<?xml version="1.0" encoding="utf-8"?>
<bitmap
android:src="@drawable/ic_action_remove"
android:alpha="0.4"
xmlns:android="http://schemas.android.com/apk/res/android">
</bitmap>
This piece of code works well only on android API 21 (lollipop).
Are there any ways to set alpha for drawables in previous versions?