当通过fireBase收到推送通知时，IONIC2在android后台应用程序时增加徽章

Question

I have a Ionic3 app using firebase and cordova-plugin-badge. If the app is running in the foreground and I receive a push notification the badge number is increased.

import { Badge } from '@ionic-native/badge';
declare let FCMPlugin;

constructor(private badge: Badge) {
  this.platform.ready().then(() => {
    FCMPlugin.onNotification((data) => {
      this.badge.increase(1); // works when app is in foreground
      if (data.wasTapped) {
        //Notification was received on device tray and tapped by the user.
        this.handleNotificationsWhenInBackground(data);
      } else {
        //Notification was received in foreground. Maybe the user needs to be notified.
        this.handleNotificationsWhenInForeground(data);
      }
    },
    (msg) => {
    },
    function (err) {
    });
  });
}

I receive the push notification when the app is in the background but badge number is not incremented. If I click on the push notification received on android while the app is in the background then badge number is incremented. So the code to increment the badge number is called only when the app is in foreground.

My problem is: how to increment the badge number while the app is in the background and I receive a push notification.

Answer 1

唯一的方法是在你的通知负载中设置一个属性，就像你在 Android 上一样，你必须设置"click_action":"FCM_PLUGIN_ACTIVITY"属性以在用户点击通知托盘后启用一些操作。