bug: PushNotifications on Android, if the app is killed will not show

Bug Report

Capacitor Version

Latest Dependencies:

  @capacitor/cli: 2.4.0
  @capacitor/core: 2.4.0
  @capacitor/android: 2.4.0
  @capacitor/electron: 2.4.0
  @capacitor/ios: 2.4.0

Installed Dependencies:

  @capacitor/cli 2.4.0
  @capacitor/core 2.4.0
  @capacitor/android 2.4.0
  @capacitor/ios 2.4.0
  @capacitor/electron not installed

Platform(s)

• Android 10

Current Behavior

The push notifications (setup via tutorial) and send via firebase console do not work if the application is closed (not minimized) on the phone.

Expected Behavior

The sent push notifications should be in the system tray.

Code Reproduction

Other Technical Details

npm --version output: 6.12.1

node --version output: v12.13.1

pod --version output (iOS issues only): –

Additional Context

[bolivir]

Ok, it seems that the phonegap push plugin had a custom implementation for handling data only pushes. Then it makes sense for me too see this behaviour when sending the payload as i described above.

So for anyone with the described problem verify that youre not sending data only pushes as they wont trigger the notification when the app is closed or in the background.

I think some better documentation on the capacitor site would prevend users for this … huh moment. Some payloads examples would help and as a side note notice that data only pushes dont trigger the notification when the app is closed or in the background.

[Avareto]

receiving message in the background and when the app was close on Android works with capacitor push plugin ony if you send the following firebase cloud message payload:

{
    "token":"bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
    "notification":{
      "title":"Portugal vs. Denmark",
      "body":"great match!"
    },
    "data" : {
      "Nick" : "Mario",
      "Room" : "PortugalVSDenmark"
    }
}

See here: https://firebase.google.com/docs/cloud-messaging/concept-options?hl=en