Toast notification when app in background in Windows phone 8.1 - windows

I want to send a toast notification to the action center when my app is in background. So I have set up a Timer, when I start the timer from the app, after 10 sec it produces a toast notification. Now when I try it in the debugger, the toast is produced, even if I press the home button or if I suspend the app using debugger suspend option. But when I deploy the app , it is not producing the toast when I start the timer and click home button. Can anyone suggest a solution for this..?
Adding the Code
private Timer stateTimer;
private void Button_Click(object sender, RoutedEventArgs e)
{
TimerCallback timerDelegate = new TimerCallback(timer_Tick);
TimeSpan delayTime = new TimeSpan(0, 0, 10);
AutoResetEvent autoEvent = new AutoResetEvent(false);
TimeSpan intervalTime = new TimeSpan(0, 0, 0, 0, 0);
Timer notification_timer = new Timer(timerDelegate, autoEvent, delayTime, intervalTime);
}
private void timer_Tick(object state)
{
ToastTemplateType toastTemplate = ToastTemplateType.ToastText02;
XmlDocument toastXml = ToastNotificationManager.GetTemplateContent(toastTemplate);
XmlNodeList toastTextElements = toastXml.GetElementsByTagName("text");
toastTextElements[0].AppendChild(toastXml.CreateTextNode("Download has complete"));
toastTextElements[1].AppendChild(toastXml.CreateTextNode("Download has complete"));
IXmlNode toastNode = toastXml.SelectSingleNode("/toast");
((XmlElement)toastNode).SetAttribute("duration", "long");
((XmlElement)toastNode).SetAttribute("launch", "{\"type\":\"toast\",\"param1\":\"12345\",\"param2\":\"67890\"}");
ToastNotification toast = new ToastNotification(toastXml);
ToastNotificationManager.CreateToastNotifier().Show(toast);
}

When you're debugging your app is never suspended until you explicitly choose suspension from the lifecycle events in Visual Studio. So when you press the home button your app actually continues running.
This is not the case when running the app without an attached debugger on an actual device. Once you hit the home button your app gets suspended and won't run until it's resumed.
You would have to use a background task to execute code in background.

Related

How to bring Xamrin MAC app to foreground programmatically?

How to bring Xamarin MAC app to foreground programmatically, by clicking on the local notification? How can I achieve it? I have written below code for the local notification. On clicking on that local notification I want to foreground my app.
NSUserNotificationCenter center = NSUserNotificationCenter.DefaultUserNotificationCenter;
NSUserNotification notification = new NSUserNotification();
notification.Title = title;
notification.Subtitle = content;
notification.InformativeText = "TEST";
notification.SoundName = NSUserNotification.NSUserNotificationDefaultSoundName;
notification.DeliveryDate = NSDate.FromTimeIntervalSinceNow(1);
center.ScheduleNotification(notification);
center.DidDeliverNotification += (s, e) =>
{
Console.WriteLine("Notification Delivered");
};
center.DidActivateNotification += (s, e) =>
{
Console.WriteLine("Notification Touched");
};
Thank you in advance,
Vivek
You can use NSWorkspace.SharedWorkspace.LaunchApp to "launch" your app, it does not matter if the app is already running or not, and you can use NSWorkspaceLaunchOptions.HideOthers to bring forward just the last active window of that app.
center.DidActivateNotification += (s, e) =>
{
Console.WriteLine("Notification Touched");
NSWorkspace.SharedWorkspace.LaunchApp(NSBundle.MainBundle.BundleIdentifier, NSWorkspaceLaunchOptions.HideOthers, new NSAppleEventDescriptor(), IntPtr.Zero);
};

