DavidIjsud
commented
7 months ago @SticksDev are you still getting the error? if so, then what other versions of ios did you test it?
Open SticksDev opened 7 months ago
DavidIjsud
commented
7 months ago @SticksDev are you still getting the error? if so, then what other versions of ios did you test it?
SticksDev
commented
7 months ago iOS 17.0.3 and I used your demo app, which also did not work.
project4-0
commented
7 months ago Hello I have the same problem. Background task are running on IOS only if Workmanager is initialized in debug mode = true. Workmanager().initialize(callbackDispatcher, isInDebugMode: true); If isInDebugMode = false. Does not start.
project4-0
commented
7 months ago I do register the oneOffTask with static method like this. On Android works. but on IOS not. static void registerOneOffTask( {required String taskKey, required String taskName, required Map<String, dynamic> inputData, required Duration initialDelay}) { try { Constraints constraints = Constraints( networkType: NetworkType.not_required, requiresBatteryNotLow: false, requiresCharging: false, requiresDeviceIdle: false, requiresStorageNotLow: false, ); if(Platform.isIOS){ Workmanager().registerOneOffTask(taskKey, taskName, initialDelay: initialDelay,constraints: constraints, inputData: inputData, existingWorkPolicy: ExistingWorkPolicy.append); }else { Workmanager().registerOneOffTask(taskKey, taskName, initialDelay: initialDelay, inputData: inputData, existingWorkPolicy: ExistingWorkPolicy.append); } if (kDebugMode) { DateTime executionTime = DateTime.now().add(initialDelay); print('Task $taskKey will be executed at $executionTime'); } } catch (e, s) { if (kDebugMode) { print('Error in registerOneOffTask'); print(e); print(s); } } }
SticksDev
commented
7 months ago Any updates?
brunodmn
commented
6 months ago I am not able to use it as well. I follow documentation in details, I even created a new project just to test this package only.
BGTaskScheduler works if I triggered by e -l objc -- (void)[[BGTaskScheduler sharedScheduler] _simulateLaunchForTaskWithIdentifier:@"task-identifier"], not on function call on flutter.
Background Fetch won't work or throw any erros (trying to trigger it by Xcode>debug>Simulate Background Fetch)
I have:
background_service.dart:
import 'dart:io';
import 'package:workmanager/workmanager.dart';
@pragma(
'vm:entry-point') // Mandatory if the App is obfuscated or using Flutter 3.1+
void callbackDispatcher() {
Workmanager().executeTask((task, inputData) {
switch (task) {
case Workmanager.iOSBackgroundTask:
stderr.writeln("The iOS background fetch was triggered");
print(
"The iOS background fetch was triggered"); //simpleTask will be emitted here.
break;
default:
print(
"Native called background task: $task"); //simpleTask will be emitted here.
break;
}
return Future.value(true);
});
}
class BackgruondService {
static Future<void> initialize() async {
Workmanager().initialize(
callbackDispatcher, // The top level function, aka callbackDispatcher
isInDebugMode:
true // If enabled it will post a notification whenever the task is running. Handy for debugging tasks
);
Workmanager().registerOneOffTask("task-identifier", "simpleTask");
}
}AppDelegate.swift:
import UIKit
import Flutter
import workmanager
@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
override func application(
_ application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
) -> Bool {
GeneratedPluginRegistrant.register(with: self)
// WORKMANAGER
UNUserNotificationCenter.current().delegate = self
WorkmanagerPlugin.setPluginRegistrantCallback { registry in
// Registry in this case is the FlutterEngine that is created in Workmanager's
// performFetchWithCompletionHandler or BGAppRefreshTask.
// This will make other plugins available during a background operation.
GeneratedPluginRegistrant.register(with: registry)
}
WorkmanagerPlugin.registerTask(withIdentifier: "task-identifier")
// background fetch
UIApplication.shared.setMinimumBackgroundFetchInterval(TimeInterval(60*15))
// WORKMANAGER
return super.application(application, didFinishLaunchingWithOptions: launchOptions)
}
}
Info.plist:
(...)
<key>BGTaskSchedulerPermittedIdentifiers</key>
<array>
<string>task-identifier</string>
</array>
<key>UIBackgroundModes</key>
<array>
<string>fetch</string>
<string>processing</string>
</array>
(...)Am I missing something? Documentation does not seem quite up to date...
DominicGBauer
commented
5 months ago I moved to this PR and it seems to be working for me now https://github.com/fluttercommunity/flutter_workmanager/pull/511
joonne
commented
1 month ago Commenting now on multiple issues while debugging the issue with plugins on iOS background isolates, but it finally seems that the missing piece was this:
// AppDelegate.swift
GeneratedPluginRegistrant.register(with: self)
WorkmanagerPlugin.setPluginRegistrantCallback { registry in
GeneratedPluginRegistrant.register(with: registry)
}With the above added (after GeneratedPluginRegistrant.register(with: self), I'm finally able to call SharedPreferences and also the Firebase.initializeApp() successfully 🎉
I did not find this documented anywhere, I'll try to find a suitable place from the official README.
dsourav
commented
1 month ago Commenting now on multiple issues while debugging the issue with plugins on iOS background isolates, but it finally seems that the missing piece was this:
// AppDelegate.swift GeneratedPluginRegistrant.register(with: self) WorkmanagerPlugin.setPluginRegistrantCallback { registry in GeneratedPluginRegistrant.register(with: registry) }With the above added (after
GeneratedPluginRegistrant.register(with: self), I'm finally able to callSharedPreferencesand also theFirebase.initializeApp()successfully 🎉I did not find this documented anywhere, I'll try to find a suitable place from the official README.
It worked.
teenrage-dev
commented
2 weeks ago Commenting now on multiple issues while debugging the issue with plugins on iOS background isolates, but it finally seems that the missing piece was this:
// AppDelegate.swift GeneratedPluginRegistrant.register(with: self) WorkmanagerPlugin.setPluginRegistrantCallback { registry in GeneratedPluginRegistrant.register(with: registry) }With the above added (after
GeneratedPluginRegistrant.register(with: self), I'm finally able to callSharedPreferencesand also theFirebase.initializeApp()successfully 🎉I did not find this documented anywhere, I'll try to find a suitable place from the official README.
It worked, thank u
Version
Describe the error I have followed all of the setup steps, run the command in the debugger, and nothing happens. No errors, just the task does not get triggered at all. I both have the
@pragma('vm:entry-point')on my task handler and listen for both the name and the iosbackroundtask enum. My initial print doesn't even get logged either...Ideas? Is This a possible bug? Thanks.
Output of
flutter doctor -v