[lpence]

This is what I have:
1- I scrap the url for the list of available films and store them in a database (title, poster, player page)
2- Then i list items on the kodi screen to be clicked and then played
3- When I click in each image or item on the screen it goes to the database for that item to them extract the playable url link from the player page
(Meaning that I only have one playable url at a time and just when I click on the screen it goes to fetch it)
4- then I expect it to play it ... This how it is successfully working on Win and OSX... No in Android

As I understand the code you posted only concerns step 3.
In order "to be clicked and then played" ListItems produced in step 2 must be marked as playable by calling setProperty('IsPlayable', 'true') on each of them.
And remove everything regarding xbmc.Player() that might still be in step 3.

Thanks for your help. Actually, I found this morning that MP4 files do not play in any of the addons I have installed in my Nvidia Shield. It seems it is about settings or something else. I can play live content no MP4 in other folder/section of my addon so It is not the code in my addon!  I need to investigate more.