* update target-sdk version to 33. update some packages (build currently fails for flavor=Net, but works with NoNet)

* make changes to comply with new target sdk version requirements (mostly Exported-attribute and mutability flags)
* drop samsung fingerprint support (as suggested by Samsung), would require more hacks to keep it with the new target sdk version
* add build-properties.props to allow specifying a flavor in VS builds.

src/KeePass.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 16
+# Visual Studio Version 17
-VisualStudioVersion = 16.0.29418.71
+VisualStudioVersion = 17.4.33205.214
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "KeePassLib2Android", "KeePassLib2Android\KeePassLib2Android.csproj", "{545B4A6B-8BBA-4FBE-92FC-4AC060122A54}"
 EndProject
@@ -25,8 +25,6 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PCloudBindings", "PCloudBin
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "keepass2android-app", "keepass2android\keepass2android-app.csproj", "{D4C32E0A-0193-4496-9DB4-02CC126FD9F3}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SamsungPass", "SamsungPass\Xamarin.SamsungPass\SamsungPass\SamsungPass.csproj", "{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -285,30 +283,6 @@ Global
 		{D4C32E0A-0193-4496-9DB4-02CC126FD9F3}.ReleaseNoNet|x64.ActiveCfg = Release|Any CPU
 		{D4C32E0A-0193-4496-9DB4-02CC126FD9F3}.ReleaseNoNet|x64.Build.0 = Release|Any CPU
 		{D4C32E0A-0193-4496-9DB4-02CC126FD9F3}.ReleaseNoNet|x64.Deploy.0 = Release|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Debug|Mixed Platforms.ActiveCfg = Debug|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Debug|Mixed Platforms.Build.0 = Debug|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Debug|Win32.ActiveCfg = Debug|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Debug|Win32.Build.0 = Debug|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Debug|x64.Build.0 = Debug|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Release|Any CPU.Build.0 = Release|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Release|Mixed Platforms.ActiveCfg = Release|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Release|Mixed Platforms.Build.0 = Release|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Release|Win32.ActiveCfg = Release|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Release|Win32.Build.0 = Release|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Release|x64.ActiveCfg = Release|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.Release|x64.Build.0 = Release|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.ReleaseNoNet|Any CPU.ActiveCfg = ReleaseNoNet|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.ReleaseNoNet|Any CPU.Build.0 = ReleaseNoNet|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.ReleaseNoNet|Mixed Platforms.ActiveCfg = ReleaseNoNet|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.ReleaseNoNet|Mixed Platforms.Build.0 = ReleaseNoNet|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.ReleaseNoNet|Win32.ActiveCfg = ReleaseNoNet|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.ReleaseNoNet|Win32.Build.0 = ReleaseNoNet|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.ReleaseNoNet|x64.ActiveCfg = ReleaseNoNet|Any CPU
-		{3A4B8E88-FA9B-4663-BCDA-21C12E3AF98A}.ReleaseNoNet|x64.Build.0 = ReleaseNoNet|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

src/Kp2aBusinessLogic/Kp2aBusinessLogic.csproj

@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" InitialTargets="showFlavor">
+<Target Name="showFlavor" AfterTargets="Build">
+        <Message Importance="high" Text="building flavor $(Flavor)"></Message>
+    </Target>
+<Import Project="../build-properties.props"/>
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
@@ -12,7 +16,7 @@
     <FileAlignment>512</FileAlignment>
     <AndroidResgenFile>Resources\Resource.designer.cs</AndroidResgenFile>
     <GenerateSerializationAssemblies>Off</GenerateSerializationAssemblies>
-    <TargetFrameworkVersion>v11.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v13.0</TargetFrameworkVersion>
     <AndroidUseLatestPlatformSdk>false</AndroidUseLatestPlatformSdk>
     <Flavor Condition=" '$(Flavor)' != '' ">$(Flavor)</Flavor>
     <NuGetPackageImportStamp>
@@ -181,16 +185,16 @@
       <Version>31.3.1</Version>
     </PackageReference>
     <PackageReference Include="MegaApiClient">
-      <Version>1.10.2</Version>
+      <Version>1.10.3</Version>
     </PackageReference>
     <PackageReference Include="Microsoft.Graph">
       <Version>1.21.0</Version>
     </PackageReference>
     <PackageReference Include="Microsoft.Graph.Auth">
-      <Version>1.0.0-preview.1</Version>
+      <Version>1.0.0-preview.7</Version>
     </PackageReference>
     <PackageReference Include="Microsoft.Identity.Client">
-      <Version>4.8.2</Version>
+      <Version>4.49.1</Version>
     </PackageReference>
   </ItemGroup>
   <ItemGroup>
@@ -297,7 +301,7 @@
       <Version>28.0.0.3</Version>
     </PackageReference>
     <PackageReference Include="Xamarin.AndroidX.Preference">
-      <Version>1.1.1.11</Version>
+      <Version>1.2.0.3</Version>
     </PackageReference>
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\Android\Xamarin.Android.CSharp.targets" />

src/build-properties.props

@@ -0,0 +1,9 @@
+<Project>
+<PropertyGroup>
+
+
+<Flavor>NoNet</Flavor>
+
+</PropertyGroup>
+
+</Project>

src/java/JavaFileStorage/app/build.gradle

@@ -39,7 +39,7 @@ dependencies {
     implementation 'com.google.api-client:google-api-client:1.30.5'
     implementation 'com.google.api-client:google-api-client-android:1.30.5'
 
-    implementation 'com.google.android.gms:play-services-auth:19.2.0'
+    implementation 'com.google.android.gms:play-services-auth:20.4.0'
     //onedrive:
     compile('com.onedrive.sdk:onedrive-sdk-android:1.2.0') {
         transitive = false

src/java/KP2ASoftkeyboard_AS/app/build.gradle

@@ -3,6 +3,8 @@ android {
     compileSdkVersion 23
     buildToolsVersion '28.0.3'
 
