you can go to Capabilities and turn on background mode and active Audio. AirPlay, and picture and picture. It really works . you don’t need to set DispatchQueue . you can use of Timer. Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { (t) in print(“time”) }
Calendar today = Calendar.getInstance(); today.set(Calendar.HOUR_OF_DAY, 2); today.set(Calendar.MINUTE, 0); today.set(Calendar.SECOND, 0); // every night at 2am you run your task Timer timer = new Timer(); timer.schedule(new YourTask(), today.getTime(), TimeUnit.MILLISECONDS.convert(1, TimeUnit.DAYS)); // period: 1 day
The difference is best explained by this non-Android documentation: Fixed-rate timers (scheduleAtFixedRate()) are based on the starting time (so each iteration will execute at startTime + iterationNumber * delayTime). In fixed-rate execution, each execution is scheduled relative to the scheduled execution time of the initial execution. If an execution is delayed for any reason (such … Read more
Generally speaking you should always dispose of disposable resources. I certainly would be looking to in the case you outline above. If you implement IDisposable on the class that implements the timer you can then use the class in a using statement, meaning resources will be explicitly released when your class is disposed.
Since you also want to show the countdown, I would recommend a CountDownTimer. This has methods to take action at each “tick” which can be an interval you set in the constructor. And it’s methods run on the UI Thread so you can easily update a TextView, etc… In it’s onFinish() method you can call … Read more
There are some problem to fix here: → fadeTimer.Interval = 10;: You’re (possibly) using the wrong Timer: the System.Timers.Timer’s Elapsed is raised in a ThreadPool Thread. Unless you have set the SynchronizingObject to a Control object, which is then used to marshal the handler calls, referencing a Control in the handler will cause trouble (cross-thread … Read more
Is there a specifc reason why you have the Timer control in the UpdatePanel? Every time I have needed to use a Timer control to cause an UpdatePanel refresh, I have set it up like the following and it works fine with MasterPages: <asp:UpdatePanel ID=”UpdatePanel1″ runat=”server” UpdateMode=”Conditional”> <Triggers> <asp:AsyncPostBackTrigger ControlID=”Timer1″ EventName=”Tick” /> </Triggers> <ContentTemplate> <!– … Read more
To have millisecond precision you have to use system calls specific to your OS. In Linux you can use #include <sys/time.h> timeval tv; gettimeofday(&tv, 0); // then convert struct tv to your needed ms precision timeval has microsecond precision. In Windows you can use: #include <Windows.h> SYSTEMTIME st; GetSystemTime(&st); // then convert st to your … Read more
Using a CountDownTimer as in one of the other answers is one way to do it. Another would be to use a Handler and the postDelayed method: private boolean started = false; private Handler handler = new Handler(); private Runnable runnable = new Runnable() { @Override public void run() { final Random random = new … Read more
No, the timer events are raised on the UI thread. You won’t have any synchronicity problems. This is the correct version of the timer control to use in a WinForms application; it’s specifically designed to do what you’re asking. It’s implemented under the hood using a standard Windows timer. The documentation confirms this in the … Read more