Android 4.0 requires the size of the notification bar icon

An application previously runs well on Android systems of different versions. Recently, in the android 4.0 compatibility test, the test Department found that the icons of the application are incomplete when they are displayed in the notification bar.

After checking, we found that when creating the notification bar icon:

Notification NF = new notification (R. drawable. policy_icon, "", system. currenttimemillis ());

The size of the image resource yy_icon.png is 72*72. It will be normal after it is changed to 48*48.

In earlier Android versions, the image is automatically scaled to ensure full display. Android 4.0 seems to have removed this feature.