how to make that text was written vertically? how to rotate text 90 degrees?
Write each letter individually is stupid, but now ,i don't know another way.

```
 Paint paint = new Paint();
 public DrawView(Context context, double arr[])
{
    super(context);
    paint.setColor(Color.BLACK);
}
   @Override
   public void onDraw(Canvas canvas)
    {
      canvas.drawText("Test",50, 50, paint);
    }

```