+    ndkVersion '21.0.6113669'
+
     defaultConfig {
         minSdkVersion 18
     }

src/keepass2android/AboutActivity.cs

@@ -10,7 +10,8 @@ namespace keepass2android
 {
 	[Activity(Label = "@string/app_name",
 		ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.KeyboardHidden,
-		Theme = "@style/MyTheme_ActionBar")]
+		Theme = "@style/MyTheme_ActionBar",
+        Exported = true)]
 	[IntentFilter(new[] { "kp2a.action.AboutActivity" }, Categories = new[] { Intent.CategoryDefault })]
 	public class AboutActivity: Activity, IDialogInterfaceOnDismissListener
 	{

src/keepass2android/ConfigureChildDatabasesActivity.cs

@@ -28,7 +28,7 @@ using Object = Java.Lang.Object;
 
 namespace keepass2android
 {
-    [Activity(Label = "@string/child_dbs_title", MainLauncher = false, Theme = "@style/MyTheme_Blue", LaunchMode = LaunchMode.SingleInstance, ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.Keyboard | ConfigChanges.KeyboardHidden)]
+    [Activity(Label = "@string/child_dbs_title", MainLauncher = false, Theme = "@style/MyTheme_Blue", LaunchMode = LaunchMode.SingleInstance, ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.Keyboard | ConfigChanges.KeyboardHidden, Exported = true)]
     [IntentFilter(new[] { "kp2a.action.ConfigureChildDatabasesActivity" }, Categories = new[] { Intent.CategoryDefault })]
     public class ConfigureChildDatabasesActivity : LockCloseActivity
     {

src/keepass2android/DisableAutofillForQueryActivity.cs

@@ -68,6 +68,12 @@ namespace keepass2android
             Intent reply = new Intent();
             FillResponse.Builder builder = new FillResponse.Builder();
             AssistStructure structure = (AssistStructure)Intent.GetParcelableExtra(AutofillManager.ExtraAssistStructure);
+            if (structure == null)
+            {
+                SetResult(Result.Canceled);
+                Finish();
+                return;
+            }
             StructureParser parser = new StructureParser(this, structure);
             try
             {

src/keepass2android/ExportDatabaseActivity.cs

@@ -41,7 +41,7 @@ namespace keepass2android
 
 	[Activity(Label = "@string/app_name",
 	    ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.Keyboard | ConfigChanges.KeyboardHidden,
-        Theme = "@style/MyTheme_ActionBar")]
+        Theme = "@style/MyTheme_ActionBar", Exported = true)]
 	[IntentFilter(new[] {"kp2a.action.ExportDatabaseActivity"}, Categories = new[] {Intent.CategoryDefault})]
 	public class ExportDatabaseActivity : LockCloseActivity
 	{

src/keepass2android/FingerprintSamsungIdentifier.cs

@@ -1,157 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-
-using Android.App;
-using Android.Content;
-using Android.Hardware.Biometrics;
-using Android.OS;
-using Android.Runtime;
-using Android.Util;
-using Android.Views;
-using Android.Widget;
-using Com.Samsung.Android.Sdk;
-using Com.Samsung.Android.Sdk.Pass;
-using Java.Lang;
-
-namespace keepass2android
-{
-	class BiometrySamsungIdentifier: IBiometricIdentifier
-	{
-        private readonly Context _context;
-        SpassFingerprint _spassFingerprint;
-		Spass _spass;
-		public BiometrySamsungIdentifier(Context context)
-		{
-            _context = context;
-            _spass = new Spass();
-
-			try
-			{
-				_spass.Initialize(context);
-			}
-			catch (SecurityException)
-			{
-				//"Did you add the permission to the AndroidManifest.xml?");
-				throw;
-			}
-
-			if (_spass.IsFeatureEnabled(Spass.DeviceFingerprint))
-			{
-				_spassFingerprint = new SpassFingerprint(context);
-			}
-			else
-			{
-				throw new RuntimeException("Fingerprint Featue not available.");
-			}
-
-
-		}
-
-		public bool Init()
-		{
-			try
-			{
-				return _spassFingerprint.HasRegisteredFinger;
-			}
-			catch (UnsupportedOperationException)
-			{
-				return false;
-			}
-			
-			
-		}
-		class IdentifyListener : Java.Lang.Object, IIdentifyListener
-		{
-			private readonly IBiometricAuthCallback _callback;
-			private readonly Context _context;
-			private readonly BiometrySamsungIdentifier _id;
-
-
-			public IdentifyListener(IBiometricAuthCallback callback, Context context, BiometrySamsungIdentifier id)
-			{
-				_callback = callback;
-				_context = context;
-				_id = id;
-			}
-
-			
-
-			public void OnFinished (int responseCode)
-			{
-				_id.Listening = false;
-				if (responseCode == SpassFingerprint.StatusAuthentificationSuccess) 
-				{
-					_callback.OnBiometricAuthSucceeded();
-				} 
-				else if (responseCode == SpassFingerprint.StatusAuthentificationPasswordSuccess) 
-				{
-					_callback.OnBiometricAuthSucceeded();
-				} 
-				
-			}
-
-			public void OnReady ()
-			{
-				
-			}
-			public void OnCompleted()
-			{
-				// TODO
-			}
-
-			public void OnStarted ()
-			{
-				
-			}
-		}
-
-		internal bool Listening
-		{
-			get; set;
-		}
-
-
-		public void StartListening(IBiometricAuthCallback callback)
-		{
-			if (Listening) return;
-
-			try 
-			{
-				_spassFingerprint.StartIdentifyWithDialog(_context, new IdentifyListener(callback, _context, this), false);
-				Listening = true;
-			} 
-			catch (SpassInvalidStateException m)
-			{
-				callback.OnBiometricError(m.Message);
-			} 
-			catch (IllegalStateException ex) 
-			{
-				callback.OnBiometricError(ex.Message);
-			}
-		}
-
-		public void StopListening()
-		{
-			try
-			{
-				_spassFingerprint.CancelIdentify();
-				Listening = false;
-			}
-			catch (IllegalStateException ise)
-			{
-				Kp2aLog.Log(ise.ToString());
-			}
-			catch (System.Exception e)
-			{
-				Kp2aLog.LogUnexpectedError(e);
-			}
-		}
-
-        public bool HasUserInterface
-        {
-            get { return false; }
-        }
-    }
-}

src/keepass2android/FingerprintSetupActivity.cs

@@ -22,7 +22,7 @@ namespace keepass2android
 {
 	[Activity(Label = "@string/app_name",
 	    ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.Keyboard | ConfigChanges.KeyboardHidden,
-		Theme = "@style/MyTheme_ActionBar", MainLauncher = false)]
+		Theme = "@style/MyTheme_ActionBar", MainLauncher = false, Exported = true)]
 	[IntentFilter(new[] { "kp2a.action.FingerprintSetupActivity" }, Categories = new[] { Intent.CategoryDefault })]
 	public class BiometricSetupActivity : LockCloseActivity, IBiometricAuthCallback
 	{
@@ -142,29 +142,6 @@ namespace keepass2android
 			FindViewById(Resource.Id.close_database_after_failed).Visibility = _unlockMode == FingerprintUnlockMode.QuickUnlock ? ViewStates.Visible : ViewStates.Gone;
 		}
 		
