On 4月1日, 上午10时10分, Dianne Hackborn <hack...@android.com> wrote:
> 2009/3/31 waterblood <guoyin.c...@gmail.com>
>
> > 1. As a multi windows systems, each window whill hold two buffers
> > (front buffer, back buffer in surface). Is all the buffer size
> > determined by the windows size or the display pannel size? If its size
> > is same as the window'size, whether surface will destroyed and
> > recreated if we resize it?
>
> It's the size of the window. The buffer is resized when the window resizes;
> the surface is not destroyed.
>
if so, the Layer must have information about its position in display.
But I only see it is created as the code below:
Layer* layer = new Layer(this, display, client, id);
status_t err = layer->setBuffers(client, w, h, format, flags);
so layer only knows the windows size w,h, and format. How it knows it
is relative position in display？
> > 2. How to control the z-order of Layer in surface? everytime a new
> > Layer created, it will be added to the top in surfaceflinger. So if we
> > want jump to another exist windows, how to updat the z-order of the
> > former window, jump-to window?
>
> Don't use surface flinger directly, use the window manager; it takes care of
> Z-ordering.
>
> --
> Dianne Hackborn
> Android framework engineer
> hack...@android.com
>
> Note: please don't send private questions to me, as I don't have time to
> provide private support. All such questions should be posted on public
> forums, where I and others can see and answer them.
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