I'm using c# and mono and trying to play simple video file from my android but it dosent work

using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;
using Android.Media;

namespace MoviePlayer
{
    [Activity(Label = "MoviePlayer", MainLauncher = true, Icon = "@drawable/icon")]
    public class Activity1 : Activi开发者_JAVA百科ty
    {
        int count = 1;
        MediaPlayer mp;

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            // Set our view from the "main" layout resource
            SetContentView(Resource.Layout.Main);
            mp = new MediaPlayer();
            mp.Prepare();
            mp.SetDataSource()
            mp.Start();

        }
    }
}

I don't know what should be in the mp.SetDataSource() I looked on examples but didn't understand.

You need to pass a path to the file you want to play as a string to the SetDataSource() method to play that file.

Mono Documentation

Android Documentation