Feature/quick settings tile

src/keepass2android-app/Manifests/AndroidManifest_debug.xml

@@ -281,6 +281,16 @@ The scheme=file is still there for old OS devices. It's also queried by apps lik
     <meta-data android:name="com.sec.android.multiwindow.DEFAULT_SIZE_H" android:value="598.0dip" />
     <meta-data android:name="com.sec.android.multiwindow.MINIMUM_SIZE_W" android:value="426.0dip" />
     <meta-data android:name="com.sec.android.multiwindow.MINIMUM_SIZE_H" android:value="360.0dip" />
+	<service
+	    android:name="keepass2android.QuickSettingsTileService"
+	    android:icon="@drawable/ic_quick_settings_tile"
+	    android:label="@string/app_name"
+	    android:permission="android.permission.BIND_QUICK_SETTINGS_TILE"
+	    android:exported="true">
+	    <intent-filter>
+	        <action android:name="android.service.quicksettings.action.QS_TILE" />
+	    </intent-filter>
+	</service>
   </application>
   <uses-permission android:name="android.permission.VIBRATE" />
   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

src/keepass2android-app/Manifests/AndroidManifest_net.xml

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <!--
  This file is part of Keepass2Android, Copyright 2025 Philipp Crocoll.
 
@@ -290,6 +290,16 @@ The scheme=file is still there for old OS devices. It's also queried by apps lik
     <meta-data android:name="com.sec.android.multiwindow.DEFAULT_SIZE_H" android:value="598.0dip" />
     <meta-data android:name="com.sec.android.multiwindow.MINIMUM_SIZE_W" android:value="426.0dip" />
     <meta-data android:name="com.sec.android.multiwindow.MINIMUM_SIZE_H" android:value="360.0dip" />
+	<service
+	    android:name="keepass2android.QuickSettingsTileService"
+	    android:icon="@drawable/ic_quick_settings_tile"
+	    android:label="@string/app_name"
+	    android:permission="android.permission.BIND_QUICK_SETTINGS_TILE"
+	    android:exported="true">
+	    <intent-filter>
+	        <action android:name="android.service.quicksettings.action.QS_TILE" />
+	    </intent-filter>
+	</service>
   </application>
   <uses-permission android:name="android.permission.VIBRATE" />
   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

src/keepass2android-app/Manifests/AndroidManifest_nonet.xml

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <!--
  This file is part of Keepass2Android, Copyright 2025 Philipp Crocoll.
 
@@ -266,6 +266,16 @@ The scheme=file is still there for old OS devices. It's also queried by apps lik
     <meta-data android:name="com.sec.android.multiwindow.DEFAULT_SIZE_H" android:value="598.0dip" />
     <meta-data android:name="com.sec.android.multiwindow.MINIMUM_SIZE_W" android:value="426.0dip" />
     <meta-data android:name="com.sec.android.multiwindow.MINIMUM_SIZE_H" android:value="360.0dip" />
+	<service
+	    android:name="keepass2android.QuickSettingsTileService"
+	    android:icon="@drawable/ic_quick_settings_tile"
+	    android:label="@string/app_name"
+	    android:permission="android.permission.BIND_QUICK_SETTINGS_TILE"
+	    android:exported="true">
+	    <intent-filter>
+	        <action android:name="android.service.quicksettings.action.QS_TILE" />
+	    </intent-filter>
+	</service>
   </application>
   <uses-permission android:name="android.permission.VIBRATE" />
   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

src/keepass2android-app/QuickSettingsTileService.cs

@@ -0,0 +1,78 @@
+/*
+ * Keepass2Android - Password Manager for Android
+ * Copyright (C) 2025 Philipp Crocoll
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * * ---
+ * Module: QuickSettingsTileService
+ * Description: Provides a system-wide Quick Settings Tile to launch the application.
+ * This service allows users to quickly access their password database from the 
+ * Android notification shade.
+ */
+
+using System;
+using Android.App;
+using Android.Content;
+using Android.Service.QuickSettings;
+using Android.Graphics.Drawables;
+
+namespace keepass2android
+{
+    /// <summary>
+    /// Service to provide a Quick Settings Tile for the Android notification shade.
+    /// </summary>
+    [Service(Name = "keepass2android.QuickSettingsTileService",
+             Permission = Android.Manifest.Permission.BindQuickSettingsTile,
+             Label = "@string/app_name", 
+             Icon = "@drawable/ic_quick_settings_tile", 
+             Exported = true)]
+    [IntentFilter(new[] { TileService.ActionQsTile })]
+    public class QuickSettingsTileService : TileService
+    {
+        /// <summary>
+        /// Called when the user taps the tile in the Quick Settings panel.
+        /// </summary>
+        public override void OnClick()
+        {
+            base.OnClick();
+
+            // Security check: prompt for device unlock if the phone is currently locked.
+            if (IsLocked)
+            {
+                UnlockAndRun(new Java.Lang.Runnable(() => {
+                    StartKp2a();
+                }));
+            }
+            else
+            {
+                StartKp2a();
+            }
+        }
+
+        /// <summary>
+        /// Launches the main application entry point.
+        /// </summary>
+        private void StartKp2a()
+        {
+            // Redirect to LaunchActivity to handle database lock/unlock state.
+            Intent intent = new Intent(this, typeof(LaunchActivity));
+
+            // Flags to handle activity stack and background-to-foreground transition.
+            intent.AddFlags(ActivityFlags.NewTask | ActivityFlags.ClearTop);
+
+            // Closes the notification drawer and executes the intent.
+            StartActivityAndCollapse(intent);
+        }
+    }
+}

src/keepass2android-app/Resources/drawable/ic_quick_settings_tile.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FFFFFFFF"
+        android:fillType="evenOdd"
+        android:pathData="M8.6,7a0.88,0.88 0,1 1,-0.89 0.88A0.88,0.88 0,0 1,8.6,7Zm4.88,0.88A0.89,0.89 0,1 0,14.37 7,0.88 0.88,0 0,0 13.48,7.83ZM2.13,20.3V22H20.87V20.3Zm0,-9V13H20.87V11.25Zm0,4.72h7A2.3,2.3 0,0 1,9 15.52a2.39,2.39 0,0 1,0.36 -1.25H2.13Zm18.74,0v-1.7H13.53a2.27,2.27 0,0 1,0.31 1.7ZM2.13,17.28V19H8.89l0.52,-1.71Zm11.38,0L14,19h6.84V17.28ZM12.73,19,12,16.54l0.1,-0.06a1.19,1.19 0,0 0,0.6 -1,1.21,1.21 0,0 0,-2.41 0,1.19,1.19 0,0 0,0.6 1l0.1,0.06L10.2,19ZM15.44,4.28h0l1.29,-1.86A0.26,0.26 0,0 0,16.68 2a0.27,0.27 0,0 0,-0.37 0.09L15,4.07h0a9.32,9.32 0,0 0,-3.5 -0.67,9.6,9.6 0,0 0,-3.56 0.68l-1.36,-2A0.27,0.27 0,0 0,6.17 2a0.26,0.26 0,0 0,0 0.37l1.31,1.9a6.63,6.63 0,0 0,-4 5.84H4.93C4.93,7.28 7.86,5 11.45,5S18,7.28 18,10.15h1.55A6.64,6.64 0,0 0,15.44,4.28Z" />
+</vector>