Local Push notification not working in Xamarin iOS

I am using Xamarin.forms and implemented Local push notification for iOS. It is working successfully when I am debugging the app through visual studio even when the app is minimized, the app can able to receive the notification. But while running the app directly without debugging through visual studio, the app is not able to display the notification. Kindly guide me on this.
Then I also tried by releasing the app to the app store but experienced the same, the app is not able to receive the notification it not even in foreground mode.
I already have selected the "Background fetch" property under Background Modes in Info.plist.
I have also added below the line in my FinishedLaunching method
UIApplication.SharedApplication.SetMinimumBackgroundFetchInterval(UIApplication.BackgroundFetchIntervalMinimum);
Entire Implementation of code is as below
public override bool FinishedLaunching(UIApplication app, NSDictionary options)
{
try
{
UIApplication.SharedApplication.SetMinimumBackgroundFetchInterval(UIApplication.BackgroundFetchIntervalMinimum);
try
{
if (UIDevice.CurrentDevice.CheckSystemVersion(10, 0))
{
UNUserNotificationCenter.Current.RequestAuthorization(UNAuthorizationOptions.Alert |
UNAuthorizationOptions.Sound |
UNAuthorizationOptions.Sound,
(granted, error) =>
{
if (granted)
{
InvokeOnMainThread(UIApplication.SharedApplication.RegisterForRemoteNotifications);
}
});
}
else if (UIDevice.CurrentDevice.CheckSystemVersion(8, 0))
{
var pushSettings = UIUserNotificationSettings.GetSettingsForTypes(
UIUserNotificationType.Alert | UIUserNotificationType.Badge | UIUserNotificationType.Sound,
new NSSet());
UIApplication.SharedApplication.RegisterUserNotificationSettings(pushSettings);
UIApplication.SharedApplication.RegisterForRemoteNotifications();
}
else
{
UIRemoteNotificationType notificationTypes = UIRemoteNotificationType.Alert | UIRemoteNotificationType.Badge | UIRemoteNotificationType.Sound;
UIApplication.SharedApplication.RegisterForRemoteNotificationTypes(notificationTypes);
}
bool IsRegistered = UIApplication.SharedApplication.IsRegisteredForRemoteNotifications;
}
catch (Exception ex)
{
UIAlertView avAlert = new UIAlertView("FinishedLaunching Push Notification Exception", ex.Message, null, "OK", null);
avAlert.Show();
}
UNUserNotificationCenter.Current.Delegate = new UserNotificationCenterDelegate();
LoadApplication(new MessengerClient.App());
}
catch (Exception ex)
{
NativeHelper.SendUnhandledException(ex, NativeHelper.iOS + ": FinishedLaunching");
}
return base.FinishedLaunching(app, options);
}
public override void ReceivedLocalNotification(UIApplication application, UILocalNotification notification)
{
/// reset our badge
UIApplication.SharedApplication.ApplicationIconBadgeNumber = 0;
/// Cancel/clear all Local notifications fronm the tray.
UIApplication.SharedApplication.CancelLocalNotification(notification);
/// Cancel/clear all notifications fronm the tray.
UIApplication.SharedApplication.CancelAllLocalNotifications();
}
code for displaying the notification is as below.
UILocalNotification notification = new UILocalNotification();
notification.FireDate = NSDate.FromTimeIntervalSinceNow(1);
notification.AlertAction = title;
notification.AlertBody = content;
notification.AlertTitle = title;
notification.SoundName = UILocalNotification.DefaultSoundName;
notification.ApplicationIconBadgeNumber = 1;
UIApplication.SharedApplication.ScheduleLocalNotification(notification);
I know this is the repeat question but, I tried all the workaround but didn't work for me.
You can have a check with this Notifications in Xamarin.iOS .
iOS applications handle remote and local notifications in almost exactly the same fashion. When an application is running, the ReceivedLocalNotification method or the ReceivedRemoteNotification method on the AppDelegate class will be called, and the notification information will be passed as a parameter.
An application can handle a notification in different ways. For instance, the application might just display an alert to remind users about some event. Or the notification might be used to display an alert to the user that a process has finished, such as synching files to a server.
The following code shows how to handle a local notification and display an alert and reset the badge number to zero:
public override void ReceivedLocalNotification(UIApplication application, UILocalNotification notification)
{
// show an alert
UIAlertController okayAlertController = UIAlertController.Create(notification.AlertAction, notification.AlertBody, UIAlertControllerStyle.Alert);
okayAlertController.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
Window.RootViewController.PresentViewController(okayAlertController, true, null);
// reset our badge
UIApplication.SharedApplication.ApplicationIconBadgeNumber = 0;
}
In addition , there is a sample you can download to check . It works no matter in Debug or Release Model in my local site (iOS 13.3).
The effect :
Just add this code in your AppDelegate DidFinishLaunching and notification will start working in the background. BackgroundTask- showNotification may get canceled sometime, for me whenever my dashboard is loaded, I guess as it has multiple API Calls. so add it in your DidEnterBackground Delegate as well with different taskID, to start a new background task. It works fine for me.
nint taskID = yourTaskID;
taskID = application.BeginBackgroundTask("showNotification", expirationHandler: ()=> {
UIApplication.SharedApplication.EndBackgroundTask(taskID);
});

