I have set in my manifest file android:installLocation="preferExternal"
but not installed in external storage as USB.
I am able to install on external storage as SDCARD.
Also, I have tried adb commands such as :
adb devices
adb shell pm set-install-location 2
adb shell pm get-install-location
But only able to transfer on SDCARD.
Please provide suggestion to install app directly on OTG Pen Drive.
Thank You...!!!