如何通过简单地按下uitableview的单元格来显示YouTube视频

I finally figured out how to display youtube video in uitableview,but the code i wrote leads to an youtube image button which is like an overlapped image. After i push the"youtube image button", it directs to a video player with "done" button. The youtube video is played quite fine. and it came back to the the previous page-youtube image button overlapped on uitableview when i push "done" button in youtube video player. My objective is to display youtube video by simply pushing a cell of uitableview and the page goes back to the same uitableview when i push the "done" button inside youtube video player. Below is my code. Can any one notice me how to revise the code to achieve my objective? I finally figured out how to display youtube vi