improve app stability and refactor to get better logs

src/Kp2aAutofillParser/AutofillParser.cs

@@ -476,8 +476,16 @@ namespace Kp2aAutofillParser
 
             foreach (var field in autofillFields.HintMap.Values.Distinct())
             {
+                if (field == null || field.AutofillHints == null)
+                {
+                    continue;
+                }
                 foreach (var hint in field.AutofillHints)
                 {
+                    if (hint == null)
+                    {
+                        continue;
+                    }
                     if (GetPartitionIndex(hint) == partitionIndex)
                     {
                         filteredCollection.Add(field);

src/Kp2aBusinessLogic/Utils/ExceptionUtil.cs

@@ -14,9 +14,16 @@ namespace KeePass.Util
         {
             string errorMessage = e.Message;
             if (e is Java.Lang.Exception javaException)
+            {
+                try
                 {
                     errorMessage = javaException.LocalizedMessage ?? javaException.Message ?? errorMessage;
                 }
+                finally
+                {
+
+                }
+            }
 
             return errorMessage;
         }

src/keepass2android-app/AppKilledInfo.cs

@@ -14,7 +14,7 @@ using keepass2android;
 
 namespace keepass2android
 {
-	[Activity(Label = AppNames.AppName)]
+	[Activity(Label = AppNames.AppName, Theme = "@style/Kp2aTheme_BlueNoActionBar")]
 	public class AppKilledInfo : Activity, IDialogInterfaceOnDismissListener
 	{
 		protected override void OnCreate(Bundle bundle)

src/keepass2android-app/GroupBaseActivity.cs

@@ -894,10 +894,15 @@ namespace keepass2android
                     RegisterInfoTextDisplay(
                         "DbReadOnly"); //this ensures that we don't show the general info texts too soon
 
-                    FindViewById<TextView>(Resource.Id.dbreadonly_infotext_text).Text =
+                    var infotext_view = FindViewById<TextView>(Resource.Id.dbreadonly_infotext_text);
+                    if (infotext_view != null)
+                    {
+                        infotext_view.Text =
                             (GetString(Resource.String.FileReadOnlyMessagePre) + " " +
                              App.Kp2a.GetResourceString(reason.Result));
                     }
+                    
+                }
             }
             UpdateBottomBarElementVisibility(Resource.Id.dbreadonly_infotext, canShow);
         }

src/keepass2android-app/app/App.cs

@@ -1245,7 +1245,7 @@ namespace keepass2android
 	    {
 	        var db = TryFindDatabaseForElement(element);
             if (db == null)
-                throw new Exception("Database element not found!");
+                throw new Exception($"Database element {element.Uuid} not found in any of {OpenDatabases.Count()} databases!");
 	        return db;
 	    }
 

src/keepass2android-app/app/AppTask.cs

@@ -15,6 +15,7 @@ using Android.Content.Res;
 using Android.Preferences;
 using Google.Android.Material.Dialog;
 using keepass2android;
+using PluginTOTP;
 
 namespace keepass2android
 {
@@ -637,6 +638,21 @@ namespace keepass2android
 			}
 
             if (CopyTotpToClipboard && isTotpEntry)
+            {
+                DoCopyTotpToClipboard(activity, pwEntryOutput, totpPluginAdapter);
+            }
+
+            if (CloseAfterCreate)
+            {
+				//give plugins and TOTP time to do their work:
+                notifyPluginsOnOpenThread.Join(TimeSpan.FromSeconds(1));
+                //close
+                activity.CloseAfterTaskComplete();	
+			}
+		}
+
+        private static void DoCopyTotpToClipboard(EntryActivity activity, PwEntryOutput pwEntryOutput,
+            ITotpPluginAdapter? totpPluginAdapter)
         {
             Dictionary<string, string> entryFields = pwEntryOutput.OutputStrings.ToDictionary(pair => StrUtil.SafeXmlString(pair.Key), pair => pair.Value.ReadString());
             var totpData = totpPluginAdapter.GetTotpData(entryFields, activity, true);
@@ -649,17 +665,6 @@ namespace keepass2android
                 App.Kp2a.ShowMessage(activity, activity.GetString(Resource.String.TotpCopiedToClipboard),
                     MessageSeverity.Info);
             }
-
-                
-            }
-
-            if (CloseAfterCreate)
-            {
-				//give plugins and TOTP time to do their work:
-                notifyPluginsOnOpenThread.Join(TimeSpan.FromSeconds(1));
-                //close
-                activity.CloseAfterTaskComplete();	
-			}
         }
     }
 

src/keepass2android-app/services/AutofillBase/ChooseForAutofillActivityBase.cs

@@ -189,7 +189,7 @@ namespace keepass2android.services.AutofillBase
         {
             var intent = Intent;
             AssistStructure structure = (AssistStructure)intent.GetParcelableExtra(AutofillManager.ExtraAssistStructure);
-            if (structure == null)
+            if (structure == null || clientFormDataMap == null)
             {
                 SetResult(Result.Canceled);
                 Finish();