An Android library supports badge notification like iOS in Samsung, LG, Sony and HTC launchers.
'me.leolin:ShortcutBadger:1.1.2'
<dependency>
<groupId>me.leolin</groupId>
<artifactId>ShortcutBadger</artifactId>
<version>1.1.2</version>
</dependency>
<dependency org="me.leolin" name="ShortcutBadger" rev="1.1.2"/>
"me.leolin", "ShortcutBadger", "1.1.2"