当我从Firebase发送推送时，如果应用程序处于后台或已关闭，我会收到通知，但是当应用程序打开时不...
调试我发现它在MyMessagingService中特别是在onMessageReceived停止，所以我猜我的问题是关于生成通知（或者可能是与通知一起的意图）。
我已经实现了这项服务：
public class MyMessagingService extends FirebaseMessagingService {
private static final String TAG = "MyMessagingService";
@Override
public void onMessageReceived(RemoteMessage remoteMessage)
{
Log.d(TAG, "From: " + remoteMessage.getFrom());
if(remoteMessage!=null)
{
String id = null;
String title = null;
String message = null;
String launchPage = null;
if(remoteMessage.getNotification()!=null)
{
if(remoteMessage.getNotification().getTitle()!=null)
{
title = remoteMessage.getNotification().getTitle();
}
if(remoteMessage.getNotification().getBody()!=null)
{
message = remoteMessage.getNotification().getBody();
}
}
if(remoteMessage.getMessageId()!=null)
{
id = remoteMessage.getMessageId();
}
Log.e(TAG, "id: " + id);
Log.e(TAG, Consts.TITLE + title);
Log.e(TAG, Consts.MESSAGE + ": " + message);
// Check if message contains a data payload.
if (remoteMessage.getData()!=null && remoteMessage.getData().size() > 0)
{
Log.d(TAG, "Message data payload: " + remoteMessage.getData());
if(remoteMessage.getData().containsKey(Consts.LAUNCH_PAGE))
{
launchPage = remoteMessage.getData().get(Consts.LAUNCH_PAGE);
}
Log.e(TAG, Consts.LAUNCH_PAGE + ": " + launchPage);
sendNotification(title, message, launchPage);
}
}
}
// [END receive_message]
/**
* Create and show a simple notification containing the received FCM message.
*
* @param messageBody FCM message body received.
*/
private void sendNotification(String title, String messageBody, String page)
{
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra(Consts.TITLE, title);
intent.putExtra(Consts.MESSAGE, messageBody);
if (launchPage != null)
{
intent.putExtra(Consts.LAUNCH_PAGE, launchPage);
}
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent, PendingIntent.FLAG_ONE_SHOT);
String channelId = getString(R.string.default_notification_channel_id);
Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.drawable.status)
.setContentTitle(title)
.setContentText(messageBody)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
} }
在我的清单中我有：
<!-- [START fcm_default_icon] -->
<meta-data
android:name="com.google.firebase.messaging.default_notification_icon"
android:resource="@drawable/status" />
<meta-data
android:name="com.google.firebase.messaging.default_notification_color"
android:resource="@color/accent" />
<!-- [END fcm_default_icon] -->
<!-- [START fcm_default_channel] -->
<meta-data
android:name="com.google.firebase.messaging.default_notification_channel_id"
android:value="@string/default_notification_channel_id"/>
<!-- [END fcm_default_channel] -->
<service
android:name=".controller.service.MyMessagingService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT"/>
</intent-filter>
</service>
<service
android:name=".controller.service.MyInstanceIDService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
</intent-filter>
</service>
有关如何在应用程序处于前台时生成通知的任何建议吗？
更改MyFirebaseMessagingService代码，
public class MyFirebaseMessagingService extends FirebaseMessagingService {
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
super.onMessageReceived(remoteMessage);
Log.d("msg", "onMessageReceived: " + remoteMessage.getData().get("message"));
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);
String channelId = "Default";
NotificationCompat.Builder builder = new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle(remoteMessage.getNotification().getTitle())
.setContentText(remoteMessage.getNotification().getBody()).setAutoCancel(true).setContentIntent(pendingIntent);;
NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = new NotificationChannel(channelId, "Default channel", NotificationManager.IMPORTANCE_DEFAULT);
manager.createNotificationChannel(channel);
}
manager.notify(0, builder.build());
}
}
检查 - How to handle the fire base notification when app is in foreground
我建议使用getData（）而不是getNotification（）。在getData（）中，无论应用程序是在前台/后台，都会收到并显示通知。以下是供进一步参考的文档：FCM
当应用程序处于后台时，如果邮件包含通知，则甚至不会调用您的服务。 Firebase服务客户端处理通知并显示它。这就是它工作的原因。
首先，在app为前台时调试它，并确保在FCM的通知中同时接收通知和数据。
如果它看起来不错，可能是时候处理超过时间限制的服务通知，尝试将onMessageReceived中的通知处理移动到后台线程。看到这里是一个例子http://www.zoftino.com/android-notification-data-messages-from-app-server-using-firebase-cloud-messaging
我终于解决了这个问题，这是我如何创建通知的问题，所以这是我的代码：
private void sendNotification(String title, String messageBody, String page)
{
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(getApplicationContext(), getString(R.string.default_notification_channel_id));
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra(Consts.TITLE, title);
intent.putExtra(Consts.MESSAGE, messageBody);
if (page != null)
{
intent.putExtra(Consts.LAUNCH_PAGE, page);
}
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
NotificationCompat.BigTextStyle bigText = new NotificationCompat.BigTextStyle();
bigText.bigText(title);
bigText.setBigContentTitle(messageBody);
mBuilder.setContentIntent(pendingIntent);
mBuilder.setSmallIcon(R.drawable.status);
mBuilder.setContentTitle(title);
mBuilder.setContentText(messageBody);
mBuilder.setPriority(Notification.PRIORITY_MAX);
mBuilder.setAutoCancel(true);
mBuilder.setStyle(bigText);
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
{
NotificationChannel channel = new NotificationChannel(getString(R.string.default_notification_channel_id), getString(R.string.default_notification_channel_name), NotificationManager.IMPORTANCE_DEFAULT);
mNotificationManager.createNotificationChannel(channel);
}
mNotificationManager.notify(0, mBuilder.build());
}
希望这可以帮助其他任何人。谢谢你的重播。