无法展开 Firebase 通知

Question

我已经使用 Firebase Auth 和 Messaging 制作了一个应用程序，我一直通过 Firebase 控制台向应用程序发送通知，问题是如果通知很大我就无法展开。我该怎么做？帮帮我

public class FirebaseNots extends FirebaseMessagingService {


private static final String TAG = "MyFirebaseMsgService";

/**
 * Called when message is received.
 *
 * @param remoteMessage Object representing the message received from Firebase Cloud Messaging.
 */
// [START receive_message]
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    // [START_EXCLUDE]
    // There are two types of messages data messages and notification messages. Data messages are handled
    // here in onMessageReceived whether the app is in the foreground or background. Data messages are the type
    // traditionally used with GCM. Notification messages are only received here in onMessageReceived when the app
    // is in the foreground. When the app is in the background an automatically generated notification is displayed.
    // When the user taps on the notification they are returned to the app. Messages containing both notification
    // and data payloads are treated as notification messages. The Firebase console always sends notification
    // messages. For more see: https://firebase.google.com/docs/cloud-messaging/concept-options
    // [END_EXCLUDE]

    // TODO(developer): Handle FCM messages here.
    // Not getting messages here? See why this may be: 
    Log.d(TAG, "From: " + remoteMessage.getFrom());

    // Check if message contains a data payload.
    if (remoteMessage.getData().size() > 0) {
        Log.d(TAG, "Message data payload: " + remoteMessage.getData());
    }

    // Check if message contains a notification payload.
    if (remoteMessage.getNotification() != null) {
        Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
    }

    // Also if you intend on generating your own notifications as a result of a received FCM
    // message, here is where that should be initiated. See sendNotification method below.
}
// [END receive_message]

/**
 * Create and show a simple notification containing the received FCM message.
 *
 * @param messageBody FCM message body received.
 */
private void sendNotification(String messageBody) {
    Intent intent = new Intent(this, MainActivity.class);
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
            PendingIntent.FLAG_ONE_SHOT);

    Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
            .setSmallIcon(R.drawable.ic)
            .setContentTitle("FCM Message")
            .setContentText(messageBody)
            .setAutoCancel(true)
            .setSound(defaultSoundUri)
            .setContentIntent(pendingIntent);

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

    notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
  }

Image Please Take A Look

谢谢

Answer 1

如果您希望通知可展开以显示多行，则需要在通知中添加 BigTextStyle：

notificationBuilder.setStyle(new NotificationCompat.BigTextStyle()
    .bigText(messageBody));

Answer 2

来自 Firebase 控制台的通知尚不支持 BigStyle 通知。这是一个已知问题，他们正在努力修复，作为一种解决方法，使用 REST API 使用数据消息发送通知，然后在收到消息时自己生成通知，就像@ianhanniballake 所建议的那样。

Answer 3

此行为已在即将发布的下一版 FCM 中修复。

关注下一个 android 版本的 https://firebase.google.com/support/releases 并更新您应用程序中的库版本 :)

无法展开 Firebase 通知

Can't Expand Firebase Notifications

android

android-notifications

firebase

firebase-cloud-messaging

firebase-notifications