Problem concerning loading of MMPK in android studio

[liwingszeli]

Hi everyone, i am working on my final year project which is to make an app using arcgis runtime sdk for android. However, i face difficulties when trying to open my mobile map package (.mmpk) and display it in an app with the use of android studio. I followed the tutorial here: Display a map while offline | ArcGIS for Developers, and it said that i need to load the mmpk file on to my device. The problem is that i don't know where should i load the mmpk file to so that i can call it later in my codes? To my android phone? external storage? I have attached my code in attachment. Please take a look and give me some advice. Thanks.