1

将应用程序更新到 8.1 后，通知未显示，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，如果应用程序在后台，我无法导航到应用程序，如果它已关闭，则无法启动。

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：

单击通知时，它工作正常，直到 6.0。更新到 8.0 后，它无法在 Google Pixel 设备中运行。它没有打开应用程序或将应用程序带到前台。

4

1 回答 1

4

创建一个接收器类，如下所示。并注册即清单文件。

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。以前我也收到了，但由于 Oreo 设备中的 Channel 实现而没有显示在状态栏中。现在工作完美。

于 2018-02-15T16:36:50.513 回答