Uninstall all apps on an Android Device that have the intent-filter category IOT_LAUNCHER

clear-android-things-apps.sh

#!/bin/bash
sp="/-\|"
sc=0
spin() {
   printf "\b${sp:sc++:1}"
   ((sc==${#sp})) && sc=0
}
endspin() {
   printf "\r"
}

echo "Uninstalling Android Things category apps"
# This script is for > DP8 
# for < DP8 you need to replace android.intent.category.HOME with android.intent.category.IOT_LAUNCHER on line 25

spin

userInstalledPackages=( $(adb shell pm list packages -3 | sed -e "s/^"package:"//" ) )

iotPackages=()
for userPackage in "${userInstalledPackages[@]}"
do
	:
	spin
	categoryLauncherText=$( adb shell pm dump $userPackage | grep "android.intent.category.HOME")
	if [ -n "${categoryLauncherText}" ]; then
		iotPackages+=(${userPackage})
	fi	
done
endspin

for iotPackage in "${iotPackages[@]}"
do
	:
	echo "Uninstalling $iotPackage"
	adb uninstall $iotPackage
done

echo "Complete"

@arvindpdmn sorry I missed the notification. Yes, run this from a terminal if you only have one device connected it will use adb to talk to it (also there is a terminal window inside Android Studio you could use).

Default startup scripts (I assume you mean on a device) - Android Things runs at a higher level of abstraction than having to run startup scripts. Your best bet is to put some code into your Application class onCreate method (googling this term will help you)

Great idea, thank you!