Android selector with fade in / fade out duration initially invisible

Question

I\'m trying to achieve that an icon in ActionBar will not change states discretely, but by fading animation. When I add android:enterFadeDuration and android:

Answer 1

Use android:enterFadeDuration="@android:integer/config_mediumAnimTime" and android:exitFadeDuration="@android:integer/config_mediumAnimTime".