Oreo (8.0) status bar notification icon all white

问题

I'm currently having problems with Android Oreo showing the notification icon correctly in the status bar and on the notification itself (screenshots provided below).

To create the icons, I am using Android 3.1, right clicking on the res folder and choosing New > Image Asset. Within that, I'm uploading an all white png (as per docs) and selecting a red background as per screenshot:

Within the AndroidManifest.xml, I set the icon like this:

<application ... android:icon="@mipmap/ic_launcher"

The actual App looks correct, but the notification icon does not show up correctly.

Notification icon errors:

回答1:

You need to create icon as per this

Also you need to add

<meta-data
    android:name="com.google.firebase.messaging.default_notification_icon"
    android:resource="@drawable/statusbar_notification" />

in AndroidManifest

来源：https://stackoverflow.com/questions/49736012/oreo-8-0-status-bar-notification-icon-all-white