Flutter Firebase消息传递-当应用程序打开时不显示推送通知

Question

我是flutter的新手，我只是试图接收firebase推送通知到我的flutter应用程序。当应用程序关闭时，在后台接收推送通知。但是当应用程序打开时，推送通知正在接收，但它不显示警报通知（如果它打开了，我想在我的应用程序中显示推送通知的标题和正文作为警报）。这是我的代码。

_fcm.configure(
      onMessage: (Map<String, dynamic> message) async {
        showDialog(
          context: context,
          builder: (context) => AlertDialog(
            content: ListTile(
              title: Text(message['notification']['title']),
              subtitle: Text(message['notification']['body']),
            ),
            actions: <Widget>[
              FlatButton(
                child: Text('Ok'),
                onPressed: () => Navigator.of(context).pop(),
              ),
            ],
          ),
        );
        print("onMessage: $message");
      },
      onLaunch: (Map<String, dynamic> message) async {
        print("onLaunch: $message");
        
      },
      onResume: (Map<String, dynamic> message) async {
        print("onResume: $message");
      },
    );

谁能帮我做这个吗？

Answer 1

最后，我能够通过使用overlay_support包来管理我的问题

我参考了以下问题链接：

Flutter-Firebase消息快捷键未显示

return OverlaySupport(
            child: MaterialApp(....
               
          ));

然后将showoverlaynotification添加到我的_fcm.configure-->onmessage:

_fcm.configure(
      onMessage: (Map<String, dynamic> message) async {
        print("onMessage: $message");
        showOverlayNotification((context) {
          return Card(
            margin: const EdgeInsets.symmetric(horizontal: 4),
            child: SafeArea(
              child: ListTile(
                leading: SizedBox.fromSize(
                    size: const Size(40, 40),
                    child: ClipOval(
                        child: Container(
                      color: Colors.black,
                    ))),
                title: Text(message['notification']['title']),
                subtitle: Text(message['notification']['body']),
                trailing: IconButton(
                    icon: Icon(Icons.close),
                    onPressed: () {
                      OverlaySupportEntry.of(context).dismiss();
                    }),
              ),
            ),
          );
        }, duration: Duration(milliseconds: 4000));

        print(message['notification']['title']);
      },
      onLaunch: (Map<String, dynamic> message) async {
        print("onLaunch: $message");
      },
      onResume: (Map<String, dynamic> message) async {
        print("onResume: $message");
      },
    );