Processing notifications in Xamarin Forms Android

I'm using the library https://github.com/aritchie/notifications and I can create and schedule notifications properly.
I wish to process them in Android so that depending on the notification - it will navigate to a particular page when the user taps on it.
I've found that the below event is fired when I tap on a notification (in my Android Project)
protected override void OnNewIntent(Intent intent)
{
}
However, I can't find any info in the intent from my notification in order to build up navigation to a particular page.
Any advice would be appreciated.
Cheers!
Edit #1 (Adding additional code for a related issue):
If I fire off a notification, and close the app before the notification is received - I receive an error saying the app has crashed. If I receive the notification and close the app - I can load the app from the notification OK.
I have a dependency service which hits the following methods.
public void Remind(DateTime dateTime, string msgtype, string usermedid)
{
DateTime now = DateTime.Now;
var diffinseconds = (dateTime - now).TotalSeconds;
Intent alarmIntent = new Intent(Forms.Context, typeof(AlarmBroadcastReceiver));
alarmIntent.PutExtra("notificationtype", msgtype);
alarmIntent.PutExtra("id", id);
PendingIntent pendingIntent = PendingIntent.GetBroadcast(Forms.Context, 0, alarmIntent, PendingIntentFlags.UpdateCurrent);
AlarmManager alarmManager = (AlarmManager)Forms.Context.GetSystemService(Context.AlarmService);
//TODO: For demo set after 5 seconds.
alarmManager.Set(AlarmType.ElapsedRealtime, SystemClock.ElapsedRealtime() + diffinseconds * 1000, pendingIntent);
}
[BroadcastReceiver(Enabled = true)]
[IntentFilter(new string[]{"android.intent.action.BOOT_COMPLETED"}, Priority = (int) IntentFilterPriority.LowPriority)]
public class AlarmBroadcastReceiver : BroadcastReceiver
{
public override void OnReceive(Context context, Intent intent)
{
string notificationtype = intent.GetStringExtra("notificationtype");
PowerManager.WakeLock sWakeLock;
var pm = PowerManager.FromContext(context);
sWakeLock = pm.NewWakeLock(WakeLockFlags.Partial, "GCM Broadcast Reciever Tag");
sWakeLock.Acquire();
intent = new Intent(Forms.Context, typeof(MainActivity));
intent.PutExtra("notificationtype", notificationtype);
intent.AddFlags(ActivityFlags.IncludeStoppedPackages);
// Instantiate the builder and set notification elements, including pending intent:
NotificationCompat.Builder builder = new NotificationCompat.Builder(Forms.Context)
.SetDefaults((int)NotificationDefaults.Sound | (int)NotificationDefaults.Vibrate)
.SetAutoCancel(true)
.SetContentIntent(PendingIntent.GetActivity(Forms.Context, 0, intent, 0)).SetContentTitle("Sample Notification")
.SetContentText("Hello World! This is my first action notification!")
.SetTicker("New Notification")
.SetSmallIcon(Resource.Drawable.icon);
// Build the notification:
Android.App.Notification notification = builder.Build();
notification.Flags = NotificationFlags.AutoCancel;
// Get the notification manager:
//NotificationManager notificationManager = Forms.Context.GetSystemService(Context.NotificationService) as NotificationManager;
var manager = NotificationManagerCompat.From(context);
// Publish the notification:
const int notificationId = 0;
manager.Notify(notificationId, notification);
sWakeLock.Release();
}
}
How do I keep my Broadcast Receiver alive when the app is closed?
Ok so it took me some time to figure this one out. OnNewIntent is called when the app is in the background and the notification is clicked on. It is also called each time the app is minimized and the brought back up... so to tell the difference between the 2 events, you need to check the passed in Intent for what extra data is inside it. The extra data would have come from the Intent you made when you first initiated the notification.
Also make sure to set your MainActivity's LaunchMode to LaunchMode.SingleTop so that your app does not get restarted each time the notification is clicked on.
[Activity(LaunchMode = LaunchMode.SingleTop, ....)]
public class MainActivity : FormsApplicationActivity {
....
/// <summary>
/// Called when the app is in the background and a notification is clicked on (also called each time the app is minimized and the brought back up), a new <c>Intent</c> is created
/// and sent out, since we use <c>LaunchMode</c> set to <c>SingleTop</c> this method is called instead of the app being restarted.
/// </summary>
/// <param name="intent">The <c>Intent</c> that was set when the call was made. If started from a notification click, extra <c>string</c> values can be extracted.</param>
protected override void OnNewIntent(Intent intent) {
if(intent.HasExtra("Some special key you made up")) { //Here is where you check for special notification intent extras
//Do something brilliant now that you know a notification was clicked on
}
base.OnNewIntent(intent);
}
To see how you can add data to the Intent you can check out the Xamarin Sport App, but do not get too bogged down in all the other stuff they are doing like I always tend to do. Just focus on the PutExtra part.
Edit #1:
If your app is completely closed, you need to pull the data from the Intent passed into OnCreate and pass it into your App class or do something else with it:
protected override async void OnCreate(Android.OS.Bundle bundle) {
base.OnCreate(bundle);
Forms.Init(this, bundle);
