Double Tap to Lock Screen gesture implemented

app/src/main/AndroidManifest.xml

@@ -35,7 +35,8 @@
             android:launchMode="singleTask"
             android:screenOrientation="portrait"
             android:theme="@style/Theme.YamLauncher"
-            android:windowSoftInputMode="adjustResize">
+            android:windowSoftInputMode="adjustResize"
+            tools:ignore="DiscouragedApi,LockedOrientationActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
@@ -44,6 +45,18 @@
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
         </activity>
+        <service
+            android:name=".ScreenLockService"
+            android:exported="false"
+            android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE">
+            <intent-filter>
+                <action android:name="android.accessibilityservice.AccessibilityService" />
+            </intent-filter>
+
+            <meta-data
+                android:name="android.screenLockService"
+                android:resource="@xml/screenlock_service_config" />
+        </service>
     </application>
 
 </manifest>

app/src/main/java/eu/ottop/yamlauncher/MainActivity.kt

@@ -1,11 +1,15 @@
 package eu.ottop.yamlauncher
 
+import android.accessibilityservice.AccessibilityService
+import android.accessibilityservice.AccessibilityServiceInfo
 import android.annotation.SuppressLint
+import android.app.AlertDialog
 import android.content.Context
 import android.content.Intent
 import android.content.SharedPreferences
 import android.content.pm.LauncherActivityInfo
 import android.content.pm.LauncherApps
+import android.content.pm.ServiceInfo
 import android.graphics.BlendMode
 import android.graphics.BlendModeColorFilter
 import android.graphics.Color
@@ -15,6 +19,7 @@ import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
 import android.os.UserHandle
+import android.provider.Settings
 import android.text.Editable
 import android.text.TextWatcher
 import android.view.GestureDetector
@@ -27,7 +32,7 @@ import android.view.View.TEXT_ALIGNMENT_TEXT_START
 import android.view.ViewTreeObserver
 import android.view.WindowInsets
 import android.view.WindowInsetsController
-import android.view.WindowManager
+import android.view.accessibility.AccessibilityManager
 import android.view.inputmethod.InputMethodManager
 import android.widget.LinearLayout
 import android.widget.TextClock
@@ -49,8 +54,8 @@ import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
-import kotlin.math.abs
 import java.lang.reflect.Method
+import kotlin.math.abs
 
 
 class MainActivity : AppCompatActivity(), SharedPreferences.OnSharedPreferenceChangeListener, AppMenuAdapter.OnItemClickListener, AppMenuAdapter.OnShortcutListener, AppMenuAdapter.OnItemLongClickListener {
@@ -427,6 +432,26 @@ class MainActivity : AppCompatActivity(), SharedPreferences.OnSharedPreferenceCh
             startActivity(Intent(this@MainActivity, SettingsActivity::class.java))
         }
 
+        override fun onDoubleTap(e: MotionEvent): Boolean {
+            if (preferences.getBoolean("doubleTap", false)) {
+                if (isAccessibilityServiceEnabled(
+                        this@MainActivity,
+                        ScreenLockService::class.java
+                    )
+                ) {
+                    println("enabled")
+                    val intent = Intent(this@MainActivity, ScreenLockService::class.java)
+                    intent.action = "LOCK_SCREEN"
+                    startService(intent)
+                } else {
+                    promptEnableAccessibility()
+                }
+            }
+
+            return super.onDoubleTap(e)
+
+        }
+
     }
 
     inner class TextGestureListener : GestureListener() {
@@ -435,6 +460,40 @@ class MainActivity : AppCompatActivity(), SharedPreferences.OnSharedPreferenceCh
         }
     }
 
+
+    fun isAccessibilityServiceEnabled(context: Context, service: Class<out AccessibilityService>): Boolean {
+        val am = context.getSystemService(ACCESSIBILITY_SERVICE) as AccessibilityManager
+        val enabledServices =
+            am.getEnabledAccessibilityServiceList(AccessibilityServiceInfo.FEEDBACK_ALL_MASK)
+
+        for (enabledService in enabledServices) {
+            val enabledServiceInfo: ServiceInfo = enabledService.resolveInfo.serviceInfo
+            if (enabledServiceInfo.packageName.equals(context.packageName) && enabledServiceInfo.name.equals(
+                    service.name
+                )
+            ) return true
+        }
+
+        return false
+    }
+
+    private fun promptEnableAccessibility() {
+        AlertDialog.Builder(this@MainActivity).apply {
+            setTitle("Confirmation")
+            setMessage("To lock with double tap, enable YAM Launcher in accessibility settings.")
+            setPositiveButton("Yes") { _, _ ->
+                // Perform action on confirmation
+                val intent = Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS)
+                intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK
+                startActivity(intent)
+            }
+            setNegativeButton("Cancel") { _, _ ->
+
+            }
+
+        }.create().show()
+    }
+
     private fun getSwipeInfo(direction: String): Pair<LauncherActivityInfo?, Int?> {
         val app = preferences.getString("${direction}SwipeApp", "")?.split("§splitter§")
 

app/src/main/java/eu/ottop/yamlauncher/ScreenLockService.kt

@@ -0,0 +1,28 @@
+package eu.ottop.yamlauncher
+
+import android.accessibilityservice.AccessibilityService
+import android.content.Intent
+import android.view.accessibility.AccessibilityEvent
+
+class ScreenLockService : AccessibilityService() {
+
+    override fun onAccessibilityEvent(event: AccessibilityEvent?) {
+        // Handle accessibility events if needed
+    }
+
+    override fun onInterrupt() {
+        // Handle interrupt
+    }
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        if (intent != null && intent.action == "LOCK_SCREEN") {
+            performLockScreen()
+        }
+        stopSelf()
+        return super.onStartCommand(intent, flags, startId)
+    }
+
+    private fun performLockScreen() {
+        performGlobalAction(GLOBAL_ACTION_LOCK_SCREEN)
+    }
+}

app/src/main/res/values/strings.xml

@@ -75,5 +75,6 @@
 
     <string name="weather_link"><![CDATA[Weather data by <a href="https://open-meteo.com/">Open-Meteo.com</a><br>(<a href="https://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>)]]></string>
     <string name="location_link"><![CDATA[Location data by <a href="https://open-meteo.com/">Open-Meteo.com</a> (<a href="https://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>)]]></string>
+    <string name="accessibility_service_description">Idk this is my service</string>
 
 </resources>

app/src/main/res/xml/root_preferences.xml

@@ -173,6 +173,12 @@
             app:key="rightSwipeApp"
             app:selectable="true"
             app:title="Right Swipe App" />
+        <SwitchPreference
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:defaultValue="false"
+            android:title="Double Tap to Lock Screen"
+            app:key="doubleTap" />
         <SwitchPreference
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"

app/src/main/res/xml/screenlock_service_config.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<accessibility-service
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:accessibilityEventTypes="typeViewClicked"
+    android:accessibilityFeedbackType="feedbackGeneric"
+    android:notificationTimeout="100"
+    android:canRetrieveWindowContent="true"
+    android:description="@string/accessibility_service_description" />