Android – Dynamic TableLayout not appearing-Collection of common programming errors

I am trying to implement a HUD display to my cutsom keyboard. The HUD will contain pairs of key/value. I need to programatically create a TableLayout and draw it on my canvas. In order to do this, I am overriding the keyboardview onDraw() method:

@Override
public void onDraw(Canvas canvas) {  // In the custom MyKeyboardView class
    MyHUD hud = new MyHUD(getContext());
    super.onDraw(canvas);
    hud.tl.draw(canvas);    //tl being the TableLayout to draw
}

MyHUD class:

public class MyHUD {

    public TableLayout tl;
    private MyData mData;

    public MyHUD(Context context) {

      TableRow.LayoutParams trParams = new TableRow.LayoutParams(
        TableRow.LayoutParams.FILL_PARENT, TableRow.LayoutParams.WRAP_CONTENT);
      TableLayout.LayoutParams tlParams = new TableLayout.LayoutParams(
        TableLayout.LayoutParams.FILL_PARENT, TableLayout.LayoutParams.WRAP_CONTENT);

      tl = new TableLayout(context);
      tl.setLayoutParams(tlParams);

      for (int i = 0; i < 10; i++) {

        TableRow tr = new TableRow(context);
        tr.setId(100+i);
        tr.setLayoutParams(trParams);

        TextView charTV = new TextView(context);
        charTV.setId(200+i);
        charTV.setText("Hello " + i);
        charTV.setTextColor(Color.RED);
        //charTV.setLayoutParams(trParams);
        tr.addView(charTV);

        TextView keyTV = new TextView(context);
        keyTV.setId(300+i);
        keyTV.setText("world " + i);
        keyTV.setTextColor(Color.CYAN);
        //keyTV.setLayoutParams(trParams);
        tr.addView(keyTV);

        tl.addView(tr, tlParams);   
      }       
   }
}

(Note that currently there is no data fetching, just a “Hello world” for test purposes). I have commented out the TextView layouts, as seen on several other posts, but that doesn’t seem to be the problem.

Alternative option:

Instead of instanciating the TableLayout via a constructor, I have tried something like:

tl = (TableLayout) findViewById(R.id.my_hud);

Along with the following XML:

The problem is that the findViewById method is undefined for my custom class.

Any idea why it is not properly drawing the TableLayout?