string parameterValue = Intent.GetStringExtra("Some special key you made up"); //This would come in from the Push Notification being clicked on
Console.WriteLine("\nIn MainActivity.OnCreate() - Param Intent Extras: {0}\n", parameterValue);
//MessagingCenter.Send("nothing", ConstantKeys.NewNotification); //Do something special with the notification data
LoadApplication(parameterValue != null ? new App(parameterValue) : new App()); //Do something special with the notification data
}
Edit #2:
Some changes I would recommend to your OnReceive method based on my current code (some may not be necessary, but it is just what I am doing):
Label your Broadcast Receiver
Add stupid Xamarin constructors
Used constant property instead of string for IntentFilter
Remove IntentFilter Priority
Check for null Intent (might not be necessary)
Use Application.Context instead of Forms.Context (I use Forms.Context in other parts of my app so not sure about this one, but
can't hurt)
Do not overwrite the passed in Intent
Create startup intent instead of regular
Add IncludeStoppedPackages flag before pulling out extras
Check for boot completed event
Use Notification.Builder instead of NotificationCompat.Builder (though you might need to change this back)
Add following flags to pendingintent: PendingIntentFlags.UpdateCurrent | PendingIntentFlags.OneShot
-- Use NotificationManager (unless you have a specific reason you commented it out)
[assembly: UsesPermission(Android.Manifest.Permission.Vibrate)]
[assembly: UsesPermission(Android.Manifest.Permission.WakeLock)] //Optional, keeps the processor from sleeping when a message is received
[assembly: UsesPermission(Android.Manifest.Permission.ReceiveBootCompleted)] //Allows our app to be opened and to process notifications even when the app is closed
namespace Your.App.Namespace {
[BroadcastReceiver(Enabled = true, Label = "GCM Alarm Notifications Broadcast Receiver")]
[IntentFilter(new []{ Intent.ActionBootCompleted })]
public class AlarmBroadcastReceiver : BroadcastReceiver {
#region Constructors
// ReSharper disable UnusedMember.Global
public AlarmBroadcastReceiver() { }
public AlarmBroadcastReceiver(IntPtr handle, JniHandleOwnership transfer) : base(handle, transfer) { }
// ReSharper restore UnusedMember.Global
#endregion
public void Remind(DateTime dateTime, string msgtype, string usermedid) {
DateTime now = DateTime.Now;
var diffinseconds = (dateTime - now).TotalSeconds;
Intent alarmIntent = new Intent(Application.Context, typeof(AlarmBroadcastReceiver));
alarmIntent.PutExtra("notificationtype", msgtype);
alarmIntent.PutExtra("id", id);
PendingIntent pendingIntent = PendingIntent.GetBroadcast(Application.Context, 0, alarmIntent, PendingIntentFlags.UpdateCurrent);
AlarmManager alarmManager = (AlarmManager)Application.Context.GetSystemService(Context.AlarmService);
//TODO: For demo set after 5 seconds.
alarmManager.Set(AlarmType.ElapsedRealtime, SystemClock.ElapsedRealtime() + diffinseconds * 1000, pendingIntent);
}
public override void OnReceive(Context context, Intent intent) {
#region Null Check
if(intent == null) {
Console.WriteLine("\nIn AlarmBroadcastReceiver.OnReceive() - Intent is null\n");
return;
}
#endregion
intent.AddFlags(ActivityFlags.IncludeStoppedPackages);
string action = intent.Action;
Console.WriteLine("\nIn AlarmBroadcastReceiver.OnReceive() - Action: {0}\n", action);
#region Boot Completed Check
if(action.Equals("android.intent.action.BOOT_COMPLETED")) {
PowerManager pm = PowerManager.FromContext(context);
PowerManager.WakeLock sWakeLock = pm.NewWakeLock(WakeLockFlags.Partial, "GCM Broadcast Receiver Tag");
sWakeLock.Acquire();
Console.WriteLine("\nIn AlarmBroadcastReceiver.OnReceive() - Process Shared Preferences Notifications\n");
#region Process Saved Scheduled Notifications
//Get list of saved scheduled notifications that did not fire off before the device was turned off (I store them in SharedPreferences and delete them after they are fired off)
//Go through the list and reschedule them
#endregion
sWakeLock.Release();
return;
}
#endregion
string notificationtype = intent.GetStringExtra("notificationtype");
Intent startupIntent = Application.Context.PackageManager.GetLaunchIntentForPackage(Application.Context.PackageName);
startupIntent.PutExtra("notificationtype", notificationtype);
// Instantiate the builder and set notification elements, including pending intent:
Notification.Builder builder = new Notification.Builder(Application.Context)
.SetDefaults((int)NotificationDefaults.Sound | (int)NotificationDefaults.Vibrate)
.SetAutoCancel(true)
.SetContentIntent(PendingIntent.GetActivity(Application.Context, 0, intent, PendingIntentFlags.UpdateCurrent | PendingIntentFlags.OneShot))
.SetContentTitle("Sample Notification")
.SetContentText("Hello World! This is my first action notification!")
.SetTicker("New Notification")
.SetSmallIcon(Resource.Drawable.icon);
// Build the notification:
Android.App.Notification notification = builder.Build();
// Get the notification manager:
NotificationManager notificationManager = Application.Context.GetSystemService(Context.NotificationService) as NotificationManager;
// Publish the notification:
int notificationId = ??;//This should be a real unique number, otherwise it can cause problems if there are ever multiple scheduled notifications
notificationManager.Notify(notificationId, notification);
}
}
}

