Oreo 8.0 中的推送通知问题

Question

将应用程序更新到 8.1 后，通知没有显示，我修复了它。 现在，待处理的意图没有按预期工作。

收到通知后，我无法导航到该应用程序，如果它在后台，如果它关闭，它不会启动。

private void sendNotify(String messageBody) {
    Intent intent = new Intent();
    intent.setAction(Constants.NOTIFY);
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

    int uniqueId = (int) System.currentTimeMillis();

    Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

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

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        // Creates the PendingIntent
        PendingIntent notifyPendingIntent =
                PendingIntent.getActivity(
                        this,
                        0,
                        intent,
                        PendingIntent.FLAG_UPDATE_CURRENT
                );

        String channelID = "com.myapp.ind.push.ServiceListener";// The id of the channel.
        int importance = NotificationManager.IMPORTANCE_HIGH;
        NotificationChannel mChannel = new NotificationChannel(channelID, "MyApp", importance);
        // Create a notification and set the notification channel.
        Notification notification = getNotificationBuilder(messageBody, notifyPendingIntent, defaultSoundUri)
                .setChannelId(channelID)
                .build();

        if (notificationManager != null) {
            notificationManager.createNotificationChannel(mChannel);
            notificationManager.notify(uniqueId, notification);
        }
    } else if (notificationManager != null) {
        PendingIntent pendingIntent = PendingIntent.getBroadcast(this,
            uniqueId /* Request code */,
            intent,
            PendingIntent.FLAG_ONE_SHOT);
        NotificationCompat.Builder notificationBuilder = getNotificationBuilder(messageBody, pendingIntent, defaultSoundUri);
        notificationManager.notify(uniqueId /* ID of notification */,
                notificationBuilder.build());
    }
}

private NotificationCompat.Builder getNotificationBuilder(String messageBody, PendingIntent pendingIntent, Uri defaultSoundUri) {
    return new NotificationCompat.Builder(this)
            .setSmallIcon(android.R.drawable.ic_dialog_info)
            .setContentTitle(getString(R.string.notification_title))
            .setContentText(messageBody)
            .setStyle(new NotificationCompat.BigTextStyle().bigText(messageBody))
            .setAutoCancel(true)
            .setSound(defaultSoundUri)
            .setContentIntent(pendingIntent);
}

编辑：

单击通知后，它可以正常工作到 6.0。 更新到 8.0 后，它在 Google Pixel 设备中不起作用。 它不会打开应用程序或将应用程序置于前台。

Answer 1

创建一个 Receiver 类，如下所示。 并注册清单文件。

public class Receiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction() != null
            && intent.getAction().equals("My Call")) {
            Intent startIntent = context.getPackageManager().getLaunchIntentForPackage(context.getPackageName());
            context.startActivity(startIntent);
        }
    }
}

收到通知后来自 Notification 类的以下代码。

private void sendNotification() {
    Intent intent = new Intent(this, Receiver.class);
    intent.setAction("My Call");
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

    int uniqueId = (int) System.currentTimeMillis();
    PendingIntent pendingIntent = PendingIntent.getBroadcast(this,
            uniqueId /* Request code */,
            intent,
            PendingIntent.FLAG_ONE_SHOT);

    Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
    NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && notificationManager != null) {
        String channelID = "Your Channel ID";// The id of the channel.
        int importance = NotificationManager.IMPORTANCE_HIGH;
        NotificationChannel mChannel = new NotificationChannel(channelID, "My_Name", importance);
        // Create a notification and set the notification channel.
        Notification notification = getNotificationBuilder(messageBody, pendingIntent, defaultSoundUri)
                .setChannelId(channelID)
                .build();

        notificationManager.createNotificationChannel(mChannel);
        notificationManager.notify(uniqueId, notification);
    } else if (notificationManager != null) {
        NotificationCompat.Builder notificationBuilder = getNotificationBuilder();
        notificationManager.notify(uniqueId /* ID of notification */,
                notificationBuilder.build());
    }
}

private NotificationCompat.Builder getNotificationBuilder() {
    return new NotificationCompat.Builder(this)
            .setSmallIcon(image)
            .setContentTitle(title)
            .setContentText(message)
            .setStyle(new NotificationCompat.BigTextStyle().bigText(messageBody))
            .setAutoCancel(true)
            .setSound(defaultSoundUri)
            .setContentIntent(pendingIntent);
}

现在我在所有设备中都收到了通知。 以前我也收到过但由于 Oreo 设备中的 Channel 实现而未显示在状态栏中。 现在工作完美。