无论如何，我可以阻止在客户端显示推送通知吗？

Question

I'm using UrbanAirship for push notifications. Everything is working fine, but there are certain scenarios where I wouldn't like to display the push notification coming from urban. Do I have to handle this on the server side or can I handle it on the client side?

If possible, how would I handle this on the client side? I've tried canceling the notification, and that works, but it still displays the rollover message in the status bar.

Answer 1

You need to override Airship's notification factory for this:

package your.package;

import android.app.Notification;
import android.content.Context;
import android.support.annotation.NonNull;

import com.urbanairship.push.PushMessage;
import com.urbanairship.push.notifications.DefaultNotificationFactory;

public class PushNotificationFactory extends DefaultNotificationFactory {

    public PushNotificationFactory(Context context) {
        super(context);
    }

    public Notification createNotification(@NonNull PushMessage message, int notificationId) {
        boolean shouldWeShowNotification = false; // your condition goes here
        if (shouldWeShowNotification) {
            return super.createNotification(message, notificationId);
        } else {
            return null;
        }
    }

}

and when taking off:

UAirship.takeOff(this, new UAirship.OnReadyCallback() {

    @Override
    public void onAirshipReady(UAirship airship) {
        NotificationFactory notificationFactory = new PushNotificationFactory(getApplicationContext());
        airship.getPushManager().setNotificationFactory(notificationFactory);
    }

});

Answer 2

You need to create a BroadcastReceiver in your app to intercept the push. You can then choose to display a custom notification or not.

Check out the setup docs http://docs.urbanairship.com/build/android_features.html#set-up

Answer 3

If you're using Kotlin:

class PushNotificationFactory(context: Context) : NotificationFactory(context) {

    override fun createNotification(message: PushMessage, notificationId: Int): Notification? {
        val notificationWillBeShowed = false // your condition goes here
        return if (notificationWillBeShowed) {
            // Show notification
            super.createNotification(message, notificationId)
        } else {
            // Prevent notification from showing
            null
        }
    }
}


class UrbanAirshipAutopilot : Autopilot()  {

    @RequiresApi(Build.VERSION_CODES.O)
    override fun onAirshipReady(airship: UAirship) {
        airship.pushManager.userNotificationsEnabled = true
        val context = UAirship.getApplicationContext()
        val notificationFactory = PushNotificationFactory(context)
        airship.pushManager.notificationFactory = notificationFactory
        if (Build.VERSION.SDK_INT >= 26) {
            val notificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
            val defaultChannelId = context.getString(R.string.notification_channel_id_default)
            val defaultChannelName = context.getString(R.string.notification_channel_name_default)
            val channel = NotificationChannel(defaultChannelId, defaultChannelName, NotificationManager.IMPORTANCE_DEFAULT)
            notificationManager.createNotificationChannel(channel)
        }
    }

    override fun createAirshipConfigOptions(context: Context): AirshipConfigOptions? {
        val defaultChannelId = context.getString(R.string.notification_channel_id_default)
        return AirshipConfigOptions.Builder()
                .setDevelopmentAppKey(BuildConfig.URBAN_AIRSHIP_APP_KEY_DEVELOPMENT)
                .setDevelopmentAppSecret(BuildConfig.URBAN_AIRSHIP_APP_SECRET_DEVELOPMENT)
                .setProductionAppKey(BuildConfig.URBAN_AIRSHIP_APP_KEY_PRODUCTION)
                .setProductionAppSecret(BuildConfig.URBAN_AIRSHIP_APP_SECRET_PRODUCTION)
                .setInProduction(!BuildConfig.DEBUG)
                .setGcmSender(BuildConfig.CLOUD_MESSAGING_SENDER_ID)     // FCM/GCM sender ID
//                .setNotificationIcon(R.drawable.ic_notification)
//                .setNotificationAccentColor(ContextCompat(getContext(), R.color.accent))
                .setNotificationChannel(defaultChannelId)
                .build()
    }
}