C# -> Android (Xamarin) -> start task every 5 minutes in Background

Question

i want to run a task every 5 minutes. i've tried to solve it with an IntentService and AlarmManager, my code: protected override void OnCreate(Bundle bundle) { base.OnCreate(bundle); SetContentView(Resource.Layout.Main); var tkrServiceIntent = new Intent(this, typeof(GpsDataHandler)); var tkrServicePendingIntent = PendingIntent.GetService(this, 0, tkrServiceIntent, 0); long interval = 5000; var firstStart = (DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond) + 1000; var am = (AlarmManager)GetSystemService(Context.AlarmService); am.SetInexactRepeating(AlarmType.RtcWakeup, firstStart, interval, tkrServicePendingIntent); Toast.MakeText(this, "Service started", ToastLength.Long).Show(); } i receive the toast, that the service is started, but if i look in running services, there is no service for my application. Can you tell me where the problem ist? JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

IntentService in an "activity" (if we can call it) runing in Background of the app, so finnally it will call the OnDestroy() .. You can use the timer to fix your problem , like : using System; using System.Threading; class TimerExampleState { public int counter = 0; public Timer tmr; } class App { public static void Main() { TimerExampleState s = new TimerExampleState(); // Create the delegate that invokes methods for the timer. TimerCallback timerDelegate = new TimerCallback(CheckStatus); // Create a timer that waits one second, then invokes every second. Timer timer = new Timer(timerDelegate, s, 1000, 1000); // Keep a handle to the timer, so it can be disposed. s.tmr = timer; // The main thread does nothing until the timer is disposed. while (s.tmr != null) Thread.Sleep(0); Console.WriteLine("Timer example done."); } // The following method is called by the timer's delegate. static void CheckStatus(Object state) { TimerExampleState s = (TimerExampleState) state; s.counter++; Console.WriteLine("{0} Checking Status {1}.",DateTime.Now.TimeOfDay, s.counter); if (s.counter == 5) { // Shorten the period. Wait 10 seconds to restart the timer. (s.tmr).Change(10000,100); Console.WriteLine("changed..."); } if (s.counter == 10) { Console.WriteLine("disposing of timer..."); s.tmr.Dispose(); s.tmr = null; } } } Source : https://developer.xamarin.com/api/type/System.Threading.Timer/