implement real gateway path.

apps/android/app/src/main/kotlin/org/vpnshare/app/MainActivity.kt

@@ -10,6 +10,7 @@ import org.vpnshare.gateway.VpnShareGatewayService
 class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+        maybeStartShare(intent)
 
         setContent {
             ShareScreen(
@@ -28,4 +29,22 @@ class MainActivity : ComponentActivity() {
             )
         }
     }
+
+    override fun onNewIntent(intent: Intent) {
+        super.onNewIntent(intent)
+        maybeStartShare(intent)
+    }
+
+    private fun maybeStartShare(intent: Intent?) {
+        if (intent?.action == ACTION_START_FROM_DESKTOP) {
+            startForegroundService(
+                Intent(this, VpnShareGatewayService::class.java)
+                    .setAction(VpnShareGatewayService.ACTION_START)
+            )
+        }
+    }
+
+    companion object {
+        const val ACTION_START_FROM_DESKTOP = "org.vpnshare.action.START_FROM_DESKTOP"
+    }
 }