set icon of application

create a PNG-image in the sizes 36×36, 48×48 and 72×72 (e.g. icon.png).

save images in the project under res/drawable-hdpi (72×72), res/drawable-mdpi (48×48) and res/drawable-ldpi (32×32).

adapt the entry android:icon=“@drawable/icon“ in the file AndroidManifest.xmln if the name of the icon isn't icon.png.