Why can't I access the Assets folder of my Xamarin.Android project this way? - xamarin

Question

I want to set the Typeface of the TextView to a font in the Assets folder. The problem-code is "var font = Typeface.CreateFromAsset(Assets, "Enter-The-Grid.ttf");," not the first use, but the second one towards the end of my code (the red squiggly line appears under "Assets").
namespace UndergroundSports.Android
{
[Activity]
public class CityPage : Activity
{
Sport[] sports = Sport.Sports;
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
this.SetContentView(Resource.Layout.CityPage);
var font = Typeface.CreateFromAsset(Assets, "Enter-The-Grid.ttf");
Button bttJoin = FindViewById<Button>(Resource.Id.bttJoin);
bttJoin.Click += (sender, e) =>
{
gotoJoinPage();
};
bttJoin.Typeface = font;
ListView lstSports = FindViewById<ListView>(Resource.Id.lstSport);
lstSports.Adapter = new SportsAdapter(this, sports);
lstSports.ItemClick += (object sender, AdapterView.ItemClickEventArgs e) =>
{
Sport selectedFromList = sports[e.Position];
Global.Instance.CurrentSport = selectedFromList;
gotoMembersPage();
};
}
private void gotoJoinPage()
{
var intent = new Intent(this, typeof(JoinPage));
StartActivity(intent);
}
private void gotoMembersPage()
{
var intent = new Intent(this, typeof(MembersPage));
StartActivity(intent);
}
public class SportsAdapter : BaseAdapter<Sport>
{
Sport[] items;
Activity context;
public SportsAdapter(Activity context, Sport[] items) : base()
{
this.context = context;
this.items = items;
}
public override long GetItemId(int position)
{
return position;
}
public override Sport this[int position]
{
get { return items[position]; }
}
public override int Count
{
get { return items.Length; }
}
public override View GetView(int position, View convertView, ViewGroup parent)
{
View view = convertView;
if (view == null)
view = context.LayoutInflater.Inflate(global::Android.Resource.Layout.SimpleListItem1, null);
TextView txtView = view.FindViewById<TextView>(global::Android.Resource.Id.Text1);
var font = Typeface.CreateFromAsset(Assets, "Enter-The-Grid.ttf");
txtView.Text = items[position].Name;
txtView.Gravity = GravityFlags.Center;
txtView.Typeface = font;
return view;
}
}
}
}
But when I tried to create a variable containing the font I got an error telling me:
Cannot access a nonstatic member of outer type Android.Content.Context' via nested typeUndergroundSports.Android.CityPage.SportsAdapter' (CS0038) (UndergroundSportsAndroid)"
From looking at related questions I think I need to either create an instance of the Assets object or make it static.
I'm pretty new to C# and don't really understand what's going on. I would appreciate it if someone could explain why I'm unable to access Assets in this part of my code. The part that confuses me the most is that I use the exact same line of code to access the font earlier within the same file without getting that error.

Answer 1

var font = Typeface.CreateFromAsset(context.Assets, "Enter-The-Grid.ttf");
Pass your activity's instance to your adapter via constructor, and use it to access Assests
public class SportsAdapter : BaseAdapter<Sport>
{
Sport[] items;
Activity context;
public SportsAdapter(Activity context, Sport[] items) : base()
{
this.context = context;
this.items = items;
}
....
public override View GetView(int position, View convertView, ViewGroup parent)
{
View view = convertView;
if (view == null)
view = context.LayoutInflater.Inflate(global::Android.Resource.Layout.SimpleListItem1, null);
TextView txtView = view.FindViewById<TextView>(global::Android.Resource.Id.Text1);
var font = Typeface.CreateFromAsset(context.Assets, "Enter-The-Grid.ttf");
txtView.Text = items[position].Name;
txtView.Gravity = GravityFlags.Center;
txtView.Typeface = font;
return view;
}
}
Also, make sure your .ttf file's build action is set to AndroidAssests. Right the .tff file > Build Action > AndroidAsset