I'm implementing closed capture, and when I first boot the tv, it comes out well, but when an event such as changing the channel, text didn't come out.
For confirmation, I drewRect (0, 0, 1f, 1f, paint). At first, it came out so small that you couldn't see a square, but when the same event happened, it was drawn by filling half of the screen. That's why I thought it was drawing in a strange place, not on the screen. I also checked the coordinates and size of the canvas, but it hasn't changed. If you know the cause of the problem or how to solve it, please reply. Thank you.