As the purpose is to preview some UI design, thus all the image, video and text resource are hard coded in the application. The map is pre-seperated into three area, top, middle and bottom indicated with different color.
I assigned three different events to those three area respectively. If you put a tagged object with value 01 on the top area, a video element will display on the screen.
If you put a tagged object with value 02 on the top area, a list of image elements will display on the screen.