Firebase通知不适用于Android O
问题描述:
我正在使用Android O模拟器并希望从Firebase控制台获得通知。它在除Android O之外的每个设备上都正常工作。我在日志中收到此错误。Firebase通知不适用于Android O
W/Notification: Use of stream types is deprecated for operations other than volume control
W/Notification: See the documentation of setSound() for what to use instead with android.media.AudioAttributes to qualify your playback use case
我知道我必须指定Channel id。 所以我至今
做的AndroidManifest.xml
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:largeHeap="true"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<meta-data
android:name="com.google.firebase.messaging.default_notification_icon"
android:resource="@drawable/attach" />
<meta-data
android:name="com.google.firebase.messaging.default_notification_color"
android:resource="@color/colorAccent" />
<meta-data
android:name="com.google.firebase.messaging.default_notification_channel_id"
android:value="my_notification_channel" />
<service android:name=".Helper.FirebaseIDService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>
<service android:name=".Helper.MyFirebaseMessagingService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
<my all activities...>
我还指定通道ID在FirebaseMessagingService这样
public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = "FCM Service";
private static final int NOTIFICATION_ID = 1;
private static final String NOTIFICATION_CHANNEL_ID = "my_notification_channel";
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
Log.d(TAG, "From: " + remoteMessage.getFrom());
Log.d(TAG, "Notification Message Body: " + remoteMessage.getNotification().getBody());
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "My Notifications", NotificationManager.IMPORTANCE_DEFAULT);
// Configure the notification channel.
notificationChannel.setDescription("Channel description");
notificationChannel.enableLights(true);
notificationChannel.setLightColor(Color.RED);
notificationChannel.setVibrationPattern(new long[]{0, 1000, 500, 1000});
notificationChannel.enableVibration(true);
notificationManager.createNotificationChannel(notificationChannel);
}
NotificationCompat.Builder mBuilder;
mBuilder = new NotificationCompat.Builder(getApplicationContext())
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle("Title")
.setContentText(remoteMessage.getNotification().getBody())
.setOngoing(true)
.setChannelId(NOTIFICATION_CHANNEL_ID);
notificationManager.notify(NOTIFICATION_ID, mBuilder.build());
}
}
所以做这一切之后。我仍然在日志中收到该错误消息,无法接收来自控制台的通知。任何帮助都是可观的。
答
当FCM消息不包含数据有效内容,仅包含通知有效内容,并且您的应用位于后台时,Firebase将直接生成通知,并且不会调用onMessageReceived()
。这在the documentation中有解释。
对于Android O,必须创建通知通道。您正在清单中正确定义默认通知通道,但通道是在onMessageReceived()
代码中创建的,该代码在应用程序位于后台时不会执行。
移动创建通道的代码,您可以确定它会在收到通知之前执行该通道。
另外,如Firebase Release Notes所示,在版本10.2.6中添加了对通知通道的支持。您必须至少使用该版本进行构建。
背后的任何原因downvoting? –
你是否看到'From:'日志消息,指示收到消息? –
当应用程序在前台,然后我可以看到。但在应用程序转到后台后显示错误。@ BobSnyder –