi/versioni di Android? – bernlim