-		private bool TrySetupSamsung()
-		{
-			try
-			{
-				//try to create a Samsung ID object 
-				_samsungBiometry = new BiometrySamsungIdentifier(this);
-				if (!_samsungBiometry.Init())
-				{
-					SetError(Resource.String.fingerprint_no_enrolled);
-				}
-				ShowRadioButtons();
-				FindViewById(Resource.Id.container_fingerprint_unlock).Visibility = _samsungBiometry == null
-					? ViewStates.Visible
-					: ViewStates.Gone;
-				return true;
-			}
-			catch (Exception)
-			{
-				_samsungBiometry = null;
-				return false;
-			}
-		}
-
 		string CurrentPreferenceKey
 		{
 			get { return App.Kp2a.CurrentDb.CurrentFingerprintPrefKey; }
@@ -246,17 +223,6 @@ namespace keepass2android
 				return;
 
 			
-			if (_samsungBiometry != null)
-			{
-				_unlockMode = newMode;
-				UpdateCloseDatabaseAfterFailedBiometricQuickUnlockVisibility();
-			
-				ISharedPreferencesEditor edit = PreferenceManager.GetDefaultSharedPreferences(this).Edit();
-				edit.PutString(App.Kp2a.CurrentDb.CurrentFingerprintModePrefKey, _unlockMode.ToString());
-				edit.Commit();
-				return;
-			}
-
 			if (newMode == FingerprintUnlockMode.Disabled)
 			{
 				_unlockMode = newMode;
@@ -296,8 +262,6 @@ namespace keepass2android
 		private ImageView _fpIcon;
 		private TextView _fpTextView;
 		
-		private BiometrySamsungIdentifier _samsungBiometry;
-
 		public void OnBiometricAuthSucceeded()
 		{
 			_unlockMode = _desiredUnlockMode;
@@ -353,8 +317,6 @@ namespace keepass2android
             HideRadioButtons();
             if (!fpModule.IsHardwareAvailable)
             {
-                //seems like not all Samsung Devices (e.g. Note 4) don't support the Android 6 fingerprint API
-                if (!TrySetupSamsung())
                 SetError(Resource.String.fingerprint_hardware_error);
                 UpdateCloseDatabaseAfterFailedBiometricQuickUnlockVisibility();
                 return;

src/keepass2android/GroupActivity.cs

@@ -42,7 +42,7 @@ using Object = Java.Lang.Object;
 
 namespace keepass2android
 {
-	[Activity(Label = "@string/app_name", ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.Keyboard | ConfigChanges.KeyboardHidden, Theme = "@style/MyTheme_ActionBar")]
+	[Activity(Label = "@string/app_name", ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.Keyboard | ConfigChanges.KeyboardHidden, Theme = "@style/MyTheme_ActionBar", Exported = true)]
 	[MetaData("android.app.default_searchable", Value = "keepass2android.search.SearchResults")]
 #if NoNet
     [MetaData("android.app.searchable", Resource = "@xml/searchable_offline")]

src/keepass2android/KeePass.cs

@@ -68,7 +68,7 @@ namespace keepass2android
 	/// <summary>
 	/// Launcher activity of Keepass2Android. This activity usually forwards to SelectCurrentDb but may show the revision dialog after installation or updates.
 	/// </summary>
-	[Activity(Label = AppNames.AppName, MainLauncher = false, Theme = "@style/MyTheme_Blue")]
+	[Activity(Label = AppNames.AppName, MainLauncher = false, Theme = "@style/MyTheme_Blue", Exported = true)]
 	[IntentFilter(new[] { Intent.ActionMain }, Categories = new[] { "android.intent.category.LAUNCHER", "android.intent.category.MULTIWINDOW_LAUNCHER" })]
 	public class KeePass : LifecycleAwareActivity, IDialogInterfaceOnDismissListener
 	{

src/keepass2android/NfcOtpActivity.cs

@@ -17,6 +17,7 @@ namespace keepass2android
 			   ConfigurationChanges = ConfigChanges.Orientation |
 			   ConfigChanges.KeyboardHidden,
 			   NoHistory = true,
+			   Exported = true,
 			   ExcludeFromRecents = true,
 			   Theme = "@android:style/Theme.Dialog")]
 	[IntentFilter(new[] { "android.nfc.action.NDEF_DISCOVERED" },

src/keepass2android/Properties/AndroidManifest_net.xml

@@ -43,7 +43,7 @@
 	  </intent>
   </queries>			
 			
-	<uses-sdk android:minSdkVersion="21" android:targetSdkVersion="31" />
+	<uses-sdk android:minSdkVersion="21" android:targetSdkVersion="33" />
   <permission android:description="@string/permission_desc2" android:icon="@drawable/ic_launcher" android:label="KP2A entry search" android:name="keepass2android.keepass2android.permission.KP2aInternalSearch" android:protectionLevel="signature" />
   <permission android:description="@string/permission_desc3" android:icon="@drawable/ic_launcher" android:label="KP2A choose autofill dataset" android:name="keepass2android.keepass2android.permission.Kp2aChooseAutofill" android:protectionLevel="signature" />
   
@@ -87,13 +87,13 @@
 		<activity android:name="group.pals.android.lib.ui.filechooser.FileChooserActivity" android:configChanges="keyboard|keyboardHidden|orientation|screenSize" android:screenOrientation="user" android:theme="@style/Afc.Theme.Light">
 		</activity>
 
