In this command :
adb shell am start -a com.example.package/com.example.package.ActivityName
What does the -a mean? I am seeing it as a start option but I can't seem to find any explanation from googling what the -a and sometimes I see a -n option as well.
I would expect this site to have all the explanations but if it does I can not locate it. https://developer.android.com/studio/command-line/adb
First of all your command won't work with -a argument as it has no action defined. :)
-a means action, for ex: -a android.intent.action.VIEW-c means category, for ex: -c android.intent.category.BROWSABLE-d means deeplink, for ex: -d "example:iamdeeplink"-n means FLAG_ACTIVITY_NEW_TASK, so it will create a new task and launch your Activity there even though you might already have it running. It will start it from scratch.-n argument out, would bring the task with your the Activity to the foreground if it exists, if not it will create a new one.