Allow updating of notification badges only

[jamieshaw]

This is more an issue with Home Assistant at large, but it would be nice if the ability to push a blank message to iOS to silently update the badge of the icon in the background.

An instance of this would be to set an automation to monitor states of persistent_notification components; and have the count of them dynamically pushed to iOS as they are created and dismissed.

The issue is that blank messages cannot be pushed from Home Assistant. Perhaps allow special circumstances for notify.ios?

[robbiet480]

You can now send a push with message set to delete_alert to not show a message.

[jamieshaw]

Apologies for the silence on this; just got around to setting this up and can confirm it works. Thanks!

It has flagged another point; which I'll create a separate issue for – it doesn't seem possible to send notifications without sound? Just so the badge updates silently, without vibration, in the background.

[jamieshaw]

Finally getting around to testing the new mobile_app notification system and noticed this is broken – is there a new key for similar functionality; or are features still being ported to the new system?

[robbiet480]

This has been re-implemented for 2.0 as noted in #463.