countdowntimer

I am willing to do a countdown timer in Angular 2 that start from 60 (i.e 59, 58,57, etc...) For that I have the following: constructor(){ Observable.timer(0,1000).subscribe(timer=>{ this.counter = timer; }); } The above, ticks every second, which is fine; however, it goes in an ascending order to an unlimited number. I am not sure if there is a way to tweak it so I can have a countdown timer. There are many ways to achieve this, a basic example is to use the take operator import { Observable, timer } from 'rxjs'; import { take, map } from 'rxjs/operators'; @Component({ selector: 'my-app',

Can someone please help me understand why progressBar.setVisibility() works when using a CountDownTimer but not when doing async download? In fact, the first Toast on async download does not even show even though the second one onPostExecute() does. Below is a working, or rather NOT working, demo. Thanks a lot. My MainActivity : public class MainActivity extends AppCompatActivity { ProgressBar progressBar; int[] items = { 12982418, 12998698, 12993549, 12995125, 12987537, 12993021, 12991986, 13008408, 12983417, 12986060, 12998395, 12985644, 13014731, 12986433, 12985074, 12994455, 12994262,

I'm trying to create a time-based count down clock. It is not based upon current_dates. The initial time that will be pulled will be from a separate php file. This will be for a browser based-game. When someone clicks the button to initiate this script. it will check if certain requirements are met and if so then this script will initiate. Based upon the level of the object it will pull the initial timer for that proceeding level. Hope that makes sense. Anyhow I based the timer script off of the first code I provide. This script only accounts for minutes and seconds. I modified it to include

I have developed a Count Down Timer and I am not sure how to pause and resume the timer as the textview for the timer is being clicked. Click to start then click again to pause and to resume, click again the timer's text view. This is my code: Timer = (TextView) this.findViewById(R.id.time); //TIMER Timer.setOnClickListener(TimerClickListener); counter = new MyCount(600000, 1000); }//end of create private OnClickListener TimerClickListener = new OnClickListener() { public void onClick(View v) { updateTimeTask(); } private void updateTimeTask() { if (decision == 0) { counter.start(); decision =

I spent my summer learning how to code and building my first app (in android studio). Therefore I am not an expert coder. This week I encountered a problem. Basically, I am developing a quiz app and when the user gets the answer wrong he have to wait 5 min. The thing is that when the countdowntimer starts and the user closes the app (by closing the app I mean destroy it and not just push the home button) the countdowntimer stops. I am wondering how I can manage to keep the timer running even if the app is closed. Your help will be greatly appreciated and it would be fantastic if you guys give

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