use service which run back

2010/3/22 Michael Wu <[email protected]>:
> Hi, all.
>
> I have a question about application excution. Generally, only one activity
> could be excuted at the same
> time.
>
> Even though there are still other applications which is excuted in the
> background, there is still only one
> application could be showed on the screen display.
>
> ----------
> |         |
> | AP1  |    AP2 is excuted in background.
> |         |
> ----------
>
> My question is, Is it possible  to achieve double activity showing on the
> screen display by modifying the
> android framework? As the following picture, two applications are
> excuted and showed on the screen
> display at the same time.
>
> -----------
> | AP1   |
> |          |
> | AP2   |
> -----------
>
> I have some ideas:
> 1. Change the scale of application into smaller size.
> 2. Modify the framework to activate another view activity.
> However, I am not sure how much effort should I pay on the second step. Does
> anyone have some ideas
> to share with me?
>
>
> Regards
> Michael
>
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