Toast Notification From Background Task

I work on universal app that one of it's features is to send a notification to the user after a specific time he/she want . Notification appear when Set The System Event (i.e disable and enable wifi) as Follow
builder.SetTrigger(new SystemTrigger(SystemTriggerType.NetworkStateChange, false));
but when work with TimeTrigger The Notification Doesn't appear !
Here is my code :
var builder = new BackgroundTaskBuilder();
builder.Name = "MyBackgroundTask";
builder.TaskEntryPoint = "SampleWindowsStoreApp.BackgroundTask.MyBackgroundTask";
var _taskbuilder = new TimeTrigger(20, false);
builder.SetTrigger(_taskbuilder);
builder.Register();
knowing that I enable Toast From Package.appxmanifest and declare Timer and backgroundTask
It's my BackgroundTask code
public sealed class MyBackgroundTask : IBackgroundTask
{
public void Run(IBackgroundTaskInstance taskInstance)
{
var deferral = taskInstance.GetDeferral();
ToastNotificationUtilities.ShowMessage("Hello from the background task. ");
deferral.Complete();
}
}
I want to know why the notification that should appear after 20 min doesn't appear .!
Maybe you must use something like that
ToastTemplateType toastTemplate = ToastTemplateType.ToastText02;
XmlDocument toastXml = ToastNotificationManager.GetTemplateContent(toastTemplate); XmlNodeList toastTextElements = toastXml.GetElementsByTagName("text");
toastTextElements[0].AppendChild(toastXml.CreateTextNode("Hello from the background task. ")); ToastNotification toast = new ToastNotification(toastXml); ToastNotificationManager.CreateToastNotifier().Show(toast);
instand of: ToastNotificationUtilities.ShowMessage("Hello from the background task. ")

Geofence in the Background Windows Phone 8.1 (WinRT)

