android - FCM 不工作推送通知声音 android

Question

我正在尝试使用 Firebase 控制台向我的手机发送推送通知，但是当应用程序最小化时，通知的声音和标题不起作用，当应用程序在前台工作时正常，行为通知不同的原因是什么？

MyFirebaseMessagingService.java

private void sendNotification(String messageBody) {
    Intent intent = new Intent(this, DashboardActivity.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_info_black_24dp)
            .setContentTitle("FCM Message")
            .setContentText(messageBody)
            .setAutoCancel(true)
            .setSound(defaultSoundUri)
            .setContentIntent(pendingIntent);

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

    notificationBuilder.setVibrate(new long[] { 1000, 1000, 1000, 1000, 1000 });

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

AndroidManifest.xml

    <!-- [START firebase_service] -->
    <service
        android:name=".MyFirebaseMessagingService">
        <intent-filter>
            <action android:name="com.google.firebase.MESSAGING_EVENT"/>
        </intent-filter>
    </service>
    <!-- [END firebase_service] -->

<uses-permission android:name="android.permission.INTERNET" />

<!-- To auto-complete the email text field in the login form with the user's emails -->
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />

Answer 1

我认为您使用的通知消息类型仅在应用程序位于前台时显示通知。当应用程序处于后台时，您需要使用数据消息类型来获取通知(以及声音、振动等)。查看我的回答here .