小编loo*_*139的帖子

我一直在关注Flutter Workmanager iOS 设置，在页面底部，他们展示了如何将插件与 Workmanager 一起使用来执行后台任务。

我的 AppDelegate.swift 中有这个确切的代码：

class AppDelegate: FlutterAppDelegate {
    /// Registers all pubspec-referenced Flutter plugins in the given registry.  
    static func registerPlugins(with registry: FlutterPluginRegistry) {
            GeneratedPluginRegistrant.register(with: registry)
    }
    
    override func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        
        // ... Initialization code
        
        AppDelegate.registerPlugins(with: self) // Register the app's plugins in the context of a normal run
        
        WorkmanagerPlugin.setPluginRegistrantCallback { registry in  
            // The following code will be called upon WorkmanagerPlugin's registration.
            // Note …