You can choose any application and set it as a Launcher.
If you want to only run a selected application (electronic photo album, electronic menu, handheld terminal, remote control, monitor, game console, or even TV), use AnyLauncher. It not only block the home key, but also open the app when you press the home key (after openning other apps by mistake operation).
How to use: Open AnyLauncher -> select work mode, parameters, application -> press home key-> select AnyLauncher
Exit: 1. Completely exit:click the notification bar - system settings - application, find anylauncher and clear its data. 2. Temporary exit: set the 2nd launcher in the AnyLauncher settings interface.