[android-developers] Re: How to save a Bitmap instance to a *.bmp file.

Sat, 27 Jun 2009 21:27:49 -0700 

Thank you very much!
I think i have to convert the file by myself!

On 6月27日, 午後11:52, Mark Murphy <[email protected]> wrote:
> 楊健 wrote:
> >  How can i save a Bitmap instance to a *.bmp file?Anyone knows?
>
> Option #1: Don't do it. So, for example, if this is a question of
> uploading data to some server, let the server do the conversion from PNG.
>
> Option #2: See if there is a way, through the implementation of Bitmap
> in the open source code, for C/C++ code to get its hands on the raw byte
> array that is the image. Then, use the newly-released NDK to write
> yourself a utility method somewhere that works like compress(), but
> writes out BMP files, perhaps using some existing BMP-encoding C code
> you find somewhere.
>
> > Is it strange that we can only save a bitmap instance to a png or jpg
> > file?
>
> No. BMP files are huge (compared to a PNG edition of the same image),
> and huge is not something you typically want on a mobile phone.
>
> --
> Mark Murphy (a Commons 
> Guy)http://commonsware.com|http://twitter.com/commonsguy
>
> _Android Programming Tutorials_ Version 1.0 Available!
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