From e05502626c5e49baa7be9fdd1af5b30ed06b29df Mon Sep 17 00:00:00 2001
From: Nick Randolph <nick@builttoroam.com>
Date: Tue, 5 Jun 2018 22:39:22 +1000
Subject: [PATCH] Adjusting startup behaviour

---
 MvvmCross/ViewModels/MvxAppStart.cs | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/MvvmCross/ViewModels/MvxAppStart.cs b/MvvmCross/ViewModels/MvxAppStart.cs
index c80f30a365..985b0751ae 100644
--- a/MvvmCross/ViewModels/MvxAppStart.cs
+++ b/MvvmCross/ViewModels/MvxAppStart.cs
@@ -29,25 +29,25 @@ public void Start(object hint = null)
             if (Interlocked.CompareExchange(ref startHasCommenced, 1, 0) == 1)
                 return;
 
-            Startup(hint).GetAwaiter().GetResult();
+            StartAsync(hint).GetAwaiter().GetResult();
         }
 
         public async Task StartAsync(object hint = null)
         {
-            var applicationHint = ApplicationStartup(hint);
+            var applicationHint = await ApplicationStartup(hint);
             if (applicationHint != null)
             {
                 MvxLog.Instance.Trace("Hint ignored in default MvxAppStart");
             }
 
-            NavigateToFirstViewModel(applicationHint);
+            await NavigateToFirstViewModel(applicationHint);
         }
 
-        protected abstract void NavigateToFirstViewModel(object hint = null);
+        protected abstract Task NavigateToFirstViewModel(object hint = null);
 
-        protected virtual object ApplicationStartup(object hint = null)
+        protected virtual async Task<object> ApplicationStartup(object hint = null)
         {
-            Application.Startup();
+            await Application.Startup();
             return hint;
         }
 
@@ -72,11 +72,11 @@ public MvxAppStart(IMvxApplication application, IMvxNavigationService navigation
         {
         }
 
-        protected override void NavigateToFirstViewModel(object hint = null)
+        protected override async Task NavigateToFirstViewModel(object hint = null)
         {
             try
             {
-                NavigationService.Navigate<TViewModel>().GetAwaiter().GetResult();
+                await NavigationService.Navigate<TViewModel>();
             }
             catch (System.Exception exception)
             {
@@ -91,16 +91,16 @@ public MvxAppStart(IMvxApplication application, IMvxNavigationService navigation
         {
         }
 
-        protected override object ApplicationStartup(object hint = null)
+        protected override async Task<object> ApplicationStartup(object hint = null)
         {
-            var applicationHint = base.ApplicationStartup(hint);
+            var applicationHint = await base.ApplicationStartup(hint);
             if (applicationHint is TParameter parameter && Application is IMvxApplication<TParameter> typedApplication)
                 return typedApplication.Startup(parameter);
             else
                 return applicationHint;
         }
 
-        protected override void NavigateToFirstViewModel(object hint = null)
+        protected override async Task NavigateToFirstViewModel(object hint = null)
         {
             try
             {
@@ -109,7 +109,7 @@ protected override void NavigateToFirstViewModel(object hint = null)
                 else
                 {
                     MvxLog.Instance.Trace($"Hint is not matching type of {nameof(TParameter)}. Doing navigation without typed parameter instead.");
-                    base.NavigateToFirstViewModel(hint);
+                    await base.NavigateToFirstViewModel(hint);
                 }
             }
             catch (System.Exception exception)