From 4ded1de12e00409ae479afb1069dfc0e21f392a8 Mon Sep 17 00:00:00 2001
From: "Zach Keeping [SSW]" <11418832+zacharykeeping@users.noreply.github.com>
Date: Mon, 12 Feb 2024 15:13:11 +1100
Subject: [PATCH] =?UTF-8?q?=F0=9F=90=9B=20Mobile=20|=20Fix=20crash=20when?=
 =?UTF-8?q?=20switching=20tabs=20(#657)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

* Move WeakReferenceMessenger registration to constructor

* Revert "Move WeakReferenceMessenger registration to constructor"

This reverts commit 11dfe847f4baa154bf80ca54e8a6f305a1ec617c.

* Check for message registration before registering

* Fix logic
---
 .../ViewModels/ProfileViewModels/ProfileViewModelBase.cs       | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/MobileUI/ViewModels/ProfileViewModels/ProfileViewModelBase.cs b/src/MobileUI/ViewModels/ProfileViewModels/ProfileViewModelBase.cs
index 8a8d85035..13cd8ffb4 100644
--- a/src/MobileUI/ViewModels/ProfileViewModels/ProfileViewModelBase.cs
+++ b/src/MobileUI/ViewModels/ProfileViewModels/ProfileViewModelBase.cs
@@ -76,6 +76,9 @@ public ProfileViewModelBase(IRewardService rewardsService, IUserService userServ
 
     public void OnAppearing()
     {
+        if (WeakReferenceMessenger.Default.IsRegistered<AchievementTappedMessage>(this))
+            return;
+        
         WeakReferenceMessenger.Default.RegisterAll(this);
     }