-		<service android:name="keepass2android.softkeyboard.KP2AKeyboard" android:permission="android.permission.BIND_INPUT_METHOD">
+		<service android:name="keepass2android.softkeyboard.KP2AKeyboard" android:permission="android.permission.BIND_INPUT_METHOD" android:exported="true">
 			<intent-filter>
 				<action android:name="android.view.InputMethod" />
 			</intent-filter>
 			<meta-data android:name="android.view.im" android:resource="@xml/method" />
 		</service>
-		<activity android:name="keepass2android.softkeyboard.LatinIMESettings" android:label="@string/english_ime_settings">
+		<activity android:name="keepass2android.softkeyboard.LatinIMESettings" android:label="@string/english_ime_settings" android:exported="true">
 			<intent-filter>
 				<action android:name="android.intent.action.MAIN" />
 			</intent-filter>
@@ -103,14 +103,15 @@
 			</intent-filter>
 		</activity>
 		 <activity android:name="keepass2android.softkeyboard.InputLanguageSelection"
-                android:label="@string/language_selection_title">
+                android:label="@string/language_selection_title"
+                android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <action android:name="keepass2android.softkeyboard.INPUT_LANGUAGE_SELECTION"/>
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
         </activity>
-		<activity android:configChanges="orientation|keyboard|keyboardHidden" android:label="@string/app_name" android:theme="@style/MyTheme_Blue" android:name="keepass2android.SelectCurrentDbActivity"  android:windowSoftInputMode="adjustResize">
+		<activity android:configChanges="orientation|keyboard|keyboardHidden" android:label="@string/app_name" android:theme="@style/MyTheme_Blue" android:name="keepass2android.SelectCurrentDbActivity"  android:windowSoftInputMode="adjustResize" android:exported="true">
       <intent-filter android:label="@string/app_name">
         <action android:name="android.intent.action.VIEW" />
         <category android:name="android.intent.category.DEFAULT" />
@@ -272,6 +273,4 @@ The scheme=file is still there for old OS devices. It's also queried by apps lik
 	<!-- Samsung Pass permission -->
 	<uses-permission android:name="com.samsung.android.providers.context.permission.WRITE_USE_APP_FEATURE_SURVEY" />
 	
-	<!-- READ_PHONE_STATE seems to come from some library or so, not clear where. We don't want to have it, remove it: -->
-	<uses-permission android:name="android.permission.READ_PHONE_STATE" tools:node="remove" />
 </manifest>

src/keepass2android/Properties/AndroidManifest_nonet.xml

@@ -40,7 +40,7 @@
 	  </intent>
   </queries>			
 			
-	<uses-sdk android:minSdkVersion="18" android:targetSdkVersion="30" />
+	<uses-sdk android:minSdkVersion="18" android:targetSdkVersion="33" />
   <permission android:description="@string/permission_desc2" android:icon="@drawable/ic_launcher_offline" android:label="KP2A entry search" android:name="keepass2android.keepass2android_nonet.permission.KP2aInternalSearch" android:protectionLevel="signature" />
   <permission android:description="@string/permission_desc3" android:icon="@drawable/ic_launcher_offline" android:label="KP2A choose autofill dataset" android:name="keepass2android.keepass2android_nonet.permission.Kp2aChooseAutofill" android:protectionLevel="signature" />
 	<application 
@@ -57,13 +57,13 @@
 		<activity android:name="group.pals.android.lib.ui.filechooser.FileChooserActivity" android:configChanges="keyboard|keyboardHidden|orientation|screenSize" android:screenOrientation="user" android:theme="@style/Afc.Theme.Light">
 		</activity>
 
-		<service android:name="keepass2android.softkeyboard.KP2AKeyboard" android:permission="android.permission.BIND_INPUT_METHOD">
+		<service android:name="keepass2android.softkeyboard.KP2AKeyboard" android:permission="android.permission.BIND_INPUT_METHOD" android:exported="true">
 			<intent-filter>
 				<action android:name="android.view.InputMethod" />
 			</intent-filter>
 			<meta-data android:name="android.view.im" android:resource="@xml/method" />
 		</service>
-		<activity android:name="keepass2android.softkeyboard.LatinIMESettings" android:label="@string/english_ime_settings">
+		<activity android:name="keepass2android.softkeyboard.LatinIMESettings" android:label="@string/english_ime_settings" android:exported="true">
 			<intent-filter>
 				<action android:name="android.intent.action.MAIN" />
 			</intent-filter>
@@ -73,7 +73,8 @@
 			</intent-filter>
 		</activity>
 		 <activity android:name="keepass2android.softkeyboard.InputLanguageSelection"
-                android:label="@string/language_selection_title">
+                android:label="@string/language_selection_title"
+                android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <action android:name="keepass2android.softkeyboard.INPUT_LANGUAGE_SELECTION"/>
@@ -81,7 +82,8 @@
             </intent-filter>
         </activity>
  
-		<activity android:configChanges="orientation|keyboard|keyboardHidden" android:label="@string/app_name" android:theme="@style/MyTheme_Blue" android:name="keepass2android.SelectCurrentDbActivity" android:windowSoftInputMode="adjustResize">
+		<activity android:configChanges="orientation|keyboard|keyboardHidden" android:label="@string/app_name" android:theme="@style/MyTheme_Blue" android:name="keepass2android.SelectCurrentDbActivity" android:windowSoftInputMode="adjustResize"
+              android:exported="true">
       <intent-filter android:label="@string/app_name">
         <action android:name="android.intent.action.VIEW" />
         <category android:name="android.intent.category.DEFAULT" />
@@ -244,9 +246,5 @@ The scheme=file is still there for old OS devices. It's also queried by apps lik
 
   <uses-permission android:name="keepass2android.keepass2android_nonet.permission.KP2aInternalFileBrowsing" />
   <uses-permission android:name="keepass2android.keepass2android_nonet.permission.KP2aInternalSearch" />
-	<!-- Samsung Pass permission -->
-	<uses-permission android:name="com.samsung.android.providers.context.permission.WRITE_USE_APP_FEATURE_SURVEY" />
 	
-	<!-- READ_PHONE_STATE seems to come from some library or so, not clear where. We don't want to have it, remove it: -->
-	<uses-permission android:name="android.permission.READ_PHONE_STATE" tools:node="remove" />
 </manifest>

src/keepass2android/Properties/AssemblyInfo.cs

@@ -46,3 +46,4 @@ using keepass2android;
 
 [assembly: Permission(Name = "keepass2android."+AppNames.PackagePart+".permission.CopyToClipboard", Label = "CopyToClipboard", ProtectionLevel=Protection.Signature)]
 [assembly: UsesPermission(Name = "keepass2android." + AppNames.PackagePart + ".permission.CopyToClipboard")]
+[assembly: UsesPermission(Android.Manifest.Permission.ForegroundService)]

src/keepass2android/QueryCredentialsActivity.cs

@@ -16,6 +16,7 @@ namespace keepass2android
 {
 	[Activity(Label = "@string/app_name",
 		ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.KeyboardHidden,
+		Exported = true,
         Theme = "@style/MyTheme_ActionBar")]
 	[IntentFilter(new[] { Strings.ActionQueryCredentials},
 		Categories = new[] { Intent.CategoryDefault })]

src/keepass2android/QuickUnlock.cs

@@ -270,31 +270,7 @@ namespace keepass2android
 					_biometryIdentifier = new BiometricDecryption(fpModule, App.Kp2a.GetDbForQuickUnlock().CurrentFingerprintPrefKey, this,
 						App.Kp2a.GetDbForQuickUnlock().CurrentFingerprintPrefKey);
 				
