How can app automatically check if Player.apk is installed or not and if its installed pass this step i dont want user download or install manual

You have not made any changes to you aia project yet....

Here is a link to an extension that will help you to download the apk and install it

I have already provided you with a link to an extension that can check which apps are installed on your device.

You will need to apply both of these in order to achieve what you want.

The user's device may also need a setting to allow apks to be installed (not from playstore)

Do you have the developers permission to use the XMTVPlayer app in this way ?