timer

问题 I'm creating an interval timer with wheel animation. The timer is supposed to work this way: If somebody only types the seconds in the work - the seconds count down, infinite times. If someone types the seconds in work and break, the seconds count down infinitely. If you enter all the fields, the timer will work the same way as at the top. I have a few questions. Why does this timer not work properly when the phone screen is locked, sometimes the seconds count down badly, or count down to

问题 I have Angstrom Linux on my BeagleBoard. I want to implement very accurate timer which can fire at every 500us. I read about hrtimers , but all the implementations I found were for kernel space. I want to implement it in user space. Is there any API which which can call into these hrtimers , which I can use in userspace or any other way of implementing accurate timer in linux? I have set the jiffy to a few nanoseconds. 回答1: Finally, after some more efforts I found a code which suggested to

问题 I saw a Javascript milliseconds timer demo HERE However, I found it very inaccurate because it uses setInterval to increase one ms per time. Does anyone have ideas about how to implement an accurate milliseconds timer in JS easily? Does it has to be done using Date object? 回答1: An accurate timer uses setTimeout() or setInterval() to regularly update a display, but NEVER to count the actual time. Because of Javascript's single threaded nature, a timer event may not occur exactly at the right

问题 I saw a Javascript milliseconds timer demo HERE However, I found it very inaccurate because it uses setInterval to increase one ms per time. Does anyone have ideas about how to implement an accurate milliseconds timer in JS easily? Does it has to be done using Date object? 回答1: An accurate timer uses setTimeout() or setInterval() to regularly update a display, but NEVER to count the actual time. Because of Javascript's single threaded nature, a timer event may not occur exactly at the right

问题 guys I have a trouble I need your help please, here is the big deal how can I make a timer using observable, and how could pause it when I make a request to my backend. 来源： https://stackoverflow.com/questions/61240012/how-can-i-make-a-timer-using-an-observable-in-angular-9

问题 I have a textbox on my windows form that I am wanting to show the elapsed time that my procedure has taken, but I am not seeing any time counting in the textbox. Below is my code public partial class Form1 : System.Windows.Forms.Form { private Stopwatch watch = new Stopwatch()l private void btn_RashadSL() { watch.Start(); //lots of code here that typically takes around 15 - 20 minutes to complete } private void timer_Tick(object sender, EventArgs e) { textbox1.Text = watch.Elapsed.Seconds

问题 Closed. This question needs debugging details. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 days ago . I am working on a gui transformations project and i am making use of the java swing timer. The prob is that I have multiple if statements in the actionPerformed method of a jbutton. When I execute the first if statement I update a value. But when it comes to the 2nd if statement, it does not enter it.

问题 I'm using multiple boost::asio::deadline_timer on one io_service object. std::shared_ptr of boost::asio::deadline_timer are stored in the container std::map<int, std::shared_ptr<debug_tim>> timers with index. In the timer handler, I erase other boost::asio::deadline_timer . However, it seems that the erased timer woule be often fired with success error code. Is there any way to avoid that. I expect that the timer handler that corresponding to the erased boost::asio::deadline_timer always

问题 I need a timer that fires every 25ms. I've been comparing the default Timer implementation between Windows 10 and Linux (Ubuntu Server 16.10 and 12.04) on both the dotnet core runtime and the latest mono-runtime. There are some differences in the timer precision that I don't quite understand. I'm using the following piece of code to test the Timer: // inside Main() var s = new Stopwatch(); var offsets = new List<long>(); const int interval = 25; using (var t = new Timer((obj) => { offsets.Add

问题 I need a timer that fires every 25ms. I've been comparing the default Timer implementation between Windows 10 and Linux (Ubuntu Server 16.10 and 12.04) on both the dotnet core runtime and the latest mono-runtime. There are some differences in the timer precision that I don't quite understand. I'm using the following piece of code to test the Timer: // inside Main() var s = new Stopwatch(); var offsets = new List<long>(); const int interval = 25; using (var t = new Timer((obj) => { offsets.Add