-				if ((_biometryIdentifier == null) && (!BiometricDecryption.IsSetUp(this, App.Kp2a.GetDbForQuickUnlock().CurrentFingerprintPrefKey)))
-				{
-					try
-					{
-						Kp2aLog.Log("trying Samsung Fingerprint API...");
-						_biometryIdentifier = new BiometrySamsungIdentifier(this);
-						btn.Click += (sender, args) =>
-						{
-                            if (_biometryIdentifier.Init())
-                            {
-                                if (numFailedAttempts  < maxNumFailedAttempts)
-                                {
-                                    _biometryIdentifier.StartListening(this);
-                                }
 				
-                            }
-                        };
-						Kp2aLog.Log("trying Samsung Fingerprint API...Seems to work!");
-					}
-					catch (Exception)
-					{
-						Kp2aLog.Log("trying Samsung Fingerprint API...failed.");
-						_biometryIdentifier = null;
-					}
-				}
 			    if (_biometryIdentifier == null)
 			    {
 			        FindViewById<ImageButton>(Resource.Id.fingerprintbtn).Visibility = ViewStates.Gone;

src/keepass2android/SelectCurrentDbActivity.cs

@@ -31,6 +31,7 @@ namespace keepass2android
     [Activity(Label = AppNames.AppName, 
         MainLauncher = false, 
         Theme = "@style/MyTheme_Blue", 
+        Exported = true,
         LaunchMode = LaunchMode.SingleInstance)] //caution, see manifest file
     public class SelectCurrentDbActivity : LifecycleAwareActivity
     {

src/keepass2android/ShareUrlResults.cs

@@ -31,7 +31,7 @@ using KeePassLib.Utility;
 
 namespace keepass2android
 {
-    [Activity(Label = "@string/kp2a_findUrl", ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.Keyboard | ConfigChanges.KeyboardHidden, Theme = "@style/MyTheme_ActionBar")]
+    [Activity(Label = "@string/kp2a_findUrl", ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.Keyboard | ConfigChanges.KeyboardHidden, Theme = "@style/MyTheme_ActionBar", Exported = true)]
 #if NoNet
     [MetaData("android.app.searchable", Resource = "@xml/searchable_offline")]
 #else

src/keepass2android/Utils/Util.cs

@@ -394,6 +394,14 @@ namespace keepass2android
 			get { return (int)Build.VERSION.SdkInt >= 19; }
 		}
 
+
+        public static PendingIntentFlags AddMutabilityFlag(PendingIntentFlags flags, PendingIntentFlags mutability)
+        {
+            if ((int)Build.VERSION.SdkInt >= 31)
+                return flags | mutability;
+            else return flags;
+        }
+
         private static void ShowInternalLocalFileChooser(Activity act, int requestCodeBrowse, bool forSaving, string defaultPath)
 		{
 			

src/keepass2android/keepass2android-app.csproj

@@ -1,5 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" InitialTargets="showFlavor">
+  <Target Name="showFlavor" AfterTargets="Build">
+    <Message Importance="high" Text="building flavor $(Flavor)">
+    </Message>
+  </Target>
+  <Import Project="../build-properties.props" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
@@ -19,7 +24,7 @@
     <AndroidResgenClass>Resource</AndroidResgenClass>
     <GenerateSerializationAssemblies>Off</GenerateSerializationAssemblies>
     <AndroidUseLatestPlatformSdk>false</AndroidUseLatestPlatformSdk>
-    <TargetFrameworkVersion>v11.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v13.0</TargetFrameworkVersion>
     <AndroidManifest>Properties\AndroidManifest_debug.xml</AndroidManifest>
     <MonoAndroidResourcePrefix>Resources</MonoAndroidResourcePrefix>
     <MonoAndroidAssetsPrefix>Assets</MonoAndroidAssetsPrefix>
@@ -99,6 +104,9 @@
     <PackageReference Include="Xamarin.AndroidX.RecyclerView">
       <Version>1.2.1.3</Version>
     </PackageReference>
+    <PackageReference Include="Xamarin.Build.Download">
+      <Version>0.11.4</Version>
+    </PackageReference>
     <PackageReference Include="ZXing.Net.Mobile">
       <Version>3.1.0-beta2</Version>
     </PackageReference>
@@ -186,7 +194,6 @@
     <Compile Include="EntryActivityClasses\WriteBinaryToFilePopupItem.cs" />
     <Compile Include="FileSelectHelper.cs" />
     <Compile Include="BiometricModule.cs" />
-    <Compile Include="FingerprintSamsungIdentifier.cs" />
     <Compile Include="FingerprintSetupActivity.cs" />
     <Compile Include="ExportDatabaseActivity.cs" />
     <Compile Include="fileselect\FileChooserFileProvider.cs" />
@@ -1953,10 +1960,6 @@
       <Project>{3da3911e-36de-465e-8f15-f1991b6437e5}</Project>
       <Name>PluginSdkBinding</Name>
     </ProjectReference>
-    <ProjectReference Include="..\SamsungPass\Xamarin.SamsungPass\SamsungPass\SamsungPass.csproj">
-      <Project>{3a4b8e88-fa9b-4663-bcda-21c12e3af98a}</Project>
-      <Name>SamsungPass</Name>
-    </ProjectReference>
     <ProjectReference Include="..\TwofishCipher\TwofishCipher.csproj">
       <Project>{5cf675a5-9bee-4720-bed9-d5bf14a2ebf9}</Project>
       <Name>TwofishCipher</Name>

src/keepass2android/pluginhost/PluginDetailsActivity.cs

@@ -19,7 +19,7 @@ using keepass2android.views;
 
 namespace keepass2android
 {
-	[Activity(Label = AppNames.AppName, Theme = "@style/android:Theme.Material.Light")]
+	[Activity(Label = AppNames.AppName, Theme = "@style/android:Theme.Material.Light", Exported = true)]
 	[IntentFilter(new[] { Strings.ActionEditPluginSettings },
 		Label = AppNames.AppName,
 		Categories = new[] { Intent.CategoryDefault })]

