How do you install an APK file in the Android emulator?

Question

I finally managed to obfuscate my Android application, now I want to test it by installing the APK file and running it on the emulator.

Answer 1

If you've created more than one emulators or if you have an Android device plugged in, adb will complain with

error: more than one device and emulator

adb help is not extremely clear on what to do:

-d                        - directs command to the only connected USB device...
-e                        - directs command to the only running emulator...
-s         ...
-p  ...

The flag you decide to use has to come before the actual adb command:

adb -e install path/to/app.apk