Android 8 Colour

[vtimejc]

Hi,

On my Oreo device (S8), notification icons become coloured when the notification area is dragged down.

How do I achieve this? I notice that androidIconBGColor is tagged as Android 5-7 only.

[yuriy-universal-ivanov]

Hi @vtimejc ,

Is it possible that you attach screenshot of what exactly you're talking about?

[vtimejc]

Hi @yuriy-universal-ivanov,

Here's a thread with some images that illustrate what I am talking about: https://stackoverflow.com/questions/45874742/android-color-notification-icon

(on my app, the icon is always white, even though I have set androidIconBGColor)

[yuriy-universal-ivanov]

Before Android API 26 (8.0), setColor was used to specify a small icon background, but since 8.0 its behavior has changed - you can't specify the small icon background. See https://developer.android.com/reference/android/app/Notification.Builder.html#setColorized(boolean).

Android 8 chooses a suitable contrast color for a notification icon, so it's easily seen against each background (the color is different depending on the current background).

If you really want to specify the color, you might use setColorized on Android 8 (you'll have to modify the UTNotifications native plugin).

[vtimejc]

Hmm, odd. Do you know how it decides the automatic colour? e.g.

[yuriy-universal-ivanov]

Hi @vtimejc,

Be default it's gray on a light background and white on a dark. You can specify a custom color with setColorized on Android O+. Please write me to universal.tools.contact@gmail.com and I'll send you a patch enabling using the color specified in the notification profile settings in the Android O+ titles.

[vtimejc]

Thanks for all your help!