android/app/src/main/res/drawable/ic_launcher.xml

1<?xml version="1.0" encoding="utf-8"?>
2<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
3    <background android:drawable="@mipmap/ic_launcher_background"/>
4    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
5</adaptive-icon>