src/keepass2android/pluginhost/PluginHost.cs

@@ -5,6 +5,7 @@ using Android.App;
 using Android.Content;
 using Android.Content.PM;
 using Android.Util;
+using Group.Pals.Android.Lib.UI.Filechooser.Utils;
 using KeePassLib.Utility;
 using Keepass2android.Pluginsdk;
 using Org.Json;
@@ -14,7 +15,7 @@ namespace keepass2android
 	/// <summary>
 	/// Class which manages plugins inside the app
 	/// </summary>
-	[BroadcastReceiver]
+	[BroadcastReceiver(Exported = true)]
 	[IntentFilter(new[] { Strings.ActionRequestAccess })]
 	public class PluginHost : BroadcastReceiver
 	{

src/keepass2android/pluginhost/PluginListActivity.cs

@@ -9,7 +9,7 @@ using Keepass2android.Pluginsdk;
 
 namespace keepass2android
 {
-	[Activity(Label = "@string/plugins", ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.KeyboardHidden, Theme="@style/android:Theme.Material.Light")]
+	[Activity(Label = "@string/plugins", ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.KeyboardHidden, Theme="@style/android:Theme.Material.Light", Exported = true)]
 	[IntentFilter(new[] { "kp2a.action.PluginListActivity" }, Categories = new[] { Intent.CategoryDefault })]
 	public class PluginListActivity : ListActivity
 	{

src/keepass2android/search/SearchResults.cs

@@ -31,7 +31,7 @@ namespace keepass2android.search
 	/// <summary>
 	/// Activity to show search results
 	/// </summary>
-    [Activity(Label = "@string/app_name", Theme = "@style/MyTheme_ActionBar", LaunchMode = Android.Content.PM.LaunchMode.SingleTop, Permission="keepass2android."+AppNames.PackagePart+".permission.KP2aInternalSearch", ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.Keyboard | ConfigChanges.KeyboardHidden)]
+    [Activity(Label = "@string/app_name", Theme = "@style/MyTheme_ActionBar", LaunchMode = Android.Content.PM.LaunchMode.SingleTop, Permission="keepass2android."+AppNames.PackagePart+".permission.KP2aInternalSearch", ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.Keyboard | ConfigChanges.KeyboardHidden, Exported = true)]
 #if NoNet
     [MetaData("android.app.searchable", Resource = "@xml/searchable_offline")]
 #else

src/keepass2android/services/AutofillBase/AutofillHelper.cs

@@ -30,7 +30,8 @@ namespace keepass2android.services.AutofillBase
             }
             //make sure we have a pendingIntent always not null
             pendingIntent ??= PendingIntent.GetService(context, 0, new Intent(),
-                PendingIntentFlags.OneShot | PendingIntentFlags.UpdateCurrent);
+                Util.AddMutabilityFlag(PendingIntentFlags.OneShot | PendingIntentFlags.UpdateCurrent, PendingIntentFlags.Mutable));
+            
             var slice = CreateInlinePresentationSlice(
                 inlinePresentationSpec,
                 text,
@@ -46,6 +47,7 @@ namespace keepass2android.services.AutofillBase
             return null;
         }
 
+
         private static Android.App.Slices.Slice CreateInlinePresentationSlice(
             InlinePresentationSpec inlinePresentationSpec,
             string text,
@@ -107,7 +109,7 @@ namespace keepass2android.services.AutofillBase
             datasetBuilder.SetId(datasetName);
 
             var setValueAtLeastOnce = filledAutofillFieldCollection.ApplyToFields(autofillFields, datasetBuilder);
-            AddInlinePresentation(context, inlinePresentationSpec, datasetName, datasetBuilder, intentBuilder.AppIconResource);
+            AddInlinePresentation(context, inlinePresentationSpec, datasetName, datasetBuilder, intentBuilder.AppIconResource, null);
 
             if (setValueAtLeastOnce)
             {
@@ -121,11 +123,13 @@ namespace keepass2android.services.AutofillBase
             return null;
         }
 
-        public static void AddInlinePresentation(Context context, InlinePresentationSpec inlinePresentationSpec, string datasetName, Dataset.Builder datasetBuilder, int iconId)
+        public static void AddInlinePresentation(Context context, InlinePresentationSpec inlinePresentationSpec,
+            string datasetName, Dataset.Builder datasetBuilder, int iconId, PendingIntent pendingIntent)
         {
             if (inlinePresentationSpec != null)
             {
-                var inlinePresentation = BuildInlinePresentation(inlinePresentationSpec, datasetName, "", iconId, null, context);
+                var inlinePresentation = BuildInlinePresentation(inlinePresentationSpec, datasetName, "", iconId, pendingIntent, context);
+                if (inlinePresentation != null)
                     datasetBuilder.SetInlinePresentation(inlinePresentation);
             }
         }

src/keepass2android/services/AutofillBase/AutofillServiceBase.cs

@@ -25,12 +25,12 @@ namespace keepass2android.services.AutofillBase
 {
     public interface IAutofillIntentBuilder
     {
-        IntentSender GetAuthIntentSenderForResponse(Context context, string query, string queryDomain, string queryPackage,
+        PendingIntent GetAuthPendingIntentForResponse(Context context, string query, string queryDomain, string queryPackage,
             bool isManualRequest, bool autoReturnFromQuery, AutofillServiceBase.DisplayWarning warning);
 
-        IntentSender GetAuthIntentSenderForWarning(Context context, string query, string queryDomain, string queryPackage, AutofillServiceBase.DisplayWarning warning);
+        PendingIntent GetAuthPendingIntentForWarning(Context context, string query, string queryDomain, string queryPackage, AutofillServiceBase.DisplayWarning warning);
 
-        IntentSender GetDisableIntentSenderForResponse(Context context, string query, 
+        PendingIntent GetDisablePendingIntentForResponse(Context context, string query, 
             bool isManualRequest, bool isDisable);
         Intent GetRestartAppIntent(Context context);
 
@@ -266,8 +266,8 @@ namespace keepass2android.services.AutofillBase
                 else
                 {
                     //return an "auth" dataset (actually for just warning the user in case domain/package dont match)
-                    IntentSender sender =
+                    PendingIntent pendingIntent =
-                        IntentBuilder.GetAuthIntentSenderForWarning(this, query, queryDomain, queryPackage, warning);
+                        IntentBuilder.GetAuthPendingIntentForWarning(this, query, queryDomain, queryPackage, warning);
                     var datasetName = filledAutofillFieldCollection.DatasetName;
                     if (datasetName == null)
                     {
@@ -279,9 +279,9 @@ namespace keepass2android.services.AutofillBase
                         AutofillHelper.NewRemoteViews(PackageName, datasetName, AppNames.LauncherIcon);
 
                     var datasetBuilder = new Dataset.Builder(presentation);
-                    datasetBuilder.SetAuthentication(sender);
+                    datasetBuilder.SetAuthentication(pendingIntent?.IntentSender);
 
