needs migration flag

src/Android/MainApplication.cs

@@ -43,6 +43,11 @@ namespace Bit.Droid
 
         private void RegisterLocalServices()
         {
+            var settingsShim = new App.Migration.SettingsShim();
+            ServiceContainer.Register("settingsShim", settingsShim);
+            App.Utilities.AppHelpers.NeedsMigration =
+                settingsShim.GetValueOrDefault(Constants.OldLastActivityKey, DateTime.MinValue) > DateTime.MinValue;
+
             Refractored.FabControl.Droid.FloatingActionButtonViewRenderer.Init();
             // Note: This might cause a race condition. Investigate more.
             Task.Run(() =>

src/Android/Migration/AndroidKeyStoreStorageService.cs

@@ -12,6 +12,7 @@ using Java.Util;
 using Javax.Crypto.Spec;
 using Android.Preferences;
 using Bit.App.Migration;
+using Bit.Core.Utilities;
 
 namespace Bit.Droid.Migration
 {
@@ -39,7 +40,7 @@ namespace Bit.Droid.Migration
             _oldAndroid = Build.VERSION.SdkInt < BuildVersionCodes.M;
             _rsaMode = _oldAndroid ? "RSA/ECB/PKCS1Padding" : "RSA/ECB/OAEPWithSHA-1AndMGF1Padding";
 
-            _settings = new SettingsShim();
+            _settings = ServiceContainer.Resolve<SettingsShim>("settingsShim");
 
             _keyStore = KeyStore.GetInstance(AndroidKeyStore);
             _keyStore.Load(null);

src/App/Utilities/AppHelpers.cs

@@ -13,6 +13,8 @@ namespace Bit.App.Utilities
 {
     public static class AppHelpers
     {
+        public static bool NeedsMigration = false;
+
         public static async Task<string> CipherListOptions(ContentPage page, CipherView cipher)
         {
             var platformUtilsService = ServiceContainer.Resolve<IPlatformUtilsService>("platformUtilsService");
@@ -114,17 +116,19 @@ namespace Bit.App.Utilities
         public static async Task<bool> PerformUpdateTasksAsync(ISyncService syncService,
             IDeviceActionService deviceActionService, IStorageService storageService)
         {
-            var lastSync = await syncService.GetLastSyncAsync();
             var currentBuild = deviceActionService.GetBuildNumber();
             var lastBuild = await storageService.GetAsync<string>(Constants.LastBuildKey);
-            if(lastBuild == null)
+            if(!NeedsMigration)
             {
-                // Installed
-            }
-            else if(lastBuild != currentBuild)
-            {
-                // Updated
-                var tasks = Task.Run(() => syncService.FullSyncAsync(true));
+                if(lastBuild == null)
+                {
+                    // Installed
+                }
+                else if(lastBuild != currentBuild)
+                {
+                    // Updated
+                    var tasks = Task.Run(() => syncService.FullSyncAsync(true));
+                }
             }
             if(lastBuild != currentBuild)
             {

src/Core/Constants.cs

@@ -24,6 +24,7 @@
         public static string ClearClipboardKey = "clearClipboard";
         public static string LastClipboardValueKey = "lastClipboardValue";
         public static string LastBuildKey = "lastBuild";
+        public static string OldLastActivityKey = "other:lastActivityDate";
         public const int SelectFileRequestCode = 42;
         public const int SelectFilePermissionRequestCode = 43;
     }