During my research on android malwares, I faced an issue of running the malware on android (emulator) which I used 2 methods depends on the situation.
In case you need to only run the app and you do not care about what happenes next, you can use “am” command,
adb shell am start -n package/.activity
On the other hand, if you need to poke the app to imitate (somehow) the real user, Monkey will do the job for you.
adb shell monkey -s 10 --throttle 1000 --pct-touch 100 -p %s 20 > /dev/null &