Gamebar: Implement "take screenshot" in gesture quick actions menu

Signed-off-by: kenway214 <kenway214@outlook.com>

res/values/arrays.xml

@@ -83,11 +83,13 @@
         <item>Toggle Full/Minimal Format</item>
         <item>Start/Stop Log Capture</item>
         <item>Open GameBar Settings</item>
+        <item>Take Screenshot</item>
     </string-array>
     <string-array name="gesture_function_values">
         <item>toggle_format</item>
         <item>capture_logs</item>
         <item>open_settings</item>
+        <item>take_screenshot</item>
     </string-array>
 
     <!-- Long press timeouts -->

src/com/android/gamebar/GameBar.kt

@@ -202,6 +202,9 @@ class GameBar private constructor(context: Context) {
             "open_settings" -> {
                 openOverlaySettings()
             }
+            "take_screenshot" -> {
+                takeScreenshot()
+            }
         }
     }
 
@@ -1152,6 +1155,16 @@ class GameBar private constructor(context: Context) {
         }
     }
 
+    private fun takeScreenshot() {
+        try {
+            // Trigger system screenshot using shell command
+            Runtime.getRuntime().exec("input keyevent KEYCODE_SYSRQ")
+            Toast.makeText(context, "Screenshot taken", Toast.LENGTH_SHORT).show()
+        } catch (e: Exception) {
+            Toast.makeText(context, "Failed to take screenshot", Toast.LENGTH_SHORT).show()
+        }
+    }
+
     private fun openOverlaySettings() {
         try {
             val intent = Intent(context, GameBarSettingsActivity::class.java)

src/com/android/gamebar/GameBarFragment.kt

@@ -278,6 +278,15 @@ class GameBarFragment : SettingsBasePreferenceFragment() {
             true
         }
         
+        // Single tap function change
+        singleTapFunctionPref?.setOnPreferenceChangeListener { _, _ ->
+            // Reload preferences to apply new function
+            android.os.Handler(android.os.Looper.getMainLooper()).post {
+                gameBar?.applyPreferences()
+            }
+            true
+        }
+        
         // Double tap enable/disable and visibility
         doubleTapEnablePref?.setOnPreferenceChangeListener { _, newValue ->
             val enabled = newValue as Boolean
@@ -285,6 +294,15 @@ class GameBarFragment : SettingsBasePreferenceFragment() {
             true
         }
         
+        // Double tap function change
+        doubleTapFunctionPref?.setOnPreferenceChangeListener { _, _ ->
+            // Reload preferences to apply new function
+            android.os.Handler(android.os.Looper.getMainLooper()).post {
+                gameBar?.applyPreferences()
+            }
+            true
+        }
+        
         // Long press enable/disable and visibility
         longPressEnablePref?.setOnPreferenceChangeListener { _, newValue ->
             val enabled = newValue as Boolean
@@ -293,6 +311,15 @@ class GameBarFragment : SettingsBasePreferenceFragment() {
             true
         }
         
+        // Long press function change
+        longPressFunctionPref?.setOnPreferenceChangeListener { _, _ ->
+            // Reload preferences to apply new function
+            android.os.Handler(android.os.Looper.getMainLooper()).post {
+                gameBar?.applyPreferences()
+            }
+            true
+        }
+        
         // Long press timeout
         longPressTimeoutPref?.setOnPreferenceChangeListener { _, newValue ->
             if (newValue is String) {