How to get key events when application is in background

I think, but am not sure, that the general way to do this is to register a service that will listen for key events that are not handled by whatever is in the foreground.

This will probably depend greatly on what all of the different screens do. At the most general level, you will probably have a mix, changing views when you work with data differently, and different activities for different data sets.

 

Can you provide any information on any API methods needed to register a service like this? I want to make a service that hooks long presses of the home key and replaces the system Recent Apps screen

 

I need to do a similar thing. Did u find any luck on this post ? any API's or methods to override the native long press of Home Key (detect by a service) ?? Thanks in advance.

 

I need to do a similar thing. Did u find any luck on this post ? any API's or methods to override the native long press of Home Key (detect by a service) ?? Thanks in advance.