Multiple frame buffer in android

I am working on creating multiple displays on a single screen, i.e., I want to run two different activities simultaneously.

I came to know that, to achieve this requirement we need to change the surfaceflinger code and some hardware properties in the android source. Can a开发者_StackOverflow社区nybody help me in finding the exact procedure in modifying the surfaceflinger and other parts of the android source in order to get two displays

Thanks in advance.

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You cannot run two activities simultaneously just by getting two displays. Only one application/activity can be run at a time on the activity stack.