From d60099738d1097b02503af839975b171c2d83853 Mon Sep 17 00:00:00 2001
From: ARIYAMA Keiji <keiji.ariyama@gmail.com>
Date: Wed, 15 Dec 2021 22:56:59 +0900
Subject: [PATCH] Fix the WorkManager scheduling issue.

---
 .../Covid19Radar.Android/MainActivity.cs      |  3 +++
 .../Covid19Radar.Android/MainApplication.cs   | 19 +++++++++++++++----
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/Covid19Radar/Covid19Radar.Android/MainActivity.cs b/Covid19Radar/Covid19Radar.Android/MainActivity.cs
index 79b768f99..0f0a80bf5 100644
--- a/Covid19Radar/Covid19Radar.Android/MainActivity.cs
+++ b/Covid19Radar/Covid19Radar.Android/MainActivity.cs
@@ -18,6 +18,7 @@
 using Covid19Radar.Common;
 using Covid19Radar.Services.Logs;
 using Prism.Ioc;
+using AndroidX.AppCompat.App;
 
 namespace Covid19Radar.Droid
 {
@@ -83,6 +84,8 @@ protected override async void OnCreate(Bundle savedInstanceState)
             base.SetTheme(Resource.Style.MainTheme);
             base.OnCreate(savedInstanceState);
 
+            AppCompatDelegate.DefaultNightMode = AppCompatDelegate.ModeNightNo;
+
             Xamarin.Forms.Forms.SetFlags("RadioButton_Experimental");
             Xamarin.Essentials.Platform.Init(this, savedInstanceState);
             Xamarin.Forms.Forms.Init(this, savedInstanceState);
diff --git a/Covid19Radar/Covid19Radar.Android/MainApplication.cs b/Covid19Radar/Covid19Radar.Android/MainApplication.cs
index bdfa266f0..51a34053d 100644
--- a/Covid19Radar/Covid19Radar.Android/MainApplication.cs
+++ b/Covid19Radar/Covid19Radar.Android/MainApplication.cs
@@ -15,7 +15,6 @@
 using Chino;
 using Chino.Android.Google;
 using System.Collections.Generic;
-using AndroidX.AppCompat.App;
 using Prism.Ioc;
 
 namespace Covid19Radar.Droid
@@ -35,13 +34,18 @@ private readonly JobSetting _exposureDetectedV2JobSetting
             = new JobSetting(INITIAL_BACKOFF_MILLIS, Android.App.Job.BackoffPolicy.Linear, true);
         private readonly JobSetting _exposureNotDetectedJobSetting = null;
 
-
         private Lazy<AbsExposureNotificationApiService> _exposureNotificationApiService
             = new Lazy<AbsExposureNotificationApiService>(() => ContainerLocator.Current.Resolve<AbsExposureNotificationApiService>());
 
         private Lazy<IExposureDetectionService> _exposureDetectionService
             = new Lazy<IExposureDetectionService>(() => ContainerLocator.Current.Resolve<IExposureDetectionService>());
 
+        private Lazy<AbsExposureDetectionBackgroundService> _exposureDetectionBackgroundService
+            = new Lazy<AbsExposureDetectionBackgroundService>(() => ContainerLocator.Current.Resolve<AbsExposureDetectionBackgroundService>());
+
+        private Lazy<ILoggerService> _loggerService
+            = new Lazy<ILoggerService>(() => ContainerLocator.Current.Resolve<ILoggerService>());
+
         public MainApplication(IntPtr handle, JniHandleOwnership transfer) : base(handle, transfer)
         {
         }
@@ -62,8 +66,6 @@ public override void OnCreate()
         {
             base.OnCreate();
 
-            AppCompatDelegate.DefaultNightMode = AppCompatDelegate.ModeNightNo;
-
             App.InitializeServiceLocator(RegisterPlatformTypes);
 
             AbsExposureNotificationClient.Handler = this;
@@ -71,6 +73,15 @@ public override void OnCreate()
             {
                 SetupENClient(exposureNotificationApiService.Client);
             }
+
+            try
+            {
+                _exposureDetectionBackgroundService.Value.Schedule();
+            }
+            catch (Exception exception)
+            {
+                _loggerService.Value.Exception("failed to Scheduling", exception);
+            }
         }
 
         private void SetupENClient(ExposureNotificationClient client)