Issue
I'm trying to trigger a BackgroundTask when a Geofence Event (Enter / Exit) occurs in WP8.1 (WinRT). I've written a sample application to try to get it working, but can't seem to be able to do so.
So far, these are the steps I've taken to try to get Geofences working in the background:
Check for Location Capabilities
Create + Register a Geofence
Create + Register a BackgroundTask that listens for LocationTrigger(LocationTriggerType.Geofence);
In my background task, trigger a simple popup notification
Things I have done to Troubleshoot
I have enabled in my app.manifest:
Toast Capable => Yes
Capabilities: Location, Internet(Client &
Server)
Declarations: BackgroundTasks (Location). EntryPoint = BackgroundTask.GeofenceBackgroundTask
My background task is located in a separate project, titled BackgroundTask. It is a WindowsRT Component and contains one class GeofenceBackgroundTask.
Sample Project
The code for the project can be found at this [link](https://github.com/kiangtengl/GeofenceSample):
How To Test
Run the code in the emulator
Set Location to to: Latitude = 01.3369, Longitude = 103.7364
Click the Register Geofence + BackgroundTasks button
Exit the app (press the home button)
Change the current location to anywhere 100m away from the location you set previously. A notification should pop out.
Project Code:
Check for Location Capabilities
public static async Task GetLocationCapabilities()
{
try
{
var geolocator = new Geolocator();
await geolocator.GetGeopositionAsync();
var backgroundAccessStatus = await BackgroundExecutionManager.RequestAccessAsync();
Debug.WriteLine("background access status" + backgroundAccessStatus);
}
catch (UnauthorizedAccessException e)
{
Debug.WriteLine(e);
}
catch (TaskCanceledException e)
{
Debug.WriteLine(e);
}
}
Create Geofence
public static void CreateGeofence(BasicGeoposition position, double radius, string id = "default")
{
// The Geofence is a circular area centered at (latitude, longitude) point, with the
// radius in meter.
var geocircle = new Geocircle(position, radius);
// Sets the events that we want to handle: in this case, the entrace and the exit
// from an area of intereset.
var mask = MonitoredGeofenceStates.Entered | MonitoredGeofenceStates.Exited;
// Specifies for how much time the user must have entered/exited the area before
// receiving the notification.
var dwellTime = TimeSpan.FromSeconds(1);
// Creates the Geofence and adds it to the GeofenceMonitor.
var geofence = new Geofence(id, geocircle, mask, false, dwellTime);
try
{
GeofenceMonitor.Current.Geofences.Add(geofence);
}
catch (Exception e)
{
Debug.WriteLine(e);
// geofence already added to system
}
}
Register Background Task
public static async Task RegisterBackgroundTask()
{
try
{
// Create a new background task builder
var geofenceTaskBuilder = new BackgroundTaskBuilder()
{
Name = GeofenceBackgroundTaskName,
TaskEntryPoint = "BackgroundTask.GeofenceBackgroundTask"
};
// Create a new location trigger
var trigger = new LocationTrigger(LocationTriggerType.Geofence);
// Associate the location trigger with the background task builder
geofenceTaskBuilder.SetTrigger(trigger);
var geofenceTask = geofenceTaskBuilder.Register();
// Associate an event handler with the new background task
geofenceTask.Completed += (sender, e) =>
{
try
{
e.CheckResult();
}
catch(Exception error)
{
Debug.WriteLine(error);
}
};
}
catch(Exception e)
{
// Background task probably exists
Debug.WriteLine(e);
}
}
BackgroundTask Code to Trigger Toast
namespace BackgroundTask
{
public sealed class GeofenceBackgroundTask : IBackgroundTask
{
public void Run(IBackgroundTaskInstance taskInstance)
{
var toastTemplate = ToastTemplateType.ToastText02;
var toastXML = ToastNotificationManager.GetTemplateContent(toastTemplate);
var textElements = toastXML.GetElementsByTagName("text");
textElements[0].AppendChild(toastXML.CreateTextNode("You have left!"));
var toast = new ToastNotification(toastXML);
ToastNotificationManager.CreateToastNotifier().Show(toast);
}
}
}
I've discovered that the above code sample, as well as the above code works. The problem that I was facing was that Windows Phone 8.1 does not automatically trigger a Geofence event. You have to wait a certain amount of time <5 mins before the BackgroundTask is triggered.
This applies to Geofencing in the foreground as well.
I'm busy with the same stuff, and I also noticed this behaviour, but for me its 2 mins.
Unfortunately it always triggers after 2 min, even, if there was no change in location and still inside the fence..

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