init

macos/Runner/AppDelegate.swift

@@ -0,0 +1,23 @@
+import Cocoa
+import FlutterMacOS
+
+@main
+class AppDelegate: FlutterAppDelegate {
+  override func applicationDidFinishLaunching(_ notification: Notification) {
+    let bundleId = Bundle.main.bundleIdentifier ?? "mesh_drop_flutter"
+    let running = NSRunningApplication.runningApplications(withBundleIdentifier: bundleId)
+    if running.count > 1 {
+      NSApp.terminate(nil)
+      return
+    }
+    super.applicationDidFinishLaunching(notification)
+  }
+
+  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+    return true
+  }
+
+  override func applicationSupportsSecureRestorableState(_ app: NSApplication) -> Bool {
+    return true
+  }
+}