I want to show how much time is left inside each cell of my RecyclerView
...for that I have used a countdown timer for each. In each row I start a counter and manage onTick()
...all works as expected...I've got a timer tick for each row and my cell is also updating but my cell is flickering now....and it goes crazy when I scroll.
Here is my adapter...
if (product.getProductType().equalsIgnoreCase("Auction Product")) {
isAuction=true;
viewHolder.img_product_type.setImageResource(R.drawable.bid);
viewHolder.txt_timeleft.setVisibility(View.VISIBLE);
start_countDown(product.getStart(),product.getStop(),viewHolder.txt_timeleft);
}
counter code is as below....
private void start_countDown(String start, String stop, final TextView txt_timeleft) {
try {
//Log.e("hetal",start+"....."+stop);
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Calendar start_date = Calendar.getInstance();
start_date.setTime(format.parse(start));
Calendar end_date = Calendar.getInstance();
end_date.setTime(format.parse(stop));
final Calendar today = Calendar.getInstance();
CountDownTimer timer;
txt_timeleft.setTextColor(Color.DKGRAY);
if(today.before(start_date)){
txt_timeleft.setTextColor(context.getResources().getColor(R.color.red));
txt_timeleft.setText(context.getString(R.string.auction_not_start));
Animation anim = new AlphaAnimation(0.0f, 1.0f);
anim.setDuration(1000); //You can manage the time of the blink with this parameter
anim.setStartOffset(20);
anim.setRepeatMode(Animation.REVERSE);
anim.setRepeatCount(Animation.INFINITE);
txt_timeleft.startAnimation(anim);
return;
}
if (!today.before(end_date)) {
txt_timeleft.setTextColor(context.getResources().getColor(R.color.red));
txt_timeleft.setText(context.getString(R.string.time_out));
Animation anim = new AlphaAnimation(0.0f, 1.0f);
anim.setDuration(1000); //You can manage the time of the blink with this parameter
anim.setStartOffset(20);
anim.setRepeatMode(Animation.REVERSE);
anim.setRepeatCount(Animation.INFINITE);
txt_timeleft.startAnimation(anim);
return;
}
timer = new CountDownTimer(end_date.getTimeInMillis(), 1000) {
@Override
public void onTick(long millisUntilFinished) {
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(millisUntilFinished);
long diff = calendar.getTimeInMillis() - today.getTimeInMillis();
long seconds = diff / 1000 % 60;
long minutes = diff / (60 * 1000) % 60;
long hours = diff / (60 * 60 * 1000) % 24;
//long days = (int) diff / (24 * 60 * 60 * 1000);
long days = TimeUnit.MILLISECONDS.toDays(diff);
String left = "";
if (days > 0)
left += days + " " + context.getString(R.string.txt_day) + " ,";
if (hours > 0)
left += hours + " " + context.getString(R.string.txt_hour) + " ,";
if (minutes > 0)
left += minutes + " " + context.getString(R.string.txt_minute) + " ,";
left += seconds + " " + context.getString(R.string.txt_second);
final String finalLeft = left;
if (finalLeft.equals("0") || finalLeft.contains("-")) {
txt_timeleft.setText(context.getString(R.string.time_out));
txt_timeleft.setTextColor(context.getResources().getColor(R.color.red));
Animation anim = new AlphaAnimation(0.0f, 1.0f);
anim.setDuration(1000); //You can manage the time of the blink with this parameter
anim.setStartOffset(20);
anim.setRepeatMode(Animation.REVERSE);
anim.setRepeatCount(Animation.INFINITE);
txt_timeleft.startAnimation(anim);
} else
txt_timeleft.setText(finalLeft);
}
@Override
public void onFinish() {
}
};
timer.start();
}catch (Exception ex){
ex.printStackTrace();
}
}
You need to add count down timer in your onCreateViewHolder method of RecyclerView because onCreateViewHolder will be called only once.
onBindViewHolder will be called every time user scroll up or down
please check below code.
}
thanx Hammad Tariq Sahi i have used your logic and solve my problem in this way....i have also refereed this link
in my adapter
inside constructor of my adapter
and added this method to calculate time
added two methods to my viewholder class
and finally inside onBindViewHolder
works perfect....thanx all