countdown

问题 I am trying to use android.os.CountDownTimer to literally show a countdown timer via a textview for fitness purposes. The issue I am having is the timer seems to be having trouble running on the main thread i.e. the countdown will jump 2-4 secs and is clearly being "lagged" - the timer is intended to be in an endless loop until a stop button is pressed. I am new to Java and Android and cannot figure out how to get the countdown timer running and updating the UI without any conflicts or

问题 I have foreach functions that print students names $names = array("Alex","Brad","Tom"); foreach($names as $name) { echo "$name <br />"; sleep(3); } How can i print each name, each 3 seconds? After "echo $name" i need some timer to stop the loop and wait for 3 seconds. sleep() functions doesn't work here. What else i can do? 回答1: You can not do this server side (reliably). This is because there is just too much possibility of your traffic being held or buffered on the way: by the webserver, by

问题 How can I simply transform this loop to count up from 1 to 100, and display the numbers? I'm starting to code recently. It works fine when counting down, but I can't figure out how to make it go from 1 -100 example: count = 100 while count > 0 : print(count) count = count - 1 回答1: Start at 1, and change your conditional to break out when you reach 100. Add 1 each loop through. count = 1 while count <= 100: print(count) count += 1 回答2: If you use a for loop it gets really easy: for number in

问题 I'd like to stop my Countdown but it does not stops and still running I have this : import { Subscription } from 'rxjs/Subscription'; sub: Subscription; countDown; count; this.count = 100; this.countDown = Observable.timer(0, 1000) .take(this.count) .map(() => this.count = this.count-10); this.sub = Observable.interval(1000) .subscribe((val) => { if(this.count===0){ this.sub.unsubscribe(); } }); and when the timer equals to 0 it goes to -10, etc... Is there another way to stop that timer? 回答1

问题 I'm trying to make a countdown without resetting the time on refresh. I need to countdown 1h only but I don't want it to reset on refresh. Getting the current time from server and expiration time is not working since I want to reset that timer on a click. Here is my current js code: <script> var clock; clock = $('.clock').FlipClock({ clockFace: 'HourlyCounter', autoStart: false, callbacks: { stop: function() { $('.message').html('The clock has stopped!') }, } }); clock.setTime(3600); clock

问题 I'll have more than one of these small boxes on my site, and each will start counting down at different times. How can I decrease the numerical value of the timer per second, giving the simulation of a countdown timer? <p class="countdown">15</p> Using this javascript it correctly countsdown, but every single auctionbox is affected. How would you suggest I isolate the timer to act on only one item? <script> var sec = 15 var timer = setInterval(function() { $('.auctiondiv .countdown').text(sec

问题 I was trying to achieve count up timer with this jquery plugin. As I am newbie on this, I really don't understand their documentation. What I want to display is. I want to display counter which counts from 1st January 2005 till current date. Example of output display is 5 years 5months 5hours 5seconds (seconds will be keep counting) Please kindly help me by posting snippets to achieve. Thanks for your time and greatly appreciated. 回答1: try: var sinceYear = new Date('01/01/2005'); $('

问题 I've created a game; in which one of the main components is a countdown timer- however this timer is delayed and I am not able to deduce why. This is how I have the timer set up: loops = 0 minute = 1 tens = 0 ones = 0 #Timer Calculation screen.blit(cloudSky, (0,0)) if go == True: loops = loops + 1 if (loops % 60)== 0: if ones == 0 and tens == 0 and minute != 0: tens = 6 ones = 0 minute = minute - 1 if ones == 0 and tens != 0: ones = 9 tens = tens - 1 elif ones != 0: ones = ones - 1 elif tens

问题 I am creating an online exam page for my project. I have a countdown timer, but it resets on page refresh. How can I make it not to reset? The timer is set by fetching time from db. I am using php mysql. Please help me. Here is my code. <?php $result=mysql_query("select * from test where testid='29'"); while($time=mysql_fetch_array($result)){ $dateFormat = "d F Y -- g:i a"; $targetDate = time() + ($time['duration']*60); $actualDate = time(); $secondsDiff = $targetDate - $actualDate;

问题 Sorry I don't have any code yet, but would appreciate some advice! I have a countdown timer showing seconds with one decimal point in a UILabel (10.0, 9.9, 9.8, etc.). It works fine, but the decimal point moves around slightly depending on the size decimal value. Is there a way to align the text in the UILabel to the decimal point or should I create two labels (one for the seconds value aligned right and one for the decimal value aligned left)? Thanks! 回答1: I think your suggestion of multiple