Question

我创建了一个推送通知演示程序，该演示程序运行良好。但是从设置启用通知警报时会出现问题。

我已经从firebase云消息传递控制台发送了一条通知，并且按预期收到了该通知，现在当我长按该通知并将其禁用时，通知仍不会出现预期的行为，请参见（左图）。但是，当我尝试从设置中启用此杂项通知时，请参见（图像右），然后再次返回并尝试启用它，则不允许我启用它。它本身总是被禁用。所以我应该怎么做才能再次启用它。

此外，当我启用它时，标记区域选项仍然被禁用，并且在再次尝试启用它之后，不允许我启用它。它本身总是被禁用。

下面是我的推送通知代码

MainActivity.java

public class MainActivity extends AppCompatActivity {
    private String TAG = "MainActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        FirebaseInstanceId.getInstance().getInstanceId()
                .addOnCompleteListener(new OnCompleteListener<InstanceIdResult>() {
                    @Override
                    public void onComplete(@NonNull Task<InstanceIdResult> task) {
                        if (!task.isSuccessful()) {
                            Log.w(TAG, "getInstanceId failed", task.getException());
                            return;
                        }

                        // Get new Instance ID token
                        String token = task.getResult().getToken();

                        // Log and toast
                        Log.d(TAG, "Token : " + token);
                        Toast.makeText(MainActivity.this, "token", Toast.LENGTH_SHORT).show();
                    }
                });
    }
}

MyFirebaseMessagingService.java

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    private static final String TAG = "MyFirebaseMsgService";

    @Override
    public void onNewToken(String token) {
        Log.d(TAG, "Refreshed token: " + token);

        // If you want to send messages to this application instance or
        // manage this apps subscriptions on the server side, send the
        // Instance ID token to your app server.
        sendRegistrationToServer(token);
    }

    private void sendRegistrationToServer(String token) {
        // TODO: Implement this method to send token to your app server.
    }

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);
        sendNotification(remoteMessage.getNotification().getBody());
        Log.e("onMessageReceived","notification : "+remoteMessage.getNotification().getBody());
    }

    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);

        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.mipmap.ic_launcher)
                        .setContentTitle(getString(R.string.app_name))
                        .setContentText(messageBody)
                        .setAutoCancel(true)
                        .setSound(defaultSoundUri)
                        .setContentIntent(pendingIntent);

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

        // Since android Oreo notification channel is needed.
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationChannel channel = new NotificationChannel(channelId,
                    "Channel human readable title",
                    NotificationManager.IMPORTANCE_DEFAULT);
            notificationManager.createNotificationChannel(channel);
        }

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

Answer 1

之所以出现此问题，是因为您的通知属于默认的其他渠道，我建议您创建自己的自定义类别，并可以使用振动，哔哔声和其他各种方式自定义该渠道。查看此facebook通知频道；

How to create custom channels

请注意，如果您要创建自定义渠道，则应先创建渠道，然后再使用它。

无法通过设置启用其他通知

1 个答案: