<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:aapt="http://schemas.android.com/aapt" android:shape="rectangle"> <solid android:color="@android:color/transparent"/> <size android:height="@dimen/design_navigation_icon_size" android:width="@dimen/design_navigation_icon_size"/> </shape>Download file