1.Install visual studio with xamarin.Follow this links-
2.Open visual studio solution that is movieDB.sln file
3.If you want to debug and analyze the codes..can go through the codes.
IF you want to make an apk file from it,just right click yPlayer.Android project,
and click Archive.
4.Once archived,you need to click publish and then there you go,if you have you will be generate apk file.
Please let me know if you find any difficulty,Iam always available.Here is my mail id-