# show installed packages

adb shell pm list packages -3

# show permisson

adb shell "dumpsys package com.softmedia.receiver|grep SYSTEM_ALERT_WINDOW"

# revoke permission

adb shell pm revoke com.softmedia.receiver android.permission.SYSTEM_ALERT_WINDOW

# grant permission

adb shell pm grant com.softmedia.receiver android.permission.SYSTEM_ALERT_WINDOW