-                    AutofillHelper.AddInlinePresentation(this, inlinePresentationSpec, datasetName, datasetBuilder, AppNames.LauncherIcon);
+                    AutofillHelper.AddInlinePresentation(this, inlinePresentationSpec, datasetName, datasetBuilder, AppNames.LauncherIcon, null);
 
                     //need to add placeholders so we can directly fill after ChooseActivity
                     foreach (var autofillId in autofillIds)
@@ -310,20 +310,20 @@ namespace keepass2android.services.AutofillBase
 
         private void AddQueryDataset(string query, string queryDomain, string queryPackage, bool isManual, AutofillId[] autofillIds, FillResponse.Builder responseBuilder, bool autoReturnFromQuery, DisplayWarning warning, InlinePresentationSpec inlinePresentationSpec)
         {
-            var sender = IntentBuilder.GetAuthIntentSenderForResponse(this, query, queryDomain, queryPackage, isManual, autoReturnFromQuery, warning);
+            PendingIntent pendingIntent = IntentBuilder.GetAuthPendingIntentForResponse(this, query, queryDomain, queryPackage, isManual, autoReturnFromQuery, warning);
             string text = GetString(Resource.String.autofill_sign_in_prompt);
-            RemoteViews presentation = AutofillHelper.NewRemoteViews(base.PackageName,
+            RemoteViews overlayPresentation = AutofillHelper.NewRemoteViews(base.PackageName,
                 text, AppNames.LauncherIcon);
 
-            var datasetBuilder = new Dataset.Builder(presentation);
+            var datasetBuilder = new Dataset.Builder(overlayPresentation);
-            datasetBuilder.SetAuthentication(sender);
+            datasetBuilder.SetAuthentication(pendingIntent?.IntentSender);
             //need to add placeholders so we can directly fill after ChooseActivity
             foreach (var autofillId in autofillIds)
             {
                 datasetBuilder.SetValue(autofillId, AutofillValue.ForText("PLACEHOLDER"));
             }
 
-            AutofillHelper.AddInlinePresentation(this, inlinePresentationSpec, text, datasetBuilder, AppNames.LauncherIcon);
+            AutofillHelper.AddInlinePresentation(this, inlinePresentationSpec, text, datasetBuilder, AppNames.LauncherIcon, pendingIntent);
 
 
             responseBuilder.AddDataset(datasetBuilder.Build());
@@ -364,16 +364,16 @@ namespace keepass2android.services.AutofillBase
             if (isQueryDisabled && !isManual)
                 return;
             bool isForDisable = !isQueryDisabled;
-            var sender = IntentBuilder.GetDisableIntentSenderForResponse(this, query, isManual, isForDisable);
+            var pendingIntent = IntentBuilder.GetDisablePendingIntentForResponse(this, query, isManual, isForDisable);
 
             string text = GetString(isForDisable ? Resource.String.autofill_disable : Resource.String.autofill_enable_for, new Java.Lang.Object[] { GetDisplayNameForQuery(query, this) });
             RemoteViews presentation = AutofillHelper.NewRemoteViews(base.PackageName,
                 text, Resource.Drawable.ic_menu_close_grey);
 
             var datasetBuilder = new Dataset.Builder(presentation);
-            datasetBuilder.SetAuthentication(sender);
+            datasetBuilder.SetAuthentication(pendingIntent?.IntentSender);
 
-            AutofillHelper.AddInlinePresentation(this, inlinePresentationSpec, text, datasetBuilder, Resource.Drawable.ic_menu_close_grey);
+            AutofillHelper.AddInlinePresentation(this, inlinePresentationSpec, text, datasetBuilder, Resource.Drawable.ic_menu_close_grey, null);
 
             foreach (var autofillId in autofillIds)
             {

src/keepass2android/services/CopyToClipboardService.cs

@@ -201,7 +201,7 @@ namespace keepass2android
                 extra.PutInt("requestCode", requestCode);
                 intent.PutExtras(extra);
 
-                return PendingIntent.GetBroadcast(_ctx, requestCode, intent, PendingIntentFlags.CancelCurrent);
+                return PendingIntent.GetBroadcast(_ctx, requestCode, intent, Util.AddMutabilityFlag(PendingIntentFlags.CancelCurrent, PendingIntentFlags.Immutable));
             }
 
 
@@ -223,7 +223,7 @@ namespace keepass2android
                 PendingIntent pending;
                 if (intentText == null)
                 {
-                    pending = PendingIntent.GetActivity(_ctx.ApplicationContext, 0, new Intent(), 0);
+                    pending = PendingIntent.GetActivity(_ctx.ApplicationContext, 0, new Intent(), Util.AddMutabilityFlag(0, PendingIntentFlags.Immutable));
                 }
                 else
                 {
@@ -248,7 +248,8 @@ namespace keepass2android
                 PendingIntent pending;
                 Intent intent = new Intent(_ctx, typeof(CopyToClipboardBroadcastReceiver));
                 intent.SetAction(intentText);
-                pending = PendingIntent.GetBroadcast(_ctx, descResId, intent, PendingIntentFlags.CancelCurrent);
+                pending = PendingIntent.GetBroadcast(_ctx, descResId, intent, Util.AddMutabilityFlag(PendingIntentFlags.CancelCurrent, PendingIntentFlags.Immutable));
+                
                 return pending;
             }
 

src/keepass2android/services/Kp2aAutofill/Kp2aAutofillService.cs

@@ -17,7 +17,7 @@ using AutofillServiceBase = keepass2android.services.AutofillBase.AutofillServic
 
 namespace keepass2android.services
 {
-[Service(Label = AppNames.AppName, Permission=Manifest.Permission.BindAutofillService)]
+[Service(Label = AppNames.AppName, Permission=Manifest.Permission.BindAutofillService, Exported = true)]
     [IntentFilter(new [] {"android.service.autofill.AutofillService"})]
     [MetaData("android.autofill", Resource = "@xml/autofillservice")]
     [Register("keepass2android.services.Kp2aAutofillService")]

src/keepass2android/services/Kp2aAutofillIntentBuilder.cs

@@ -14,8 +14,9 @@ namespace keepass2android.services
 {
     class Kp2aAutofillIntentBuilder: IAutofillIntentBuilder
     {
+        private static int _pendingIntentRequestCode = 0;
 
