Firebase Messaging 无法发送后台消息 Flutter

Question

我的 index.ts 中有以下代码

const payload: admin.messaging.MessagingPayload = {
      notification: {
        title: 'New Order!',
        body: you sold a ${order.day} for ${order.time},
      },
    }; 
    return fcm.sendToDevice(tokens, payload);

这在我的 Flutter 中：

 messaging.configure(
      onMessage: (Map<String, dynamic> message) async {
        print("onMessage: $message");
      },
      onLaunch: (Map<String, dynamic> message) async {
        print("onLaunch: $message");
      },
      onResume: (Map<String, dynamic> message) async {
        print("onResume: $message");
      },
      onBackgroundMessage: myBackgroundMessageHandler
    );
  }
  static Future<dynamic> myBackgroundMessageHandler(Map<String, dynamic> message) {
    var data = message['data'] ?? message;
    print(data);
    // Or do other work.
  }

虽然 onMessage 部分运行良好，但 onLaunch 和 onResume 不起作用。 Netierh 负责 onBackgroundMessage。

Answer 1

您可以使用 if 方法和 onBackgroundMessage 包 https://pub.dev/packages/flutter_local_notifications

您正在检查数据而不是通知

flutter_local_notifications