ExampleApplication.java

package com.onesignal.example;

import android.app.Application;
import android.util.Log;

import com.onesignal.OSNotificationAction;
import com.onesignal.OSNotificationOpenResult;
import com.onesignal.OneSignal;

import org.json.JSONObject;

public class ExampleApplication extends Application {

   @Override
   public void onCreate() {
      super.onCreate();

      // Logging set to help debug issues, remove before releasing your app.
      OneSignal.setLogLevel(OneSignal.LOG_LEVEL.DEBUG, OneSignal.LOG_LEVEL.WARN);

      OneSignal.startInit(this)
          .setNotificationOpenedHandler(new ExampleNotificationOpenedHandler())
          .autoPromptLocation(true)
          .init();
   }


   private class ExampleNotificationOpenedHandler implements OneSignal.NotificationOpenedHandler {
      // This fires when a notification is opened by tapping on it.
      @Override
      public void notificationOpened(OSNotificationOpenResult result) {
         OSNotificationAction.ActionType actionType = result.action.type;
         JSONObject data = result.notification.payload.additionalData;
         String customKey;

         if (data != null) {
            customKey = data.optString("customkey", null);
            if (customKey != null)
               Log.i("OneSignalExample", "customkey set with value: " + customKey);
         }

         if (actionType == OSNotificationAction.ActionType.ActionTaken)
            Log.i("OneSignalExample", "Button pressed with id: " + result.action.actionID);

         // The following can be used to open an Activity of your choice.

         // Intent intent = new Intent(getApplication(), YourActivity.class);
         // intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT | Intent.FLAG_ACTIVITY_NEW_TASK);
         // startActivity(intent);

         // Add the following to your AndroidManifest.xml to prevent the launching of your main Activity
         //  if you are calling startActivity above.
         /* 
            <application ...>
              <meta-data android:name="com.onesignal.NotificationOpened.DEFAULT" android:value="DISABLE" />
            </application>
         */
      }
   }
}