-        public IntentSender GetAuthIntentSenderForResponse(Context context, string query, string queryDomain, string queryPackage,
+        public PendingIntent GetAuthPendingIntentForResponse(Context context, string query, string queryDomain, string queryPackage,
             bool isManualRequest, bool autoReturnFromQuery, AutofillServiceBase.DisplayWarning warning)
         {
             Intent intent = new Intent(context, typeof(ChooseForAutofillActivity));
@@ -25,10 +26,10 @@ namespace keepass2android.services
             intent.PutExtra(ChooseForAutofillActivityBase.ExtraIsManualRequest, isManualRequest);
             intent.PutExtra(ChooseForAutofillActivityBase.ExtraAutoReturnFromQuery, autoReturnFromQuery);
             intent.PutExtra(ChooseForAutofillActivityBase.ExtraDisplayWarning, (int)warning);
-            return PendingIntent.GetActivity(context, 0, intent, PendingIntentFlags.CancelCurrent).IntentSender;
+            return PendingIntent.GetActivity(context, _pendingIntentRequestCode++, intent, Util.AddMutabilityFlag(PendingIntentFlags.CancelCurrent, PendingIntentFlags.Mutable));
         }
 
-        public IntentSender GetAuthIntentSenderForWarning(Context context, string query, string queryDomain, string queryPackage,
+        public PendingIntent GetAuthPendingIntentForWarning(Context context, string query, string queryDomain, string queryPackage,
             AutofillServiceBase.DisplayWarning warning)
         {
             Intent intent = new Intent(context, typeof(ChooseForAutofillActivity));
@@ -37,10 +38,10 @@ namespace keepass2android.services
             intent.PutExtra(ChooseForAutofillActivityBase.ExtraQueryPackageString, queryPackage);
             intent.PutExtra(ChooseForAutofillActivityBase.ExtraDisplayWarning, (int)warning);
             intent.PutExtra(ChooseForAutofillActivityBase.ExtraUseLastOpenedEntry, true);
-            return PendingIntent.GetActivity(context, 0, intent, PendingIntentFlags.CancelCurrent).IntentSender;
+            return PendingIntent.GetActivity(context, _pendingIntentRequestCode++, intent, Util.AddMutabilityFlag(PendingIntentFlags.CancelCurrent, PendingIntentFlags.Immutable));
         }
 
-        public IntentSender GetDisableIntentSenderForResponse(Context context, string query,
+        public PendingIntent GetDisablePendingIntentForResponse(Context context, string query,
             bool isManualRequest, bool isDisable)
         {
             Intent intent = new Intent(context, typeof(DisableAutofillForQueryActivity));
@@ -48,7 +49,7 @@ namespace keepass2android.services
             intent.PutExtra(ChooseForAutofillActivityBase.ExtraIsManualRequest, isManualRequest);
             intent.PutExtra(DisableAutofillForQueryActivity.ExtraIsDisable, isDisable);
 
-            return PendingIntent.GetActivity(context, 0, intent, PendingIntentFlags.CancelCurrent).IntentSender;
+            return PendingIntent.GetActivity(context, _pendingIntentRequestCode++, intent, Util.AddMutabilityFlag(PendingIntentFlags.CancelCurrent, PendingIntentFlags.Immutable));
         }
 
         public Intent GetRestartAppIntent(Context context)

src/keepass2android/services/OngoingNotificationsService.cs

@@ -173,7 +173,7 @@ namespace keepass2android
 			builder.SetContentIntent(GetSwitchToAppPendingIntent());
 			// Additional action to allow locking the database
 			builder.AddAction(Android.Resource.Drawable.IcLockLock, GetString(Resource.String.QuickUnlock_lockButton), 
-				PendingIntent.GetBroadcast(this, 0, new Intent(this, typeof(ApplicationBroadcastReceiver)).SetAction(Intents.CloseDatabase), PendingIntentFlags.UpdateCurrent));
+				PendingIntent.GetBroadcast(this, 0, new Intent(this, typeof(ApplicationBroadcastReceiver)).SetAction(Intents.CloseDatabase), Util.AddMutabilityFlag(PendingIntentFlags.UpdateCurrent, PendingIntentFlags.Immutable)));
 			
 
 			return builder.Build();
@@ -216,7 +216,7 @@ namespace keepass2android
 			// Default action is to show Kp2A
 			builder.SetContentIntent(GetSwitchToAppPendingIntent());
 			// Additional action to allow locking the database
-			builder.AddAction(Resource.Drawable.ic_action_lock, GetString(Resource.String.menu_lock), PendingIntent.GetBroadcast(this, 0, new Intent(this, typeof(ApplicationBroadcastReceiver)).SetAction(Intents.LockDatabase), PendingIntentFlags.UpdateCurrent));
+			builder.AddAction(Resource.Drawable.ic_action_lock, GetString(Resource.String.menu_lock), PendingIntent.GetBroadcast(this, 0, new Intent(this, typeof(ApplicationBroadcastReceiver)).SetAction(Intents.LockDatabase), Util.AddMutabilityFlag(PendingIntentFlags.UpdateCurrent, PendingIntentFlags.Immutable)));
 			
 			return builder.Build();
 		}
@@ -227,7 +227,7 @@ namespace keepass2android
 			startKp2aIntent.SetAction(Intent.ActionMain);
 			startKp2aIntent.AddCategory(Intent.CategoryLauncher);
 
-			return PendingIntent.GetActivity(this, 0, startKp2aIntent, PendingIntentFlags.UpdateCurrent);
+			return PendingIntent.GetActivity(this, 0, startKp2aIntent, Util.AddMutabilityFlag(PendingIntentFlags.UpdateCurrent, PendingIntentFlags.Immutable));
 		}
 
 		private static string GetDatabaseName()

src/keepass2android/timeout/TimeoutHelper.cs

@@ -35,7 +35,7 @@ namespace keepass2android
 			
 			private static PendingIntent BuildPendingBroadcastIntent(Context ctx)
 			{
-				return PendingIntent.GetBroadcast(ctx, 0, BuildBroadcastIntent(ctx), PendingIntentFlags.UpdateCurrent);
+				return PendingIntent.GetBroadcast(ctx, 0, BuildBroadcastIntent(ctx), Util.AddMutabilityFlag(PendingIntentFlags.UpdateCurrent, PendingIntentFlags.Immutable));
 			}
 
             private static Intent BuildBroadcastIntent(Context ctx)