Question

我目前正在使用Firebase消息处理Flutter通知，但是我没有收到任何通知。我使用curl通过服务器发送了通知，但是我可以在本机android应用（Android Studio）中使它正常工作，但无法正常运行，我们将不胜感激。下面是我的代码。

颤动通知代码

class FirebaseNotifications {
FirebaseMessaging _firebaseMessaging;

void setUpFirebase() {
_firebaseMessaging = FirebaseMessaging();
firebaseCloudMessaging_Listeners();
}

void firebaseCloudMessaging_Listeners() {
if (Platform.isIOS) iOS_Permission();

_firebaseMessaging.getToken().then((token) {
  print(token);
});

_firebaseMessaging.configure(
  onMessage: (Map<String, dynamic> message) async {
    print('on message $message');
  },
  onResume: (Map<String, dynamic> message) async {
    print('on resume $message');
  },
  onLaunch: (Map<String, dynamic> message) async {
    print('on launch $message');
  },
);
}

void iOS_Permission() {
_firebaseMessaging.requestNotificationPermissions(
    IosNotificationSettings(sound: true, badge: true, alert: true));
_firebaseMessaging.onIosSettingsRegistered
    .listen((IosNotificationSettings settings) {
  print("Settings registered: $settings");
});
}
}

Android Studio代码

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {

    Map<String, String> params = remoteMessage.getData();

    JSONObject object = new JSONObject(params);

    showNotification(remoteMessage);
}

private void showNotification(RemoteMessage remoteMessage) { 
Map data = remoteMessage.getData();

String mesg = "New Notification";

Intent intent;
    PendingIntent pendingIntent;
    NotificationCompat.Builder builder;

    Intent i = new Intent(this,MainActivity.class);
    i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

    NotificationManager mNotificationManager =
            (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        int importance = NotificationManager.IMPORTANCE_HIGH;
        NotificationChannel mChannel = new NotificationChannel(id, name, importance);
        mChannel.setDescription(description);
        mChannel.enableLights(true);
        mChannel.setLightColor(Color.GREEN);
        mChannel.enableVibration(true);
        mChannel.setVibrationPattern(new long[]{0, 250, 250, 250});
        mNotificationManager.createNotificationChannel(mChannel);

        builder = new NotificationCompat.Builder(this, id);

        intent = new Intent(this, MainActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);

        builder.setContentTitle(data.get("title").toString())  // required
                //.setStyle(new 
 NotificationCompat.BigTextStyle().bigText(remoteMessage.getNotification()
.getBod 
y().toString()))
                .setStyle(new 
NotificationCompat.BigTextStyle().bigText(mesg)) //custom data
                .setSmallIcon(R.drawable.ic_stat_notification_icon4) // 
required

                .setContentText(mesg) // custom data
                .setWhen(System.currentTimeMillis())
                .setDefaults(Notification.DEFAULT_ALL)

.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
                .setAutoCancel(true)
                .setContentIntent(pendingIntent)
                .setVibrate(new long[]{0, 250, 250, 250});
    }
}

服务器端代码

function sendtoUser($sendingTarget, $acc_name, $type_message, 
$type_of_transaction, $check_amount)
{

#API access key from Google API's Console
$API_ACCESS_KEY = "adazxc";
$registrationIds = $sendingTarget;
#prep the bundle

$fields = array(
    'to'        => $registrationIds,
    'data' => array(
        'title' => 'my title',
        'keyValue' => true,
        'receiverName' => $acc_name,
        'transType' => $type_of_transaction,
        'totalAmount' => $check_amount
    ),
);

$headers = array(
    'Authorization: key=' . $API_ACCESS_KEY,
    'Content-Type: application/json'
);
#Send Reponse To FireBase Server
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://fcm.googleapis.com/fcm/send');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
$result = curl_exec($ch);
curl_close($ch);
}

编辑

我以某种方式可以收到通知，但是我注意到状态栏没有收到通知，但状态栏已打印在控制台中，但是，当我关闭应用程序时，我可以收到通知。那么在两种情况下我如何都能收到通知？

Answer 1

对于它的价值，我有一个问题，就是今天昨天工作正常时收到onMessage通知（没有尝试onResume或onLaunch）。功能日志和令牌中没有错误都相同。

尝试重新启动设备-如果以前的功能正常工作，这似乎是修复此问题的最一致的方法。

另外，如果刚开始时消息传递似乎很慢，则可能是由于一段时间不使用这些功能时冷启动所致（有关更多信息，请参阅此SO question）。

Answer 2

您可能会错过针对android（以及ios，如果需要）的手动配置，请参考以下链接

https://csvlint.io

Answer 3

进行一些检查（版本号可能会更改）：

将google-services.json（从Firebase控制台下载）添加到 android / app /

在android / build.gradle中：

将google（）添加到存储库中
将类路径'com.google.gms：google-services：4.2.0'添加到依赖项中

在android / app / build.gradle中：

将实现“ com.google.firebase：firebase-messaging：18.0.0”添加到依赖项
最后添加应用插件：“ com.google.gms.google-services”
将applicationId与package_name相同 google-services.jon

Answer 4

data标签仅用于将更多信息传输到应用程序，例如它必须重定向，图像等。您必须添加notification标签以在状态栏上显示通知。

您似乎尚未添加通知内容，请参考下面的示例消息并进行配置，它将起作用

{
   "notification": {
      "body": "body",
      "title": "title"
   },
   "priority": "high",
   "data": {
      "click_action": "FLUTTER_NOTIFICATION_CLICK",
      "id": "1",
      "status": "done",
      "image": "https://ibin.co/2t1lLdpfS06F.png",
   },
   "to": <fcm_token>
}

Flutter Firebase消息未收到通知

4 个答案: