remotenotificationReceivedHandler未设置，显示正常的信号通知颤动

Question

处理发作的背景通知。当应用在后台时，我想在控制台中打印我的通知。对于前景通知，我使用了setNotificationwillShowinForegroundHandler。现在用于处理背景通知悬挂。

Answer 1

当该应用终止时，您无法打印任何内容，但是如果该应用程序在后台运行，则可以打印通知或通知其他数据。

在Android＆gt;中添加notificationserviceextension.jave文件app＆gt; src＆gt; Main＆gt; Kotlin＆gt;在MainAttivity旁边

添加以下代码：

package your bundle_id;

import android.content.Context;
import android.util.Log;
import org.json.JSONObject;

import com.onesignal.OSNotification;
import com.onesignal.OSMutableNotification;
import com.onesignal.OSNotificationReceivedEvent;
import com.onesignal.OneSignal.OSRemoteNotificationReceivedHandler;



@SuppressWarnings("unused")
public class NotificationServiceExtension implements 
OSRemoteNotificationReceivedHandler {

@Override
public void remoteNotificationReceived(Context context, OSNotificationReceivedEvent notificationReceivedEvent) {
    OSNotification notification = notificationReceivedEvent.getNotification();
    Log.i("OneSignalExample", "Notification Data: " + notification);

    // Example of modifying the notification's accent color
    OSMutableNotification mutableNotification = notification.mutableCopy();
    mutableNotification.setExtender(builder -> {
        // Sets the accent color to Green on Android 5+ devices.

        //Force remove push from Notification Center after 30 seconds
        builder.setTimeoutAfter(30000);
        return builder;
    });
    JSONObject data = notification.getAdditionalData();
    //log.i will print data in body of notification
    Log.i("OneSignalExample", "Received Notification Data: " + data);
    
    // If complete isn't call within a time period of 25 seconds, 
    OneSignal internal logic will show the original notification
    // To omit displaying a notification, pass `null` to complete()
   


    notificationReceivedEvent.complete(mutableNotification);
   }
}

不要忘记在清单Android中的应用程序标签下方添加这些标签

<meta-data android:name="com.onesignal.NotificationServiceExtension"
               android:value="your_bundle_id.NotificationServiceExtension" />